Content-Length: 50636 | pFad | https://doi.org/10.48322/k7kr-he12
PSP FIELDS Digital Fields Board, DFB, SCMvlfhg data:
The DFB is the low frequency, less than 75 kHz, component of the FIELDS experiment on the Parker Solar Probe spacecraft, see reference [1] below. For a full description of the FIELDS experiment, see reference [2]. For a description of the DFB, see reference [3].
DFB DC bandpass data consist of peak and average values of the absolute value of bandpassed time series waveform data over a time interval equal to the reporting cadence. The DC bandpass data have the peak response frequency of each bin reported in the metadata. The frequency response curves for these bins are given in [3].
The Level 2 data products contained in this data file have been calibrated for:
Calibrations for the DFB digital filter gains and analog filter gains have not been implemented as it was determined that these could not be applied accurately to single numerical values representing a broadband signal response and because all bins except the highest frequency bin have a flat gain response equal to one due to these filters. Calibrations for the FIELDS preamplifiers have not been implemented as the preamplifier response is flat and equal to one through the DFB frequency range. Corrections for plasma sheath impedance gain and antenna effective length have not been applied to voltage sensor signals. These corrections will be applied in the Level 3 DFB data products. Therefore, all voltage sensor quantities when present in these Level 2 data products are expressed by using units of Volts. Likewise, all magnetic field quantities when present in these Level 2 data products are expressed by using units of nanoTelsas.
The Level 2 data products contained in this data file are expressed in sensor coordinates: e.g. dV12, dV34 for voltage measurements and [u,v,w] for the searchcoil magnetometer.
The time resolution of the DFB DC bandpass filtered data can vary by multiples of 2^N. During encounter when PSP is within 0.25 AU of the Sun, the DFB DC bandpass filtered data cadence is typically 1 NYsecond [2]. Timestamps correspond to the center time of each window.
References:
Version:2.4.0
PSP FIELDS Digital Fields Board, DFB, SCMvlfhg data:
The DFB is the low frequency, less than 75 kHz, component of the FIELDS experiment on the Parker Solar Probe spacecraft, see reference [1] below. For a full description of the FIELDS experiment, see reference [2]. For a description of the DFB, see reference [3].
DFB DC bandpass data consist of peak and average values of the absolute value of bandpassed time series waveform data over a time interval equal to the reporting cadence. The DC bandpass data have the peak response frequency of each bin reported in the metadata. The frequency response curves for these bins are given in [3].
The Level 2 data products contained in this data file have been calibrated for:
Calibrations for the DFB digital filter gains and analog filter gains have not been implemented as it was determined that these could not be applied accurately to single numerical values representing a broadband signal response and because all bins except the highest frequency bin have a flat gain response equal to one due to these filters. Calibrations for the FIELDS preamplifiers have not been implemented as the preamplifier response is flat and equal to one through the DFB frequency range. Corrections for plasma sheath impedance gain and antenna effective length have not been applied to voltage sensor signals. These corrections will be applied in the Level 3 DFB data products. Therefore, all voltage sensor quantities when present in these Level 2 data products are expressed by using units of Volts. Likewise, all magnetic field quantities when present in these Level 2 data products are expressed by using units of nanoTelsas.
The Level 2 data products contained in this data file are expressed in sensor coordinates: e.g. dV12, dV34 for voltage measurements and [u,v,w] for the searchcoil magnetometer.
The time resolution of the DFB DC bandpass filtered data can vary by multiples of 2^N. During encounter when PSP is within 0.25 AU of the Sun, the DFB DC bandpass filtered data cadence is typically 1 NYsecond [2]. Timestamps correspond to the center time of each window.
