2.4.0 spase://NASA/NumericalData/ParkerSolarProbe/FIELDS/DFB/Level2/DC/Spectra/SCM/F/LowFrequency/HighGain/PT6.99054S PSP FIELDS Digital Fields Board (DFB) DC-coupled Searchcoil Magnetometer, SCM, Spectra, Low Frequency, High Gain, f-component, Sensor coordinates, Level 2 (L2), 6.99054 s Data https://doi.org/10.48322/gn7g-y542 2022-05-25T12:34:56.789 2021-05-08T21:30:02 PSP FIELDS: Initial SPASE XML resource description submission, metadata generated by LFB 2022-05-25T12:34:56.789 PSP FIELDS: Updated to SPASE Version 2.4.0, FIELDS data release InformationURLs added, FIELDS data quality flag definition updated, metadata generated by LFB PSP FIELDS Digital Fields Board, DFB, SCMflfhg 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 spectra data consist of power spectral densities as a function of frequency and time. These spectra are averaged over both frequency and time as described in [3]. The spectra have pseudo-logarithmically spaced frequency bins with the bin central frequencies reported in the metadata. The Level 2 data products contained in this data file have been calibrated for: * 1) The Hanning window used in the spectral calculation * 2) DFB in-band gain * 3) DFB analog filter gain response * 4) DFB digital filter gain response * 5) The search coil preamplifier response, when applicable * 6) The bandwidth of each spectral bin Note that compensation for the DFB digital filters will introduce a non-physical positively sloped power trend at high frequencies when the non-corrected signal is dominated by noise. This effect should be examined carefully when determining spectral slopes and features at the highest frequencies. 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 squared per Hertz. Likewise, all magnetic field quantities when present in these Level 2 data product are expressed by using units of nanoTesla squared per Hertz. The Level 2 data products contained in this data file are expressed in sensor coordinates: e.g. dV12, dV34 for voltage measurements. For solar orbits 1 and 2, the search coil magnetometer spectral data are rotated into a non-intuitive coordinate system with components [d,e,f]. For solar orbits 3 and beyond, the magnetic field spectral data are in expressed in search coil magnetometer sensor coordinates with components [u,v,w]. To rotate from [d,e,f] coordinates into [u,v,w] search coil sensor coordinates, use the following matrix, written in IDL notation, and the following equation: spectra_uvw_vector = R ## spectra_def_vector. R = [[ 0.46834856, -0.81336422 , 0.34509170] [ -0.66921924, -0.071546954, 0.73961249] [ -0.57688408, -0.57733845 , -0.57782790]] The time resolution of the DFB DC spectral data can vary by multiples of 2^N. During encounter when PSP is within 0.25 AU of the Sun, the DFB DC spectra data cadence is typically 30 NYseconds NYsecond [2]. Timestamps correspond to the center time of each window. References: * 1) Fox, N.J., Velli, M.C., Bale, S.D. et al., Space Sci Rev (2016) 204:7. https://doi.org/10.1007/s1121401502116 * 2) Bale, S.D., Goetz, K., Harvey, P.R. et al., Space Sci Rev (2016) 204:49. https://doi.org/10.1007/s1121401602445 * 3) Malaspina, D.M., Ergun, R.E., Bolton, M. et al., JGR Space Physics (2016), 121, 5088-5096. https://doi.org/10.1002/2016JA022344 Please acknowledge S.D. Bale for use of the Data Bale, Stuart D; Dudok de Wit, Thierry; Malaspina, David M; Goodrich, Katherine A; Pulupa, Marc; Quinn, Timothy; Schroeder, Peter 2020-01-01T00:00:00 NASA Space Physics Data Facility spase://SMWG/Person/Stuart.D.Bale PrincipalInvestigator spase://SMWG/Person/Robert.M.Candey