solo_L1_rpw-lfr-surv-swf data provides uncalibrated Snapshots WaveForm of electric (E) and magnetic (B) field components in survey normal and burst modes, of the LFR analyser of the Solar Orbiter/RPW instrument.

Reminder : F0 = 24576 Hz, F1 = 4096 Hz, F2 = 256 Hz and F3 = 16 Hz,

DOI: https://doi.org/10.57780/esa-3xcjd4w

Data product key facts
Type of data E & B components of Snapshot WaveForm
Intensity units count
Sampling Frequency 256 Hz (F2), 4096 Hz (F1) and 24576 Hz (F0)
Snapshot size 2048 points
Snapshot period ≥ 22s (nominally 300 s)
Data format CDF (3.9.0)
Granularity 1 file per day

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.

NAMETYPEUNITDESCRIPTION
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 snapshot : F0, F1 or F2 in order to use only one skeleton for the 3 normal mode swf 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
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] 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] Time synchronization flag

Rules of use

Please read the text of the Rules_of_use global attribute in the CDF files.
See also in https://rpw-datacenter.obspm.fr/spip.php?article4.

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 in the CDF files to be aware of the possible issues and limitations concerning data.

ISSUEMITIGATION(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
• RPW Data Product Description Document (DPDD)
• Observations of whistler mode waves by Solar Orbiter’s RPW Low Frequency Receiver (LFR): In-flight performance and first results, Chust et al, A&A, 2021, https://doi.org/10.1051/0004-6361/202140932
• NASA CDF Web portal

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