! Skeleton table for the "psp_fld_l2_dfb_ac_spec_dv34hg_00000000_v01.cdf" CDF. ! Generated: Thursday, 14-Mar-2024 11:26:47 ! CDF created/modified by CDF V3.8.0 ! Skeleton table created by CDF V3.8.1_0 #header CDF NAME: psp_fld_l2_dfb_ac_spec_dv34hg_00000000_v01.cdf DATA ENCODING: NETWORK MAJORITY: COLUMN FORMAT: SINGLE ! Variables G.Attributes V.Attributes Records Dims Sizes ! --------- ------------ ------------ ------- ---- ----- 0/6 25 19 0/z 0 ! CDF_COMPRESSION: None ! (Valid compression: None, GZIP.1-9, RLE.0, HUFF.0, AHUFF.0) ! CDF_CHECKSUM: None ! (Valid checksum: None, MD5) ! CDF_LEAPSECONDLASTUPDATED: 20170101 #GLOBALattributes ! Attribute Entry Data ! Name Number Type Value ! --------- ------ ---- ----- "TITLE" 1: CDF_CHAR { "PSP FIELDS Digital Fields " - "Board (DFB), dV34hg data. " } . "Project" 1: CDF_CHAR { "PSP" } . "Discipline" 1: CDF_CHAR { "Solar Physics>Heliospheric" - " Physics" } 2: CDF_CHAR { "Solar " - "Physics>Interplanetary " - "Studies" } . "Source_name" 1: CDF_CHAR { "PSP>Parker Solar Probe" } . "Descriptor" 1: CDF_CHAR { "DFB_AC_SPEC_DV34HG>Digital" - " Fields Board AC Spectra " - "dV34hg" } . "Data_type" 1: CDF_CHAR { "L2>Level 2 Data" } . "Data_version" 1: CDF_CHAR { " " } . "TEXT" 1: CDF_CHAR { "PSP FIELDS Digital Fields " - "Board (DFB), dV34hg data. " } 2: CDF_CHAR { "The DFB is the low " - "frequency (< 75 kHz) " - "component of the FIELDS " - "experiment on the Parker " - "Solar Probe spacecraft " - "[1]. For a full " - "description of the FIELDS " - "experiment, see [2]. For a" - " description of the DFB, " - "see [3]." } 3: CDF_CHAR { "DFB AC spectra data " - "consist of power spectral " - "densities as a function of" - " frequency and time. " - "These spectra are averaged" - " in 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 AC " - "spectra are duty-cycled " - "such that spectral " - "averaging takes place over" - " the first 1/8 of any " - "given NYs (assuming a 1 " - "NYs data cadence). Less " - "data are averaged by 2^N " - "for cadences faster than 1" - " NYs by 2^N. For cadences" - " slower than 1 NYs, the " - "first 1/8 of each NYs of " - "data included are averaged" - " together to form the " - "reported data. " } 4: CDF_CHAR { "The Level 2 data products " - "contained in this data " - "file have been calibrated " - "for (i) the Hanning window" - " used in the spectral " - "calculation, (ii) DFB " - "in-band gain, (iii) DFB " - "analog filter gain " - "response, (iv) DFB digital" - " filter gain response, (v)" - " the search coil " - "preamplifier response " - "(when applicable), (vi) " - "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 1 " - "through the DFB frequency " - "range. Corrections for " - "plasma sheath impedance " - "gain and antenna