MetadataContact spase://SMWG/Person/Lee.Frost.Bargatze MetadataContact PSP FIELDS Instrument Suite, Space Science Review Publication https://doi.org/10.1007/s11214-016-0244-5 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) PSP FIELDS Instrument Suite, Digital Fields Board, JGR Space Physics Publication https://doi.org/10.1002/2016JA022344 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) PSP FIELDS Instrument Suite, Data Description, SOC Web Site, UC Berkeley https://fields.ssl.berkeley.edu/data/ Parker Solar Probe, PSP, FIELDS Instrument Suite, Data Description and Access, Spacecraft Operations Center, SOC, Web Site, UC Berkeley PSP FIELDS Instrument Suite, Rules of the Road, SOC Web Site, UC Berkeley https://fields.ssl.berkeley.edu/rules/ Parker Solar Probe, PSP, FIELDS Instrument Suite, Rules of the Road, Spacecraft Operations Center, SOC, Web Site, UC Berkeley PSP Mission Overview, APL, JHU http://parkersolarprobe.jhuapl.edu/The-Mission/index.php Parker Solar Probe, PSP, Mission Overview, hosted by the Applied Physics Laboratory, Johns Hopkins University Release notes for PSP/FIELDS data release 5.1 https://fields.ssl.berkeley.edu/2020/10/release-notes-for-psp-fields-release-5-1/ 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. Release notes for PSP/FIELDS data release 7 https://fields.ssl.berkeley.edu/2021/04/release-notes-for-psp-fields-data-release-7/ 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). Release notes for PSP/FIELDS data release 8 https://fields.ssl.berkeley.edu/2021/06/release-notes-for-psp-fields-data-release-8/ 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. Release notes for PSP/FIELDS data release 9 https://fields.ssl.berkeley.edu/2021/10/release-notes-for-psp-fields-data-release-9/ 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). Release notes for PSP/FIELDS data release 10 https://fields.ssl.berkeley.edu/2022/02/release-notes-for-psp-fields-data-release-10/ PSP/FIELDS Data Release 10, on February 7, 2022, includes survey and select data from Encounter 9 (perihelion August 2021). Release notes for PSP/FIELDS data release 11 https://fields.ssl.berkeley.edu/2022/04/release-notes-for-psp-fields-data-release-11/ 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). spase://VSPO/NumericalData/ParkerSolarProbe/FIELDS/DFB/Level2/DC/Spectra/SCM/F/LowFrequency/HighGain/PT6.99054S spase://SMWG/Repository/NASA/GSFC/SPDF Online Open FTPS from SPDF (not with most browsers) ftps://spdf.gsfc.nasa.gov/pub/data/psp/fields/l2/dfb_dc_spec/scmflfhg/ Access to Data in CDF Format via ftp from SPDF HTTPS from SPDF https://spdf.gsfc.nasa.gov/pub/data/psp/fields/l2/dfb_dc_spec/scmflfhg/ Access to Data in CDF Format via http from SPDF CDAWeb https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=PSP_FLD_L2_DFB_DC_SPEC_SCMFLFHG&index=sp_phys PSP_FLD_L2_DFB_DC_SPEC_SCMFLFHG Access to ASCII, CDF, and Plots via NASA/GSFC CDAWeb CDF None Please acknowledge S.D. Bale. Please acknowledge the Data Providers and CDAWeb when using these Data. spase://SMWG/Repository/NASA/GSFC/SPDF Online Open CDAWeb HAPI Server https://cdaweb.gsfc.nasa.gov/hapi PSP_FLD_L2_DFB_DC_SPEC_SCMFLFHG Web Service to this product using the HAPI interface. CSV Please acknowledge S.D. Bale. Please acknowledge the Data Providers and CDAWeb when using these Data. Calibrated spase://SMWG/Instrument/ParkerSolarProbe/FIELDS/DFB spase://SMWG/Instrument/ParkerSolarProbe/FIELDS/SCM InstrumentStatus MagneticField 2018-10-06T00:00:00.000 -P6M PT6.99054S Heliosphere Heliosphere.Inner Heliosphere.NearEarth Sun.Corona Epoch Time, TT2000, DFB, DC Searchcoil