RPW Data Center

solo_L1_rpw-tds-sbm2-tswf

Xavier Bonnin — 2026-08-24T16:38:16Z

The data product solo_L1_rpw-tds-sbm2-tswf provides Level 1 uncalibrated electric (E-field) and magnetic (B-field) waveform snapshots measured during the Selected Burst Mode 2 (SBM2) targeting solar type 3 bursts source regions.

DOI: https://doi.org/10.57780/esa-3xcjd4w
Publisher: ESA
Citation: European Space Agency & Maksimovic, M. (2024). RPW, Radio and Plasma Waves instrument (Version v1.0) [Dataset]. European Space Agency. https://doi.org/10.57780/ESA-3XCJD4W

Link to the data repository

Data files are available from the Solar Orbiter Archive home page.

Copies of the files are also stored in the LIRA local data repository.

Data product overview

Snapshots feature variable lengths up to 65k samples and are routinely sampled at 262 kHz or 524 kHz.

Data product key facts
Type of data	Time series
Physical quantity	E- and B-field waveforms
Units	Unitless
Time resolution	Variable
Data format	CDF
File name	solo_L1_rpw-tds-sbm2-tswf_[yyyymmddTHHMMSS]-[yyyymmddTHHMMSS]_V[version].cdf
Granularity	1 file per burst event interval
Expected data volume	Variable

Data organization

The file architecture mirrors the nominal survey snapshot mapping found in solo_L1_rpw-tds-surv-tswf. Snapshot selection parameters assigned on board are explicitly exposed via QUALITY_FACT and DOWNLINK_INFO records.

NAME	TYPE	UNITS	DESCRIPTION
Epoch	CDF_TIME_TT2000	ns	Default reference time representing the first sample.
ACQUISITION_TIME	CDF_UINT4[2]	s, s / 65536	CCSDS CUC format coarse and fine time parts of the first sample.
QUALITY_FLAG	CDF_UINT1	unitless	Quality flag tracking data reliability.
QUALITY_BITMASK	CDF_UINT2	unitless	Bitmask flag highlighting context information at the receiver level.
SURVEY_MODE	CDF_UINT1	unitless	Flag indicating SURVEY_BURST (=1) or SURVEY_NORMAL (=0) mode.
BIA_STATUS_INFO	CDF_UINT1[6]	unitless	BIAS instrument status byte.
SAMPLING_RATE	CDF_REAL4	Hz	TDS actual hardware sampling rate in Hz (262 or 524 kHz).
HF_DATA_ARTEFACTS	CDF_UINT1[5]	unitless	Bitmask pointing out high-frequency data overflows.
FILTER_COEFS	CDF_UINT1	unitless	Index identifier of the FIR filter coefficients used.
RPW_STATUS_INFO	CDF_UINT1[8]	unitless	Overall instrument status bitmask forwarded from the DPU.
INPUT_CONFIG	CDF_UINT4	unitless	Direct bitmask of the TDS analog input setup.
SNAPSHOT_SEQ_NR	CDF_UINT2	unitless	Sequential tracking integer incremented with every snapshot.
ACQUISITION_TIME_UNITS	CDF_CHAR[2] (NRV)	unitless	Metadata units label for ACQUISITION_TIME.
ACQUISITION_TIME_LABEL	CDF_CHAR[2] (NRV)	unitless	Metadata tracking description for CUC components.
CHANNEL_STATUS_INFO	CDF_UINT1[4]	unitless	Identification mapping code for active snapshot lines.
SAMPS_PER_CH	CDF_UINT4	unitless	Total number of valid samples contained per channel.
WAVEFORM_DATA	CDF_INT2[4, 65536]	Count	Uncalibrated E-field and B-field waveform snapshot matrix.
CHANNEL_LABEL	CDF_CHAR[4] (NRV)	unitless	Human-readable axes labels ("TDS CH1" to "TDS CH4").
WAVEFORM_LABEL	CDF_CHAR[4] (NRV)	unitless	Structural data tracking labels.
SCET	CDF_REAL8	Ticks	Spacecraft Elapsed Time of the onboard clock master.
SYNCHRO_FLAG	CDF_UINT1	unitless	Clock alignment flag (0=synchronized, 1=not synchronized).
QUALITY_FACT	CDF_UINT2	unitless	Quality evaluation metric factor assigned to the downlinked packet.
DOWNLINK_INFO	CDF_UINT1[2]	unitless	Combined onboard selection code and transmission algorithm identifiers.

Rules of use

Please read the text of the Rules_of_use global attribute in the CDF files.

Caveats and known issues

Table below gives the list of main known issues and the actions taken to mitigate them.

Please read the CAVEATS global attribute entries and the QUALITY_FLAG zVariable values in the CDF files to be aware of the possible issues and limitations concerning data.

ISSUE	MITIGATION(S)
RPW MY (3) electrical antenna signal was lost intermittently between November 2023 and February 28, 2024. TDS acquisitions were impacted when measurements were performed on this antenna.	TDS receiver was switched into the monopole mode (SE1) configuration.

Release notes

See MODS global attribute in the CDF files for an history of the data modifications.

Authors

David Pisa, and Jan Soucek.

References

The Solar Orbiter Radio and Plasma Waves (RPW) instrument, Maksimovic et al., A&A, 2020 (https://doi.org/10.1051/0004-6361/201936214)
Metadata Definition for Solar Orbiter Science Data, Helen R. Middleton, (https://s2e2.cosmos.esa.int/confluence/display/SOSP/Metadata+Definition+for+Solar+Orbiter+Science+Data)
RPW Data Product Description Document (DPDD) (https://www.cosmos.esa.int/documents/3689933/11863517/ROC-PRO-DAT-NTT-00075-LES_Iss01_Rev03_%28RPW-Data-Product-Description-Document%29.pdf/02ec3da1-0acd-cf25-7cc1-0ac51f9f5bf4?t=1679312094778)
NASA CDF Web portal (https://cdf.gsfc.nasa.gov/)

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solo_L1_rpw-lfr-sbm2-cwf

Diane Berard — 2026-08-24T15:58:56Z

solo_L1_rpw-lfr-sbm2-cwf data provides uncalibrated Continuous WaveForm of electric (E) and magnetic (B) field components in SBM2 mode, of the LFR analyser of the Solar Orbiter/RPW instrument.

Link to the data repository

Data files are available from the Solar Orbiter Archive home page.

Copies of the files are also stored in the LIRA local data repository.

Data product overview

Data product key facts
Type of data	Time series
Physical quantity	E & B components of Continuous WaveForm
Units	Unitless
Sampling rate	256 Hz (F2)
Data format	CDF
File name	solo_L1_rpw-lfr-sbm2-cwf_[yyyymddTHHMMSS-yyyymmddTHHMMSS]_V[version].cdf
Granularity	1 file per sbm2 event
Expected data volume	variable

Data organization

Table below gives the name, data type, units and description of the zVariables stored in the CDF file.

In the the “TYPE” column, the expected size (i.e., number of elements along each dimension) of the zVariable for a CDF record is given between bracket (e.g., “[1]”).

Non-record-variant zVariables are indicated by a “(NRV)” additional label in the “TYPE” column.