effective" - " length have not been " - "applied to voltage sensor " - "data (these corrections " - "will be applied in Level 3" - " DFB data), therefore " - "units for all voltage " - "sensor quantities are " - "Volts^2/Hz. Units for all" - " magnetic field quantities" - " are nT^2/Hz." } 5: CDF_CHAR { "The Level 2 voltage data " - "products contained in this" - " data file are in sensor " - "coordinates (e.g. dV12, " - "dV34 for voltage " - "measurements). For solar " - "orbits 1 and 2, the search" - " coil magnetometer " - "spectral data is rotated " - "into a non-intuitive " - "coordinate system (d,e,f)." - " For solar orbits 3 and " - "beyond, magnetic field " - "data products are in u,v,w" - " search coil magnetometer " - "sensor coordinates. " } 6: CDF_CHAR { "To rotate from d,e,f into " - "u,v,w search coil sensor " - "coordinates, use the " - "following matrix as (IDL " - "notation) " - "spectra_uvw_3vector = R ##" - " spectra_def_3vector. " } 7: CDF_CHAR { "R = [ [ 0.46834856 , " - "-0.81336422 , " - "0.34509170]" } 8: CDF_CHAR { " [-0.66921924 , " - "-0.071546954 , " - "0.73961249]" } 9: CDF_CHAR { " [-0.57688408 , " - "-0.57733845 , " - "-0.57782790] ]" } 10: CDF_CHAR { "Time resolution of the DFB" - " AC spectral data can vary" - " by multiples of 2^N. " - "During encounter (when PSP" - " is within 0.25 AU of the " - "Sun), the DFB AC spectra " - "data is typically reported" - " each 1 NYsecond [2]. " - "Timestamps correspond to " - "the center time of each " - "window. " } 11: CDF_CHAR { "References: " } 12: CDF_CHAR { "1. Fox, N.J., Velli, M.C.," - " Bale, S.D. et al. Space " - "Sci Rev (2016) 204: 7. " - "https://doi.org/10.1007/s1" - "121401502116 " } 13: CDF_CHAR { "2. Bale, S.D., Goetz, K., " - "Harvey, P.R. et al. Space " - "Sci Rev (2016) 204: 49. " - "https://doi.org/10.1007/s1" - "121401602445 " } 14: CDF_CHAR { "3. Malaspina, D.M., Ergun," - " R.E., Bolton, M. et al. " - "(2016) JGR Space Physics, " - "121, 5088-5096. " - "https://doi.org/10.1002/20" - "16JA022344" } . "MODS" 1: CDF_CHAR { "Version 1" } . "Logical_file_id" 1: CDF_CHAR { "psp_fld_l2_dfb_ac_spec_dV3" - "4hg" } . "Logical_source" 1: CDF_CHAR { "psp_fld_l2_dfb_ac_spec_dV3" - "4hg" } . "Logical_source_description" 1: CDF_CHAR { "PSP FIELDS Level 2 DFB AC " - "Spectra of dV34 High Gain " - "(HG) Channel (DV34HG)" } . "PI_name" 1: CDF_CHAR { "Stuart D. Bale " - "(bale@ssl.berkeley.edu)" } . "PI_affiliation" 1: CDF_CHAR { "UC Berkeley Space Sciences" - " Laboratory" } . "Mission_group" 1: CDF_CHAR { "Parker Solar Probe (PSP)" } . "Parents" 1: CDF_CHAR { " " } . "Dependencies" 1: CDF_CHAR { "None" } . "Instrument_type" 1: CDF_CHAR { "Electric Fields (space)" } . "Generation_date" 1: CDF_CHAR { " " } . "Generated_by" 1: CDF_CHAR { "PSP FIELDS