References:
| Role | Person | StartDate | StopDate | Note | |
|---|---|---|---|---|---|
| 1. | PrincipalInvestigator | spase://SMWG/Person/Stuart.D.Bale | |||
| 2. | MetadataContact | spase://SMWG/Person/Robert.M.Candey | |||
| 3. | MetadataContact | spase://SMWG/Person/Lee.Frost.Bargatze |
Parker Solar Probe, PSP, FIELDS Instrument Suite Description: Bale, S.D., Goetz, K., Harvey, P.R. et al., The FIELDS Instrument Suite for Solar Probe Plus, Space Sci Rev 204, 49-82 (2016)
Parker Solar Probe, PSP, FIELDS Instrument Suite, Digital Fields Board, DFB, Description: Malaspina, D.M., Ergun, R.E., Bolton, M. et al., The Digital Fields Board for the FIELDS Instrument Suite on the Solar Probe Plus Mission: Analog and Digital signal Processing, JGR Space Physics, 121, 5088-5096 (2016)
Parker Solar Probe, PSP, FIELDS Instrument Suite, Data Description and Access, Spacecraft Operations Center, SOC, Web Site, UC Berkeley
Parker Solar Probe, PSP, FIELDS Instrument Suite, Rules of the Road, Spacecraft Operations Center, SOC, Web Site, UC Berkeley
Parker Solar Probe, PSP, Mission Overview, hosted by the Applied Physics Laboratory, Johns Hopkins University
PSP/FIELDS data release 5.1, on October 19, 2020, updates the dfb_dbm_scm and dfb_wf_dvdc data types to version 3. The new data versions contain significant corrections to the previously released data.
PSP/FIELDS data release 7, on April 4, 2021, includes data from PSP Encounter 6 (September 2020). All data up to and including December 2020 are now publicly available. For this data release, all DFB cross spectra have been reprocessed (with a new version number), and a subset of MAG data has also been reprocessed (with a new version number).
PSP/FIELDS data release 8, on June 28, 2021, includes survey data from PSP Encounter 7 and Venus Gravity assist 4. Several data sets have been updated in release 8.
PSP/FIELDS Data Release 9, on October 29, 2021, includes select data from Encounter 7 (perihelion January 2021), and survey and select data from Encounter 8 (perihelion April 2021).
PSP/FIELDS Data Release 10, on February 7, 2022, includes survey and select data from Encounter 9 (perihelion August 2021).
PSP/FIELDS Data Release 11, on April 25, 2022, includes survey and select data from Encounter 10 (perihelion November 2021), and survey and select data from Venus Gravity Assist 5 (October 2021).
Access to Data in CDF Format via ftp from SPDF
Access to Data in CDF Format via http from SPDF
Access to ASCII, CDF, and Plots via NASA/GSFC CDAWeb
Web Service to this product using the HAPI interface.
Epoch Time Tags in Terrestrial Time 2000, TT2000, for Digital Fields Board, DFB, DC-coupled Searchcoil Magnetometer, SCM, Low Frequency, High Gain, v-component, Searchcoil Sensor coordinates Bandpass Filter Data
FIELDS Digital Fields Board, DFB, Frequency Bins for Bandpass Filter, BPF, DC-coupled Searchcoil Magnetometer, SCM, Low Frequency, High Gain, v-component, Searchcoil Sensor coordinates
FIELDS Digital Fields Board, DFB, Bandpass Filter, BPF, Average Power for DC-coupled Searchcoil Magnetometer, SCM, Low Frequency, High Gain, v-component, Searchcoil Sensor coordinates
FIELDS Digital Fields Board, DFB, Bandpass Filter, BPF, Peak Power for DC-coupled Searchcoil Magnetometer, SCM, Low Frequency, High Gain, v-component, Searchcoil Sensor coordinates
FIELDS Digital Fields Board, DFB, Saturation Flags for Bandpass Filter, BPF, DC-coupled Searchcoil Magnetometer, SCM, Low Frequency, High Gain, v-component, Searchcoil Sensor coordinates
Epoch Time Tags in Terrestrial Time 2000, TT2000, for FIELDS Instrument Suite Data Quality Flags
FIELDS Instrument Suite Data Quality Flags
Fetched URL: https://doi.org/10.48322/k7kr-he12
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