NAME	TYPE	UNIT	DESCRIPTION
Epoch	CDF_TIME_TT2000[1]	ns	Epoch time of the record
ACQUISITION_TIME	CDF_UINT4[2]	unitless	CCSDS CUC Acquisition time as returned in TM packets
QUALITY_FLAG	CDF_UINT1[1]	unitless	Flag to indicate the quality of the data
COMMON_BIA_STATUS_FLAG	CDF_UINT1[1]	unitless	LFR common parameters and BIAS status info relevancy flag
QUALITY_BITMASK	CDF_UINT2[1]	unitless	Additional flag to add quality information
SURVEY_MODE	CDF_UINT1[1]	unitless	LFR survey mode
FREQ	CDF_UINT1[1]	unitless	Used to determine the frequency. 2 for F2
BIAS_MODE_MUX_SET	CDF_UINT1[1]	unitless	Copy of multiplexer setting
BIAS_MODE_HV_ENABLED	CDF_UINT1[1]	unitless	Copy of enable/disable HV (+- 100V).
BIAS_MODE_BIAS1_ENABLED	CDF_UINT1[1]	unitless	Copy of enable/disable BIAS 1.
BIAS_MODE_BIAS2_ENABLED	CDF_UINT1[1]	unitless	Copy of enable/disable BIAS 2.
BIAS_MODE_BIAS3_ENABLED	CDF_UINT1[1]	unitless	Copy of enable/disable BIAS 2.
BIAS_ON_OFF	CDF_UINT1[1]	unitless	Copy of BIAS status
BW	CDF_UINT1[1]	unitless	BIAS Works/BIAS Fails configuration
SP0	CDF_UINT1[1]	unitless	Shaping of electrical data
SP1	CDF_UINT1[1]	unitless	Shaping of electrical data
R0	CDF_UINT1[1]	unitless	Rooting of electrical data
R1	CDF_UINT1[1]	unitless	Rooting of electrical data
R2	CDF_UINT1[1]	unitless	Rooting of electrical data
V	CDF_INT2[1]	count	Potential value
E	CDF_INT2[2]	count	Electric field
B	CDF_INT2[3]	count	Magnetic field
ACQUISITION_TIME_UNITS	CDF_CHAR[2]	unitless	Label for ACQUISITION_TIME UNIT_PTR attribute
ACQUISITION_TIME_LABEL	CDF_CHAR[2]	unitless	Label for ACQUISITION_TIME
SCET	CDF_REAL8[1]	Ticks	Spaceraft Elapsed Time
SYNCHRO_FLAG	CDF_UINT1[1]	unitless	Time synchronization flag

Rules of use

Please read the text of the Rules_of_use global attribute in the CDF files.

Caveats and known issues

Table below gives the list of main known issues and the actions taken to mitigate them.

Please read the CAVEATS global attribute entries and the QUALITY_FLAG zVariable values in the CDF files to be aware of the possible issues and limitations concerning data.

ISSUE	MITIGATION(S)

Release notes

See MODS global attribute in the CDF files for an history of the data modifications.

Authors

Thomas Chust, Rodrigue Piberne, Bruno Katra, Alexis Jeandet and Véronique Bouzid (retired).

References

The Solar Orbiter Radio and Plasma Waves (RPW) instrument, Maksimovic et al., A&A, 2020 (https://doi.org/10.1051/0004-6361/201936214)
Metadata Definition for Solar Orbiter Science Data, Helen R. Middleton, (https://s2e2.cosmos.esa.int/confluence/display/SOSP/Metadata+Definition+for+Solar+Orbiter+Science+Data)
RPW Data Product Description Document (DPDD) (https://www.cosmos.esa.int/documents/3689933/11863517/ROC-PRO-DAT-NTT-00075-LES_Iss01_Rev03_%28RPW-Data-Product-Description-Document%29.pdf/02ec3da1-0acd-cf25-7cc1-0ac51f9f5bf4?t=1679312094778)
NASA CDF Web portal (https://cdf.gsfc.nasa.gov/)

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solo_L1_rpw-lfr-sbm2-bp2

Diane Berard — 2026-08-24T15:55:48Z

solo_L1_rpw-lfr-sbm2-bp2 data provides uncalibrated Basic Parameters set 2 (BP2) in SBM2 mode, computed for the frequency ranges F0 and F1 of the LFR analyser of the Solar Orbiter/RPW instrument.

Link to the data repository

Data files are available from the Solar Orbiter Archive home page.

Copies of the files are also stored in the LIRA local data repository.

Data product overview

The BP2s are just a compression of the frequency averaged ASM.

Data have been produced following the method described in [RD?].

Data product key facts
Type of data	Spectrum
Physical quantity	Basic Parameters set 2 (auto/cross correlations of the EM signal)
Units	Unitless
Frequency range	120 to 9840 Hz in burst mode
Frequency number	48
Frequency step	64Hz (F1) and 384Hz (F0)
Frequency scale	Linear
Time resolution	1 second
Data format	CDF
File name	solo_L1_rpw-lfr-sbm2-bp2_[yyyymmddTHHMMSS-yyyymmddTHHMMSS]_V[version].cdf
Granularity	1 file per SBM2 event
Expected data volume	variable

Data organization

Table below gives the name, data type, units and description of the zVariables stored in the CDF file.

In the the “TYPE” column, the expected size (i.e., number of elements along each dimension) of the zVariable for a CDF record is given between bracket (e.g., “[1]”).

Non-record-variant zVariables are indicated by a “(NRV)” additional label in the “TYPE” column.

NAME	TYPE	UNIT	DESCRIPTION
Epoch	CDF_TIME_TT2000[1]	ns	Epoch time of the record
ACQUISITION_TIME	CDF_UINT4[2]		CCSDS CUC Acquisition time as returned in TM packets
QUALITY_FLAG	CDF_UINT1[1]		Flag to indicate the quality of the data
COMMON_BIA_STATUS_FLAG	CDF_UINT1[1]		LFR common parameters and BIAS status info relevancy flag
QUALITY_BITMASK	CDF_UINT1[1]		Additional flag to add quality information
SURVEY_MODE	CDF_UINT1[1]		LFR survey mode
FREQ	CDF_UINT1[1]		Index to indicate the sampling frequency of the sbm2 mode BP2 : F0 or F1 in order to use only one skeleton for the 2 sbm2 mode bp2 products of ICD.
BIAS_MODE_MUX_SET	CDF_UINT1[1]		Copy of multiplexer setting
BIAS_MODE_HV_ENABLED	CDF_UINT1[1]		Copy of enable/disable HV (+- 100V).
BIAS_MODE_BIAS1_ENABLED	CDF_UINT1[1]		Copy of enable/disable BIAS 1.
BIAS_MODE_BIAS2_ENABLED	CDF_UINT1[1]		Copy of enable/disable BIAS 2.
BIAS_MODE_BIAS3_ENABLED	CDF_UINT1[1]		Copy of enable/disable BIAS 2.
BIAS_ON_OFF	CDF_UINT1[1]		Copy of BIAS status
BW	CDF_UINT1[1]		BIAS Works/BIAS Fails configuration
SP0	CDF_UINT1[1]		Shaping of electrical data
SP1	CDF_UINT1[1]		Shaping of electrical data
R0	CDF_UINT1[1]		Rooting of electrical data
R1	CDF_UINT1[1]		Rooting of electrical data
R2	CDF_UINT1[1]		Rooting of electrical data
BP2_CNT	CDF_UINT1[1]		Number of BP2 sets read for a given sampling frequency (F0, F1 or F2).
AUTO	CDF_REAL8[26,5]		Component of autovariances from the EM data stream
CROSS_RE	CDF_REAL4[26,10]		Real part of complex cross correlations from the EM data
CROSS_IM	CDF_REAL4[26,10]		Imaginary part of complex cross correlations from the EM data
ACQUISITION_TIME_UNITS	CDF_CHAR[2]		Label for ACQUISITION_TIME UNIT_PTR attribute
ACQUISITION_TIME_LABEL	CDF_CHAR[2]		Label for ACQUISITION_TIME
SCET	CDF_REAL8[1]	Ticks	Spaceraft Elapsed Time
SYNCHRO_FLAG	CDF_UINT1[1]		Flag to indicate if the local time is synchronized with the RPW DPU clock or not. Possible values: synchronized=0, not synchronized=1. This flag is extracted from ACQUISITION_TIME in L0 packets, it is the MSB of the CUC time.