SOC" } . "HTTP_LINK" 1: CDF_CHAR { "http://fields.ssl.berkeley" - ".edu/data/" } . "LINK_TEXT" 1: CDF_CHAR { "PSP/FIELDS SOC" } . "LINK_TITLE" 1: CDF_CHAR { " Data Link" } . "svn_version" 1: CDF_CHAR { " " } . "spase_DatasetResourceID" 1: CDF_CHAR { "spase://NASA/NumericalData" - "/ParkerSolarProbe/FIELDS/D" - "FB/Level2/AC/Spectra/DV34/" - "HighGain/PT0.873813S" } . #VARIABLEattributes "CATDESC" "COORDINATE_SYSTEM" "DEPEND_0" "DEPEND_1" "DISPLAY_TYPE" "SCALETYP" "FIELDNAM" "FILLVAL" "FORMAT" "LABL_PTR_1" "LABLAXIS" "UNITS" "VALIDMIN" "VALIDMAX" "VAR_TYPE" "MONOTON" "SCALEMIN" "SCALEMAX" "VAR_NOTES" #variables ! No rVariables. #zVariables ! Variable Data Number Record Dimension ! Name Type Elements Dims Sizes Variance Variances ! -------- ---- -------- ---- ----- -------- --------- "epoch_ac_spec_dV34hg" CDF_TIME_TT2000 1 0 T ! VAR_COMPRESSION: None ! (Valid compression: None, GZIP.1-9, RLE.0, HUFF.0, AHUFF.0) ! VAR_SPARSERECORDS: None ! (Valid sparserecords: None, sRecords.PAD, sRecords.PREV) ! VAR_PADVALUE: 0000-01-01T00:00:00.000000000 ! Attribute Data ! Name Type Value ! -------- ---- ----- "CATDESC" CDF_CHAR { "Time for the DV34HG spectra data" } "FIELDNAM" CDF_CHAR { "epoch_ac_spec_dV34hg" } "FILLVAL" CDF_TIME_TT2000 { 9999-12-31T23:59:59.999999999 } "FORMAT" CDF_CHAR { "I22" } "LABLAXIS" CDF_CHAR { "epoch" } "UNITS" CDF_CHAR { "ns" } "VALIDMIN" CDF_TIME_TT2000 { 2010-01-01T00:00:00.000000000 } "VALIDMAX" CDF_TIME_TT2000 { 2050-01-01T00:00:00.000000000 } "VAR_TYPE" CDF_CHAR { "support_data" } "MONOTON" CDF_CHAR { "INCREASE" } "SCALEMIN" CDF_TIME_TT2000 { 2019-07-24T00:00:00.000000000 } "SCALEMAX" CDF_TIME_TT2000 { 2019-07-25T00:00:00.000000000 } . ! RV values were not requested. ! Variable Data Number Record Dimension ! Name Type Elements Dims Sizes Variance Variances ! -------- ---- -------- ---- ----- -------- --------- "psp_fld_l2_dfb_ac_spec_dV34hg_frequency_bins" CDF_FLOAT 1 1 54 T T ! VAR_COMPRESSION: GZIP.6 ! (Valid compression: None, GZIP.1-9, RLE.0, HUFF.0, AHUFF.0) ! VAR_SPARSERECORDS: None ! (Valid sparserecords: None, sRecords.PAD, sRecords.PREV) ! VAR_BLOCKINGFACTOR: 304 ! VAR_PADVALUE: -1.0e+30 ! Attribute Data ! Name Type Value ! -------- ---- ----- "CATDESC" CDF_CHAR { "Frequency bins for channel DV34HG" } "DEPEND_0" CDF_CHAR { "epoch_ac_spec_dV34hg" } "SCALETYP" CDF_CHAR { "log" } "FIELDNAM" CDF_CHAR { "psp_fld_l2_dfb_ac_spec_dV34hg_frequenc" - "y_bins" } "FILLVAL" CDF_FLOAT { -1.0e+31 } "FORMAT" CDF_CHAR { "F8.1" } "LABLAXIS" CDF_CHAR { "frequency" } "UNITS" CDF_CHAR { "Hz" } "VALIDMIN" CDF_FLOAT { 366.2 } "VALIDMAX" CDF_FLOAT { 72656.2 } "VAR_TYPE" CDF_CHAR { "support_data" } . ! RV values were not requested. ! Variable Data Number Record Dimension ! Name Type Elements Dims Sizes Variance