Magnetometer, LF, HG, f-comp., Sensor coordinates Spectra epoch_dc_spec_SCMflfhg Epoch Time Tags in Terrestrial Time 2000, TT2000, for Digital Fields Board, DFB, DC-coupled Searchcoil Magnetometer, SCM, Low Frequency, High Gain, f-component, Searchcoil Sensor coordinates Spectra This Parameter exhibits an increasing Monotonic Progression PT6.99054S ns 1.0e-9>s epoch I22 6.3705981819904e+13 6.3706068219904e+13 2010-01-01T00:00:00.000000000 2050-01-01T00:00:00.000000000 9999-12-31T23:59:59.999999999 Temporal DFB, Spectra, Frequency Bins for DC Searchcoil Magnetometer, LF, HG, f-comp., Sensor coordinates Time Series defined by using: EPOCH_DC_SPEC_SCMFLFHG psp_fld_l2_dfb_dc_spec_SCMflfhg_frequency_bins FIELDS Digital Fields Board, DFB, Frequency Bins for Spectra, DC-coupled Searchcoil Magnetometer, SCM, Low Frequency, High Gain, f-component, Searchcoil Sensor coordinates PT6.99054S Hz frequency F8.1 LogScale 54 22.8882 4541.02 -1.0e+31 Array Other psp_fld_l2_dfb_dc_spec_SCMflfhg Time Series defined by using: EPOCH_DC_SPEC_SCMFLFHG psp_fld_l2_dfb_dc_spec_SCMflfhg L2 Power Spectra for channel SCMFLFHG PT6.99054S nT^2/Hz 1.0e-18>T^2/Hz Spectrogram PSD F12.3 LogScale 54 0.0 122880.0 -1.0e+31 Array Component.K CrossSpectrum Magnetic DFB, Spectra, Saturation Flags for DC Searchcoil Magnetometer, LF, HG, f-comp., Sensor coordinates Time Series defined by using: EPOCH_DC_SPEC_SCMFLFHG psp_fld_l2_dfb_dc_spec_SCMflfhg_saturation_flags FIELDS Digital Fields Board, DFB, Saturation Flags for Spectra, DC-coupled Spectra, Searchcoil Magnetometer, SCM, Low Frequency, High Gain, f-component, Searchcoil Sensor coordinates FIELDS Level 2 DFB Saturation Flag Values: 0=Spectra unsaturated, 1=Spectra saturated PT6.99054S TimeSeries I8 LinearScale 0 1 -32768 Scalar InstrumentMode Epoch Time, TT2000, FIELDS Data Quality Flags epoch_quality_flags Epoch Time Tags in Terrestrial Time 2000, TT2000, for FIELDS Instrument Suite Data Quality Flags This Parameter exhibits an increasing Monotonic Progression PT6.99054S ns 1.0e-9>s epoch I22 6.3705981819904e+13 6.3706068219904e+13 2010-01-01T00:00:00.000000000 2050-01-01T00:00:00.000000000 9999-12-31T23:59:59.999999999 Temporal FIELDS Data Quality Flags Time Series defined by using: EPOCH_QUALITY_FLAGS psp_fld_l2_quality_flags FIELDS Instrument Suite Data Quality Flags FIELDS quality flags: These flags are bitwise variables, meaning that multiple flags can be set simultaneously for a single time by adding flag values. Current flagged values are: * 1: FIELDS Antenna Bias Sweep * 2: PSP Thruster Firing * 4: SCM Calibration * 8: PSP Rotations for MAG Calibration, MAG Rolls * 16: FIELDS MAG Calibration Sequence * 32: SWEAP SPC in Electron Mode * 64: PSP Solar Limb Sensor, SLS, Test * 128: PSP Spacecraft is off Umbra Pointing, Heat Shield not pointed Sunward * 256: High Frequency Noise affecting RFS and TDS Receivers * 512: Antennas driven towards the FIELDS Power Supply Rails A value of zero corresponds to no set flags. Not all flags are relevant to all FIELDS data products, refer to notes in the CDF metadata and on the FIELDS Satellite Operations Center, SOC, website for information on how the various flags impact FIELDS data. For more information on the quality flags describing high frequency noise and antennas driven to the rails, see release notes for PSP/FIELDS releases 8 and 9. Additional flagged items may be added in the future. PT6.99054S flag I10 0 1023 4294967295 Scalar InstrumentMode Rotation Matrix, (d,e,f) to (u,v,w) scm_rotation_matrix_def_uvw Rotation Matrix from (d,e,f) to (u,v,w) Coordinates PT6.99054S F10.3 3 3 Array Other