Rules of use

Please read the text of the Rules_of_use global attribute in the CDF files.

Caveats and known issues

Table below gives the list of main known issues and the actions taken to mitigate them.

Please read the CAVEATS global attribute entries and the QUALITY_FLAG zVariable values in the CDF files to be aware of the possible issues and limitations concerning data.

ISSUE	MITIGATION(S)

Release notes

See MODS global attribute in the CDF files for an history of the data modifications.

Authors

Thomas Chust, Rodrigue Piberne, Bruno Katra, Alexis Jeandet and Véronique Bouzid (retired).

References

The Solar Orbiter Radio and Plasma Waves (RPW) instrument, Maksimovic et al., A&A, 2020 (https://doi.org/10.1051/0004-6361/201936214)
Metadata Definition for Solar Orbiter Science Data, Helen R. Middleton, (https://s2e2.cosmos.esa.int/confluence/display/SOSP/Metadata+Definition+for+Solar+Orbiter+Science+Data)
RPW Data Product Description Document (DPDD) (https://www.cosmos.esa.int/documents/3689933/11863517/ROC-PRO-DAT-NTT-00075-LES_Iss01_Rev03_%28RPW-Data-Product-Description-Document%29.pdf/02ec3da1-0acd-cf25-7cc1-0ac51f9f5bf4?t=1679312094778)
NASA CDF Web portal (https://cdf.gsfc.nasa.gov/)

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solo_L1_rpw-lfr-sbm2-bp1

Diane Berard — 2026-08-24T15:53:54Z

solo_L1_rpw-lfr-sbm2-bp1 data provides uncalibrated Basic Parameters set 1 (BP1) in SBM2 mode, computed for the frequency ranges F0 and F1 of the LFR analyser of the Solar Orbiter/RPW instrument.

Link to the data repository

Data files are available from the Solar Orbiter Archive home page.

Copies of the files are also stored in the LIRA local data repository.

Data product overview

The BP1s consist of seven spectral quantities which aim at characterizing the waves: the total electric and magnetic power spectra, the wave normal vector, a wave ellipticity estimator, a wave planarity estimator, the radial-component of the Poynting vector, and a phase velocity estimator.

Data have been produced following the method described in [RD?].

Data product key facts
Type of data	Spectrum
Physical quantity	Basic Parameters set 1 (wave spectral quantities)
Units	Unitless
Time resolution	1 second
Frequency range	120 to 9840 Hz in burst mode
Frequency number	48
Frequency step	64Hz (F1) and 384Hz (F0)
Frequency scale	Linear
Data format	CDF
File name	solo_L1_rpw-lfr-sbm2-bp1_[yyyymmddTHHMMSS-yyyymmddTHHMMSS]_V[version].cdf
Granularity	1 file per SBM2 event
Expected data volume	variable

Data organization

Table below gives the name, data type, units and description of the zVariables stored in the CDF file.

In the the “TYPE” column, the expected size (i.e., number of elements along each dimension) of the zVariable for a CDF record is given between bracket (e.g., “[1]”).

Non-record-variant zVariables are indicated by a “(NRV)” additional label in the “TYPE” column.

NAME	TYPE	UNIT	DESCRIPTION
Epoch	CDF_TIME_TT2000[1]	ns	Epoch time of the record
ACQUISITION_TIME	CDF_UINT4[2]		CCSDS CUC Acquisition time as returned in TM packets
QUALITY_FLAG	CDF_UINT1[1]		Flag to indicate the quality of the data
COMMON_BIA_STATUS_FLAG	CDF_UINT1[1]		LFR common parameters and BIAS status info relevancy flag
QUALITY_BITMASK	CDF_UINT1[1]		Additional flag to add quality information
SURVEY_MODE	CDF_UINT1[1]		LFR survey mode
FREQ	CDF_UINT1[1]		Index to indicate the sampling frequency of the SBM2 mode BP1 : F0 or F1 in order to use only one skeleton for the 2 sbm2 mode bp1 products of ICD.
BIAS_MODE_MUX_SET	CDF_UINT1[1]		Copy of multiplexer setting
BIAS_MODE_HV_ENABLED	CDF_UINT1[1]		Copy of enable/disable HV (+- 100V).
BIAS_MODE_BIAS1_ENABLED	CDF_UINT1[1]		Copy of enable/disable BIAS 1.
BIAS_MODE_BIAS2_ENABLED	CDF_UINT1[1]		Copy of enable/disable BIAS 2.
BIAS_MODE_BIAS3_ENABLED	CDF_UINT1[1]		Copy of enable/disable BIAS 2.
BIAS_ON_OFF	CDF_UINT1[1]		Copy of BIAS status
BW	CDF_UINT1[1]		BIAS Works/BIAS Fails configuration
SP0	CDF_UINT1[1]		Shaping of electrical data
SP1	CDF_UINT1[1]		Shaping of electrical data
R0	CDF_UINT1[1]		Rooting of electrical data
R1	CDF_UINT1[1]		Rooting of electrical data
R2	CDF_UINT1[1]		Rooting of electrical data
BP1_CNT	CDF_UINT1[1]		Number of BP1 sets read for a given sampling frequency (F0, F1 or F2).
PE	CDF_REAL8[26]		Spectral power of E field
PB	CDF_REAL8[26]		Spectral power of B field
NVEC_V0	CDF_REAL4[26]		Component 0 of wave normal vector from magnetic field
NVEC_V1	CDF_REAL4[26]		Component 1 of wave normal vector from magnetic field
NVEC_V2	CDF_UINT1[26]		Sign of component 2 of wave normal vector from magnetic field
ELLIP	CDF_REAL8[26]		Wave ellipticity from magnetic field
DOP	CDF_UINT1[26]		Degree of polarization from magnetic field
SX_REA	CDF_REAL8[26]		Real parts of the X component of the Poynting vector
SX_ARG	CDF_UINT1[26]		Argument bit = 1 if	Im(SX)	>	Re(SX)	else 0
VPHI_REA	CDF_REAL8[26]		Phase velocities estimated from the X projection of Maxwell-Faraday equation
VPHI_ARG	CDF_UINT1[26]		Argument bit = 1 if	Im(SX)	>	Re(SX)	else 0
ACQUISITION_TIME_UNITS	CDF_CHAR[2]		Label for ACQUISITION_TIME UNIT_PTR attribute
ACQUISITION_TIME_LABEL	CDF_CHAR[2]		Label for ACQUISITION_TIME
SCET	CDF_REAL8[1]	Ticks	Spaceraft Elapsed Time
SYNCHRO_FLAG	CDF_UINT1[1]		Flag to indicate if the local time is synchronized with the RPW DPU clock or not. Possible values: synchronized=0, not synchronized=1. This flag is extracted from ACQUISITION_TIME in L0 packets, it is the MSB of the CUC time.

Rules of use

Please read the text of the Rules_of_use global attribute in the CDF files.

Caveats and known issues

Table below gives the list of main known issues and the actions taken to mitigate them.

Please read the CAVEATS global attribute entries and the QUALITY_FLAG zVariable values in the CDF files to be aware of the possible issues and limitations concerning data.

ISSUE	MITIGATION(S)

Release notes

See MODS global attribute in the CDF files for an history of the data modifications.

Authors

Thomas Chust, Rodrigue Piberne, Bruno Katra, Alexis Jeandet and Véronique Bouzid (retired).

References

The Solar Orbiter Radio and Plasma Waves (RPW) instrument, Maksimovic et al., A&A, 2020 (https://doi.org/10.1051/0004-6361/201936214)
Metadata Definition for Solar Orbiter Science Data, Helen R. Middleton, (https://s2e2.cosmos.esa.int/confluence/display/SOSP/Metadata+Definition+for+Solar+Orbiter+Science+Data)
RPW Data Product Description Document (DPDD) (https://www.cosmos.esa.int/documents/3689933/11863517/ROC-PRO-DAT-NTT-00075-LES_Iss01_Rev03_%28RPW-Data-Product-Description-Document%29.pdf/02ec3da1-0acd-cf25-7cc1-0ac51f9f5bf4?t=1679312094778)
NASA CDF Web portal (https://cdf.gsfc.nasa.gov/)

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solo_L1_rpw-lfr-sbm1-cwf

Diane Berard — 2026-08-24T15:51:12Z

solo_L1_rpw-lfr-sbm1-cwf data provides uncalibrated Continuous WaveForm of electric (E) and magnetic (B) field components in SBM1 mode, of the LFR analyser of the Solar Orbiter/RPW instrument.

Link to the data repository

Data files are available from the Solar Orbiter Archive home page.

Copies of the files are also stored in the LIRA local data repository.

Data product overview

Data product key facts
Type of data	Time series
Physical quantity	E & B components of Continuous WaveForm
Units	Unitless
Sampling rate	4096 Hz (F1)
Data format	CDF
File name	solo_L1_rpw-lfr-sbm1-cwf_[yyyymmddTHHMMSS-yyyymmddTHHMMSS]_V[version].cdf
Granularity	1 file per SBM1 event
Expected data volume	variable

Data organization

Table below gives the name, data type, units and description of the zVariables stored in the CDF file.

In the the “TYPE” column, the expected size (i.e., number of elements along each dimension) of the zVariable for a CDF record is given between bracket (e.g., “[1]”).

Non-record-variant zVariables are indicated by a “(NRV)” additional label in the “TYPE” column.

NAME	TYPE	UNIT	DESCRIPTION
Epoch	CDF_TIME_TT2000[1]	ns	Epoch time of the record
ACQUISITION_TIME	CDF_UINT4[2]	unitless	CCSDS CUC Acquisition time as returned in TM packets
QUALITY_FLAG	CDF_UINT1[1]	unitless	Flag to indicate the quality of the data
COMMON_BIA_STATUS_FLAG	CDF_UINT1[1]	unitless	LFR common parameters and BIAS status info relevancy flag
QUALITY_BITMASK	CDF_UINT2[1]	unitless	Additional flag to add quality information
SURVEY_MODE	CDF_UINT1[1]	unitless	LFR survey mode
FREQ	CDF_UINT1[1]	unitless	Used to determine the frequency. 1 for F1
BIAS_MODE_MUX_SET	CDF_UINT1[1]	unitless	Copy of multiplexer setting
BIAS_MODE_HV_ENABLED	CDF_UINT1[1]	unitless	Copy of enable/disable HV (+- 100V).
BIAS_MODE_BIAS1_ENABLED	CDF_UINT1[1]	unitless	Copy of enable/disable BIAS 1.
BIAS_MODE_BIAS2_ENABLED	CDF_UINT1[1]	unitless	Copy of enable/disable BIAS 2.
BIAS_MODE_BIAS3_ENABLED	CDF_UINT1[1]	unitless	Copy of enable/disable BIAS 2.
BIAS_ON_OFF	CDF_UINT1[1]	unitless	Copy of BIAS status
BW	CDF_UINT1[1]	unitless	BIAS Works/BIAS Fails configuration
SP0	CDF_UINT1[1]	unitless	Shaping of electrical data
SP1	CDF_UINT1[1]	unitless	Shaping of electrical data
R0	CDF_UINT1[1]	unitless	Rooting of electrical data
R1	CDF_UINT1[1]	unitless	Rooting of electrical data
R2	CDF_UINT1[1]	unitless	Rooting of electrical data
V	CDF_INT2[1]	count	Potential value
E	CDF_INT2[2]	count	Electric field
B	CDF_INT2[3]	count	Magnetic field
ACQUISITION_TIME_UNITS	CDF_CHAR[2]	unitless	Label for ACQUISITION_TIME UNIT_PTR attribute
ACQUISITION_TIME_LABEL	CDF_CHAR[2]	unitless	Label for ACQUISITION_TIME
SCET	CDF_REAL8[1]	Ticks	Spaceraft Elapsed Time
SYNCHRO_FLAG	CDF_UINT1[1]	unitless	Time synchronization flag

Rules of use

Please read the text of the Rules_of_use global attribute in the CDF files.

Caveats and known issues

Table below gives the list of main known issues and the actions taken to mitigate them.

Please read the CAVEATS global attribute entries and the QUALITY_FLAG zVariable values in the CDF files to be aware of the possible issues and limitations concerning data.

ISSUE	MITIGATION(S)

Release notes

See MODS global attribute in the CDF files for an history of the data modifications.

Authors

Thomas Chust, Rodrigue Piberne, Bruno Katra, Alexis Jeandet and Véronique Bouzid (retired).

References

The Solar Orbiter Radio and Plasma Waves (RPW) instrument, Maksimovic et al., A&A, 2020 (https://doi.org/10.1051/0004-6361/201936214)
Metadata Definition for Solar Orbiter Science Data, Helen R. Middleton, (https://s2e2.cosmos.esa.int/confluence/display/SOSP/Metadata+Definition+for+Solar+Orbiter+Science+Data)
RPW Data Product Description Document (DPDD) (https://www.cosmos.esa.int/documents/3689933/11863517/ROC-PRO-DAT-NTT-00075-LES_Iss01_Rev03_%28RPW-Data-Product-Description-Document%29.pdf/02ec3da1-0acd-cf25-7cc1-0ac51f9f5bf4?t=1679312094778)
NASA CDF Web portal (https://cdf.gsfc.nasa.gov/)

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solo_L1_rpw-lfr-sbm1-bp2

Diane Berard — 2026-08-24T15:48:44Z

solo_L1_rpw-lfr-sbm1-bp2 data provides uncalibrated Basic Parameters set 2 (BP2) in SBM1 mode, computed for the frequency range F0 of the LFR analyser of the Solar Orbiter/RPW instrument.

Link to the data repository

Data files are available from the Solar Orbiter Archive home page.

Copies of the files are also stored in the LIRA local data repository.

Data product overview

The BP2s are just a compression of the frequency averaged ASM.

Data have been produced following the method described in [RD?].

Data product key facts
Type of data	Spectrum
Physical quantity	Basic Parameters set 2 (auto/cross correlations of the EM signal)
Units	Unitless
Frequency range	1776 to 9840 Hz
Frequency number	22
Frequency step	384Hz
Frequency scale	Linear
Time resolution	0.25 second
Data format	CDF
File name	solo_L1_rpw-lfr-sbm1-bp2_[yyyymmddTHHMMSS-yyyymmddTHHMMSS]_V[version].cdf
Granularity	1 file per SBM1 event
Expected data volume	variable

Data organization

Table below gives the name, data type, units and description of the zVariables stored in the CDF file.

In the the “TYPE” column, the expected size (i.e., number of elements along each dimension) of the zVariable for a CDF record is given between bracket (e.g., “[1]”).

Non-record-variant zVariables are indicated by a “(NRV)” additional label in the “TYPE” column.

NAME	TYPE	UNIT	DESCRIPTION
Epoch	CDF_TIME_TT2000[1]	ns	Epoch time of the record
ACQUISITION_TIME	CDF_UINT4[2]		CCSDS CUC Acquisition time as returned in TM packets
QUALITY_FLAG	CDF_UINT1[1]		Flag to indicate the quality of the data
COMMON_BIA_STATUS_FLAG	CDF_UINT1[1]		LFR common parameters and BIAS status info relevancy flag
QUALITY_BITMASK	CDF_UINT1[1]		Additional flag to add quality information
SURVEY_MODE	CDF_UINT1[1]		LFR survey mode
BIAS_MODE_MUX_SET	CDF_UINT1[1]		Copy of multiplexer setting
BIAS_MODE_HV_ENABLED	CDF_UINT1[1]		Copy of enable/disable HV (+- 100V).
BIAS_MODE_BIAS1_ENABLED	CDF_UINT1[1]		Copy of enable/disable BIAS 1.
BIAS_MODE_BIAS2_ENABLED	CDF_UINT1[1]		Copy of enable/disable BIAS 2.
BIAS_MODE_BIAS3_ENABLED	CDF_UINT1[1]		Copy of enable/disable BIAS 2.
BIAS_ON_OFF	CDF_UINT1[1]		Copy of BIAS status
BW	CDF_UINT1[1]		BIAS Works/BIAS Fails configuration
SP0	CDF_UINT1[1]		Shaping of electrical data
SP1	CDF_UINT1[1]		Shaping of electrical data
R0	CDF_UINT1[1]		Rooting of electrical data
R1	CDF_UINT1[1]		Rooting of electrical data
R2	CDF_UINT1[1]		Rooting of electrical data
BP2_CNT	CDF_UINT1[1]		Number of BP2 sets read for a given sampling frequency (F0, F1 or F2).
AUTO	CDF_REAL8[22,5]		Component of autovariances from the EM data stream
CROSS_RE	CDF_REAL4[22,10]		Real part of complex cross correlations from the EM data
CROSS_IM	CDF_REAL4[22,10]		Imaginary part of complex cross correlations from the EM data
ACQUISITION_TIME_UNITS	CDF_CHAR[2]		Label for ACQUISITION_TIME UNIT_PTR attribute
ACQUISITION_TIME_LABEL	CDF_CHAR[2]		Label for ACQUISITION_TIME
SCET	CDF_REAL8[1]	Ticks	Spaceraft Elapsed Time
SYNCHRO_FLAG	CDF_UINT1[1]		Flag to indicate if the local time is synchronized with the RPW DPU clock or not. Possible values: synchronized=0, not synchronized=1. This flag is extracted from ACQUISITION_TIME in L0 packets, it is the MSB of the CUC time.

Rules of use

Please read the text of the Rules_of_use global attribute in the CDF files.

Caveats and known issues

Table below gives the list of main known issues and the actions taken to mitigate them.

Please read the CAVEATS global attribute entries and the QUALITY_FLAG zVariable values in the CDF files to be aware of the possible issues and limitations concerning data.

ISSUE	MITIGATION(S)

Release notes

See MODS global attribute in the CDF files for an history of the data modifications.

Authors

Thomas Chust, Rodrigue Piberne, Bruno Katra, Alexis Jeandet and Véronique Bouzid (retired).

References

The Solar Orbiter Radio and Plasma Waves (RPW) instrument, Maksimovic et al., A&A, 2020 (https://doi.org/10.1051/0004-6361/201936214)
Metadata Definition for Solar Orbiter Science Data, Helen R. Middleton, (https://s2e2.cosmos.esa.int/confluence/display/SOSP/Metadata+Definition+for+Solar+Orbiter+Science+Data)
RPW Data Product Description Document (DPDD) (https://www.cosmos.esa.int/documents/3689933/11863517/ROC-PRO-DAT-NTT-00075-LES_Iss01_Rev03_%28RPW-Data-Product-Description-Document%29.pdf/02ec3da1-0acd-cf25-7cc1-0ac51f9f5bf4?t=1679312094778)
NASA CDF Web portal (https://cdf.gsfc.nasa.gov/)

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solo_L1_rpw-lfr-sbm1-bp1

Diane Berard — 2026-08-24T15:45:57Z

solo_L1_rpw-lfr-sbm1-bp1 data provides uncalibrated Basic Parameters set 1 (BP1) in SBM1 mode, computed for the frequency range F0 of the LFR analyser of the Solar Orbiter/RPW instrument.

Link to the data repository

Data files are available from the Solar Orbiter Archive home page.

Copies of the files are also stored in the LIRA local data repository.

Data product overview

Data have been produced following the method described in [RD?].

Data product key facts
Type of data	Spectrum
Physical quantity	Basic Parameters Set 1 (wave spectral quantities)
Units	Unitless
Frequency range	1776 to 9840 Hz
Frequency number	22
Frequency step	384Hz
Frequency scale	Linear
Time resolution	0.25 second
Data format	CDF
File name	solo_L1_rpw-lfr-sbm1-bp1_[yyyymmddTHHMMSS-yyyymmddTHHMMSS]_V[version].cdf
Granularity	1 file per SBM1 event
Expected data volume	variable

Data organization

Table below gives the name, data type, units and description of the zVariables stored in the CDF file.

In the the “TYPE” column, the expected size (i.e., number of elements along each dimension) of the zVariable for a CDF record is given between bracket (e.g., “[1]”).

Non-record-variant zVariables are indicated by a “(NRV)” additional label in the “TYPE” column.

NAME	TYPE	UNIT	DESCRIPTION
Epoch	CDF_TIME_TT2000[1]	ns	Epoch time of the record
ACQUISITION_TIME	CDF_UINT4[2]		CCSDS CUC Acquisition time as returned in TM packets
QUALITY_FLAG	CDF_UINT1[1]		Flag to indicate the quality of the data
COMMON_BIA_STATUS_FLAG	CDF_UINT1[1]		LFR common parameters and BIAS status info relevancy flag
QUALITY_BITMASK	CDF_UINT1[1]		Additional flag to add quality information
SURVEY_MODE	CDF_UINT1[1]		LFR survey mode
BIAS_MODE_MUX_SET	CDF_UINT1[1]		Copy of multiplexer setting
BIAS_MODE_HV_ENABLED	CDF_UINT1[1]		Copy of enable/disable HV (+- 100V).
BIAS_MODE_BIAS1_ENABLED	CDF_UINT1[1]		Copy of enable/disable BIAS 1.
BIAS_MODE_BIAS2_ENABLED	CDF_UINT1[1]		Copy of enable/disable BIAS 2.
BIAS_MODE_BIAS3_ENABLED	CDF_UINT1[1]		Copy of enable/disable BIAS 2.
BIAS_ON_OFF	CDF_UINT1[1]		Copy of BIAS status
BW	CDF_UINT1[1]		BIAS Works/BIAS Fails configuration
SP0	CDF_UINT1[1]		Shaping of electrical data
SP1	CDF_UINT1[1]		Shaping of electrical data
R0	CDF_UINT1[1]		Rooting of electrical data
R1	CDF_UINT1[1]		Rooting of electrical data
R2	CDF_UINT1[1]		Rooting of electrical data
BP1_CNT	CDF_UINT1[1]		Number of BP1 sets read for a given sampling frequency (F0, F1 or F2).
PE	CDF_REAL8[22]		Spectral power of E field
PB	CDF_REAL8[22]		Spectral power of B field
NVEC_V0	CDF_REAL4[22]		Component 0 of wave normal vector from magnetic field
NVEC_V1	CDF_REAL4[22]		Component 1 of wave normal vector from magnetic field
NVEC_V2	CDF_UINT1[22]		Sign of component 2 of wave normal vector from magnetic field
ELLIP	CDF_REAL8[22]		Wave ellipticity from magnetic field
DOP	CDF_UINT1[22]		Degree of polarization from magnetic field
SX_REA	CDF_REAL8[22]		Real parts of the X component of the Poynting vector
SX_ARG	CDF_UINT1[22]		Argument bit = 1 if	Im(SX)	>	Re(SX)	else 0
VPHI_REA	CDF_REAL8[22]		Phase velocities estimated from the X projection of Maxwell-Faraday equation
VPHI_ARG	CDF_UINT1[22]		Argument bit = 1 if	Im(SX)	>	Re(SX)	else 0
ACQUISITION_TIME_UNITS	CDF_CHAR[2]		Label for ACQUISITION_TIME UNIT_PTR attribute
ACQUISITION_TIME_LABEL	CDF_CHAR[2]		Label for ACQUISITION_TIME
SCET	CDF_REAL8[1]	Ticks	Spaceraft Elapsed Time
SYNCHRO_FLAG	CDF_UINT1[1]		Flag to indicate if the local time is synchronized with the RPW DPU clock or not. Possible values: synchronized=0, not synchronized=1. This flag is extracted from ACQUISITION_TIME in L0 packets, it is the MSB of the CUC time.

Rules of use

Please read the text of the Rules_of_use global attribute in the CDF files.

Caveats and known issues

Table below gives the list of main known issues and the actions taken to mitigate them.

Please read the CAVEATS global attribute entries and the QUALITY_FLAG zVariable values in the CDF files to be aware of the possible issues and limitations concerning data.

ISSUE	MITIGATION(S)

Release notes

See MODS global attribute in the CDF files for an history of the data modifications.

Authors

Thomas Chust, Rodrigue Piberne, Bruno Katra, Alexis Jeandet and Véronique Bouzid (retired).

References

The Solar Orbiter Radio and Plasma Waves (RPW) instrument, Maksimovic et al., A&A, 2020 (https://doi.org/10.1051/0004-6361/201936214)
Metadata Definition for Solar Orbiter Science Data, Helen R. Middleton, (https://s2e2.cosmos.esa.int/confluence/display/SOSP/Metadata+Definition+for+Solar+Orbiter+Science+Data)
RPW Data Product Description Document (DPDD) (https://www.cosmos.esa.int/documents/3689933/11863517/ROC-PRO-DAT-NTT-00075-LES_Iss01_Rev03_%28RPW-Data-Product-Description-Document%29.pdf/02ec3da1-0acd-cf25-7cc1-0ac51f9f5bf4?t=1679312094778)
NASA CDF Web portal (https://cdf.gsfc.nasa.gov/)

Return to Data products description mainpage

solo_L1_rpw-tds-sbm1-rswf

Xavier Bonnin — 2026-08-24T14:55:55Z

The data product solo_L1_rpw-tds-sbm1-rswf provides Level 1 uncalibrated electric (E-field) and magnetic (B-field) waveform snapshots measured during the Selected Burst Mode 1 (SBM1) targeting shock crossings.

Link to the data repository

Data files are available from the Solar Orbiter Archive home page.

Copies of the files are also stored in the LIRA local data repository.

Data product overview

Snapshots feature variable lengths up to 65k samples and are routinely sampled at 262 kHz or 524 kHz.

Data product key facts
Type of data	Time series
Physical quantity	E- and B-field waveforms
Units	Unitless
Time resolution	Variable
Data format	CDF
File name	solo_L1_rpw-tds-sbm1-rswf_[yyyymmddTHHmmSS]-[yyyymmddTHHMMSS]_V[version].cdf
Granularity	1 file per SBM1 event
Expected data volume	Variable

Data organization

NAME	TYPE	UNITS	DESCRIPTION
Epoch	CDF_TIME_TT2000	ns	Default reference time representing the first sample.
ACQUISITION_TIME	CDF_UINT4[2]	s, s / 65536	CCSDS CUC format coarse and fine time parts of the first sample.
QUALITY_FLAG	CDF_UINT1	unitless	Quality flag tracking data reliability.
QUALITY_BITMASK	CDF_UINT2	unitless	Bitmask flag highlighting context information at the receiver level.
SURVEY_MODE	CDF_UINT1	unitless	Flag indicating SURVEY_BURST (=1) or SURVEY_NORMAL (=0) mode.
BIA_STATUS_INFO	CDF_UINT1[6]	unitless	BIAS instrument status byte.
SAMPLING_RATE	CDF_REAL4	Hz	TDS actual hardware sampling rate in Hz (262 or 524 kHz).
HF_DATA_ARTEFACTS	CDF_UINT1[5]	unitless	Bitmask pointing out high-frequency data overflows.
FILTER_COEFS	CDF_UINT1	unitless	Index identifier of the FIR filter coefficients used.
RPW_STATUS_INFO	CDF_UINT1[8]	unitless	Overall instrument status bitmask forwarded from the DPU.
INPUT_CONFIG	CDF_UINT4	unitless	Direct bitmask of the TDS analog input setup.
SNAPSHOT_SEQ_NR	CDF_UINT2	unitless	Sequential tracking integer incremented with every snapshot.
ACQUISITION_TIME_UNITS	CDF_CHAR[2] (NRV)	unitless	Metadata units label for ACQUISITION_TIME.
ACQUISITION_TIME_LABEL	CDF_CHAR[2] (NRV)	unitless	Metadata tracking description for CUC components.
CHANNEL_STATUS_INFO	CDF_UINT1[4]	unitless	Identification mapping code for active snapshot lines.
SAMPS_PER_CH	CDF_UINT4	unitless	Total number of valid samples contained per channel.
WAVEFORM_DATA	CDF_INT2[4, 65536]	Count	Uncalibrated E-field and B-field waveform snapshot matrix.
CHANNEL_LABEL	CDF_CHAR[4] (NRV)	unitless	Human-readable axes labels ("TDS CH1" to "TDS CH4").
WAVEFORM_LABEL	CDF_CHAR[4] (NRV)	unitless	Structural data tracking labels.
SCET	CDF_REAL8	Ticks	Spacecraft Elapsed Time of the onboard clock master.
SYNCHRO_FLAG	CDF_UINT1	unitless	Clock alignment flag (0=synchronized, 1=not synchronized).
QUALITY_FACT	CDF_UINT2	unitless	Quality evaluation metric factor assigned to the downlinked packet.
DOWNLINK_INFO	CDF_UINT1[2]	unitless	Combined onboard selection code and transmission algorithm identifiers.

Rules of use

Please read the text of the Rules_of_use global attribute in the CDF files.

Caveats and known issues

Table below gives the list of main known issues and the actions taken to mitigate them.

Please read the CAVEATS global attribute entries and the QUALITY_FLAG zVariable values in the CDF files to be aware of the possible issues and limitations concerning data.

ISSUE	MITIGATION(S)
RPW MY (3) electrical antenna signal was lost intermittently between November 2023 and February 28, 2024. TDS acquisitions were impacted when measurements were performed on this antenna.	TDS receiver was switched into the monopole mode (SE1) configuration.

Release notes

See MODS global attribute in the CDF files for an history of the data modifications.

Authors

David Pisa, and Jan Soucek.

References

The Solar Orbiter Radio and Plasma Waves (RPW) instrument, Maksimovic et al., A&A, 2020 (https://doi.org/10.1051/0004-6361/201936214)
Metadata Definition for Solar Orbiter Science Data, Helen R. Middleton, (https://s2e2.cosmos.esa.int/confluence/display/SOSP/Metadata+Definition+for+Solar+Orbiter+Science+Data)
RPW Data Product Description Document (DPDD) (https://www.cosmos.esa.int/documents/3689933/11863517/ROC-PRO-DAT-NTT-00075-LES_Iss01_Rev03_%28RPW-Data-Product-Description-Document%29.pdf/02ec3da1-0acd-cf25-7cc1-0ac51f9f5bf4?t=1679312094778)
NASA CDF Web portal (https://cdf.gsfc.nasa.gov/)

Return to Data products description mainpage

solo_L1_rpw-tds-surv-hist2d

Xavier Bonnin — 2026-08-24T14:51:51Z

The data product solo_L1_rpw-tds-surv-hist2d provides TDS on-board 2D histograms, measured in SURVEY NORMAL and BURST modes.

Link to the data repository

Data files are available from the Solar Orbiter Archive home page.

Copies of the files are also stored in the LIRA local data repository.

Data product overview

As a part of the on-board processing described in the section 2.1, TDS can also build on-board histograms from wave, dust and snapshot parameters calculated by the algorithm. The parameters that can be included in the statistics include peak and RMS amplitude of snapshots and of identified waves, wave frequency, and the amplitude and width of identified dust spikes. It is possible to choose via telecommand up to 4 parameters to include in histograms.

Data product key facts
Type of data	2D array
Physical quantity	2D histograms derived from wave, dust and snapshot parameters
Units	Variable
Time resolution	0.1 sec to 5.4 seconds
Data format	CDF
File name	solo_L1_rpw-tds-surv-hist2d_[YYYYMMDD]_V[version].cdf
Granularity	1 file per day
Expected data volume	80 kBytes per file

Data organization

Each CDF record in the file contains one histogram from the TDS on board statistics accumulated over time in seconds indicated in HIST2D_COL_TIME variable. The statistic parameter is stored in HIST2D_PARAM and HIST2D_PARAM_LABEL. The numbers of histogram bins is given by HIST2D_BINS1 and HIST2D_BINS2. Histogram axes are stored in HIST2D_AXIS1 and HIST2D_AXIS2.

The Epoch time (CDF_TIME_TT2000) of each record represents the acquisition time of the first data sample in the accumulation time interval.

Missing or invalid data samples are represented using FILLVAL.

NAME	TYPE	UNITS	DESCRIPTION
Epoch	CDF_TIME_TT2000	ns	Primary time used as a reference in the file. Corresponds to the time of the first sample of the snapshot.
ACQUISITION_TIME	CDF_UINT4[2]	s, s / 65536	CCSDS CUC format coarse and fine time parts of the first sample.
ACQUISITION_TIME_LABEL	CDF_CHAR[2]		Label for ACQUISITION_TIME.
ACQUISITION_TIME_UNITS	CDF_CHAR[2]		Units for ACQUISITION_TIME.
CHANNEL_STATUS_INFO	CDF_UINT1[4]	unitless	Status of signal channels in the snapshot (0=OFF, 1=ON)
CHANNEL_LABEL	CDF_CHAR[4]		Human-readable axes labels ("WF CH1" to "WF CH4").
SCET	CDF_REAL8	Ticks	Spacecraft Elapsed Time
SYNCHRO_FLAG	CDF_UINT1	unitless	Flag to indicate if the local time is synchronized with the RPW DPU clock or not. Possible values: synchronized=0 not synchronized=1. This flag is extracted from ACQUISITION_TIME in L0 packets, it is the MSB of the CUC time.
QUALITY_FLAG	CDF_UINT1	unitless	Flag to indicate the quality of the data. 0 – Bad data; 1 – Known problems, use at your own risk; 2 – Survey data, possibly not publication-quality; 3 Good for publication, subject to PI approval; 4 - Excellent data.
QUALITY_BITMASK	CDF_UINT2	unitless	Flag to indicate any context information or status at the receiver or experiment level. Forwarded from L1 data.
QUALITY_FACT	CDF_UINT2	unitless	Flag to indicate any context information or status at the receiver or experiment level.
SURVEY_MODE	CDF_UINT1	unitless	Flag to indicate if the receiver in the SURVEY_BURST (=1) or SURVEY_NORMAL (=0) mode.
BIA_STATUS_INFO	CDF_UINT1[6]	unitless	BIAS status byte
SAMPLING_RATE	CDF_REAL4	Hz	TDS actual hardware sampling rate in Hz (262 or 524 kHz).
RPW_STATUS_INFO	CDF_UINT1[8]	unitless	RPW status (bitmask - received from DPU)
INPUT_CONFIG	CDF_UINT4	unitless	Input TDS configuration
SNAPSHOT_LEN	CDF_UINT1	unitless	Length (in samples) of each snapshot processed by the TDS SW to build the statistics
HIST2D_ID	CDF_UINT1	unitless	An ID number of the histogram (1 or 2) indicating which of the two possible configured histograms is contained in the packet
HIST2D_PARAM	CDF_UINT1	unitless	The parameter used to build this histogram. Equal to the CP_TDS_N_2D_HISTx_TYPE Setting.
HIST2D_AXIS1	CDF_UINT1	unitless	Axis1 corresponding to this histogram
HIST2D_AXIS2	CDF_UINT1	unitless	Axis2 corresponding to this histogram
HIST2D_COL_TIME	CDF_UINT2	unitless	The duration of the time period (in seconds) over which this histogram has been built.
HIST2D_TOT_PTS	CDF_UINT2	unitless	Total number of valid points to build the histogram.
HIST2D_BINS1	CDF_UINT2	unitless	Number of X bins in the histogram. Determines the length of the packet.
HIST2D_BINS2	CDF_UINT2	unitless	Number of Y bins in the histogram. Determines the length of the packet.
HIST2D_COUNTS	CDF_UINT2[128, 128]	unitless	Counts of each bin in the histogram.

Rules of use

Please read the text of the Rules_of_use global attribute in the CDF files.

Caveats and known issues

Table below gives the list of main known issues and the actions taken to mitigate them.

Please read the CAVEATS global attribute entries and the QUALITY_FLAG zVariable values in the CDF files to be aware of the possible issues and limitations concerning data.

ISSUE	MITIGATION(S)
RPW MY (3) electrical antenna signal was lost intermittently between November 2023 and February 28, 2024. TDS acquisitions were impacted when measurements were performed on this antenna.	TDS receiver was switched into the monopole mode (SE1) configuration.

Release notes

See MODS global attribute in the CDF files for an history of the data modifications.

Authors

David Pisa, and Jan Soucek.

References

The Solar Orbiter Radio and Plasma Waves (RPW) instrument, Maksimovic et al., A&A, 2020 (https://doi.org/10.1051/0004-6361/201936214)
Metadata Definition for Solar Orbiter Science Data, Helen R. Middleton, (https://s2e2.cosmos.esa.int/confluence/display/SOSP/Metadata+Definition+for+Solar+Orbiter+Science+Data)
RPW Data Product Description Document (DPDD) (https://www.cosmos.esa.int/documents/3689933/11863517/ROC-PRO-DAT-NTT-00075-LES_Iss01_Rev03_%28RPW-Data-Product-Description-Document%29.pdf/02ec3da1-0acd-cf25-7cc1-0ac51f9f5bf4?t=1679312094778)

NASA CDF Web portal (https://cdf.gsfc.nasa.gov/)

Return to Data products description mainpage

solo_L1_rpw-tds-surv-hist1d

Xavier Bonnin — 2026-08-24T14:50:09Z

The data product solo_L1_rpw-tds-surv-hist1d provides TDS on-board 1D histograms, measured in SURVEY NORMAL and BURST modes.

Link to the data repository

Data files are available from the Solar Orbiter Archive home page.

Copies of the files are also stored in the LIRA local data repository.

Data product overview

As a part of the on board processing described in the section 2.1, TDS can also build on-board histograms from wave, dust and snapshot parameters calculated by the algorithm. The parameters that can be included in the statistics include peak and RMS amplitude of snapshots and of identified waves, wave frequency, and the amplitude and width of identified dust spikes. It is possible to choose via telecommand up to 4 parameters to include in histograms.

Data product key facts
Type of data	1D array
Physical quantity	1D histograms derived from wave, dust and snapshot parameters
Units	Variable
Time resolution	0.1 sec to 5.4 seconds
Data format	CDF
File name	solo_L1_rpw-tds-surv-hist1d_[YYYYMMDD]_V[version].cdf
Granularity	1 file per day
Expected data volume	90 kBytes per file

Data organization

Each CDF record in the file contains one histogram from the TDS on board statistics accumulated over time in seconds indicated in HIST1D_COL_TIME variable. The statistic parameter is stored in HIST1D_PARAM and HIST1D_PARAM_LABEL. The number of histogram bins is given by HIST1D_BINS and histogram axis is stored in HIST1D_AXIS.

The Epoch time (CDF_TIME_TT2000) of each record represents the acquisition time of the first data sample in the accumulation time interval.

Missing or invalid data samples are represented using FILLVAL

NAME	TYPE	UNITS	DESCRIPTION
Epoch	CDF_TIME_TT2000	ns	Primary time used as a reference in the file. Corresponds to the time of the first sample of the snapshot.
ACQUISITION_TIME	CDF_UINT4[2]	s, s / 65536	CCSDS CUC format coarse and fine time parts of the first sample.
ACQUISITION_TIME_LABEL	CDF_CHAR[2]		Label for ACQUISITION_TIME.
ACQUISITION_TIME_UNITS	CDF_CHAR[2]		Units for ACQUISITION_TIME.
CHANNEL_STATUS_INFO	CDF_UINT1[4]	unitless	Status of signal channels in the snapshot (0=OFF, 1=ON)
CHANNEL_LABEL	CDF_CHAR[4]		Human-readable axes labels ("WF CH1" to "WF CH4").
SCET	CDF_REAL8	Ticks	Spacecraft Elapsed Time
SYNCHRO_FLAG	CDF_UINT1	unitless	Flag to indicate if the local time is synchronized with the RPW DPU clock or not. Possible values: synchronized=0 not synchronized=1. This flag is extracted from ACQUISITION_TIME in L0 packets, it is the MSB of the CUC time.
QUALITY_FLAG	CDF_UINT1	unitless	Flag to indicate the quality of the data. 0 – Bad data; 1 – Known problems, use at your own risk; 2 – Survey data, possibly not publication-quality; 3 Good for publication, subject to PI approval; 4 - Excellent data.
QUALITY_BITMASK	CDF_UINT2	unitless	Flag to indicate any context information or status at the receiver or experiment level. Forwarded from L1 data.
QUALITY_FACT	CDF_UINT2	unitless	Flag to indicate any context information or status at the receiver or experiment level.
SURVEY_MODE	CDF_UINT1	unitless	Flag to indicate if the receiver in the SURVEY_BURST (=1) or SURVEY_NORMAL (=0) mode.
BIA_STATUS_INFO	CDF_UINT1[6]	unitless	BIAS status byte
SAMPLING_RATE	CDF_REAL4	Hz	TDS actual hardware sampling rate in Hz (262 or 524 kHz).
RPW_STATUS_INFO	CDF_UINT1[8]	unitless	RPW status (bitmask - received from DPU)
INPUT_CONFIG	CDF_UINT4	unitless	Input TDS configuration
SNAPSHOT_LEN	CDF_UINT1	unitless	Length (in samples) of each snapshot processed by the TDS SW to build the statistics
HIST1D_ID	CDF_UINT1	unitless	An ID number of the histogram (1..4) indicating which of the four possible configured
HIST1D_PARAM	CDF_UINT1	unitless	The parameter used to build this histogram. Equal to the CP_TDS_N_1D_HISTx_TYPE Setting.
HIST1D_AXIS	CDF_UINT1	unitless	Axis corresponding to this histogram
HIST1D_COL_TIME	CDF_UINT2	unitless	The duration of the time period (in seconds) over which this histogram has been built.
HIST1D_OUT	CDF_UINT2	unitless	Number of out-of-range values which were out of the limit specified by the current axis configuration.
HIST1D_BINS	CDF_UINT2	unitless	Number of bins in the histogram. Determines the length of the packet.
HIST1D_COUNTS	CDF_UINT2	unitless	Counts of each bin in the histogram.

Rules of use

Please read the text of the Rules_of_use global attribute in the CDF files.

Caveats and known issues

Table below gives the list of main known issues and the actions taken to mitigate them.

Please read the CAVEATS global attribute entries and the QUALITY_FLAG zVariable values in the CDF files to be aware of the possible issues and limitations concerning data.

ISSUE	MITIGATION(S)
RPW MY (3) electrical antenna signal was lost intermittently between November 2023 and February 28, 2024. TDS acquisitions were impacted when measurements were performed on this antenna.	TDS receiver was switched into the monopole mode (SE1) configuration.

Release notes

See MODS global attribute in the CDF files for an history of the data modifications.

Authors

David Pisa, and Jan Soucek.

References

The Solar Orbiter Radio and Plasma Waves (RPW) instrument, Maksimovic et al., A&A, 2020 (https://doi.org/10.1051/0004-6361/201936214)
Metadata Definition for Solar Orbiter Science Data, Helen R. Middleton, (https://s2e2.cosmos.esa.int/confluence/display/SOSP/Metadata+Definition+for+Solar+Orbiter+Science+Data)
RPW Data Product Description Document (DPDD) (https://www.cosmos.esa.int/documents/3689933/11863517/ROC-PRO-DAT-NTT-00075-LES_Iss01_Rev03_%28RPW-Data-Product-Description-Document%29.pdf/02ec3da1-0acd-cf25-7cc1-0ac51f9f5bf4?t=1679312094778)

NASA CDF Web portal (https://cdf.gsfc.nasa.gov/)

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