Variances ! -------- ---- -------- ---- ----- -------- --------- "psp_fld_l2_dfb_ac_spec_dV34hg" CDF_FLOAT 1 1 54 T T ! VAR_COMPRESSION: GZIP.6 ! (Valid compression: None, GZIP.1-9, RLE.0, HUFF.0, AHUFF.0) ! VAR_SPARSERECORDS: None ! (Valid sparserecords: None, sRecords.PAD, sRecords.PREV) ! VAR_BLOCKINGFACTOR: 304 ! VAR_PADVALUE: -1.0e+30 ! Attribute Data ! Name Type Value ! -------- ---- ----- "CATDESC" CDF_CHAR { "L2 Power Spectra for channel DV34HG" } "DEPEND_0" CDF_CHAR { "epoch_ac_spec_dV34hg" } "DEPEND_1" CDF_CHAR { "psp_fld_l2_dfb_ac_spec_dV34hg_frequenc" - "y_bins" } "DISPLAY_TYPE" CDF_CHAR { "spectrogram" } "SCALETYP" CDF_CHAR { "log" } "FIELDNAM" CDF_CHAR { "psp_fld_l2_dfb_ac_spec_dV34hg" } "FILLVAL" CDF_FLOAT { -1.0e+31 } "FORMAT" CDF_CHAR { "F12.3" } "LABLAXIS" CDF_CHAR { "PSD" } "UNITS" CDF_CHAR { "V^2/Hz" } "VALIDMIN" CDF_FLOAT { 0.000 } "VALIDMAX" CDF_FLOAT { 122880.000 } "VAR_TYPE" CDF_CHAR { "data" } . ! RV values were not requested. ! Variable Data Number Record Dimension ! Name Type Elements Dims Sizes Variance Variances ! -------- ---- -------- ---- ----- -------- --------- "psp_fld_l2_dfb_ac_spec_dV34hg_saturation_flags" CDF_INT2 1 0 T ! VAR_COMPRESSION: GZIP.6 ! (Valid compression: None, GZIP.1-9, RLE.0, HUFF.0, AHUFF.0) ! VAR_SPARSERECORDS: None ! (Valid sparserecords: None, sRecords.PAD, sRecords.PREV) ! VAR_BLOCKINGFACTOR: 32768 ! VAR_PADVALUE: -32767 ! Attribute Data ! Name Type Value ! -------- ---- ----- "CATDESC" CDF_CHAR { "L2 Saturation flags (1 = spectra " - "saturated, 0 = spectra unsaturated)" } "DEPEND_0" CDF_CHAR { "epoch_ac_spec_dV34hg" } "DISPLAY_TYPE" CDF_CHAR { "time_series" } "SCALETYP" CDF_CHAR { "linear" } "FIELDNAM" CDF_CHAR { "psp_fld_l2_dfb_ac_spec_dV34hg_saturati" - "on_flags" } "FILLVAL" CDF_INT2 { -32768 } "FORMAT" CDF_CHAR { "I8" } "UNITS" CDF_CHAR { " " } "VALIDMIN" CDF_INT2 { 0 } "VALIDMAX" CDF_INT2 { 1 } "VAR_TYPE" CDF_CHAR { "support_data" } . ! RV values were not requested. ! Variable Data Number Record Dimension ! Name Type Elements Dims Sizes Variance Variances ! -------- ---- -------- ---- ----- -------- --------- "epoch_quality_flags" CDF_TIME_TT2000 1 0 T ! VAR_COMPRESSION: None ! (Valid compression: None, GZIP.1-9, RLE.0, HUFF.0, AHUFF.0) ! VAR_SPARSERECORDS: None ! (Valid sparserecords: None, sRecords.PAD, sRecords.PREV) ! VAR_PADVALUE: 0000-01-01T00:00:00.000000000 ! Attribute Data ! Name Type Value ! -------- ---- ----- "CATDESC" CDF_CHAR { "Time for the FIELDS quality flag" } "FIELDNAM" CDF_CHAR { "epoch_quality_flags" } "FILLVAL" CDF_TIME_TT2000 { 9999-12-31T23:59:59.999999999 } "FORMAT" CDF_CHAR { "I22" } "LABLAXIS" CDF_CHAR { "epoch" } "UNITS" CDF_CHAR { "ns" } "VALIDMIN" CDF_TIME_TT2000 { 2010-01-01T00:00:00.000000000 } "VALIDMAX" CDF_TIME_TT2000 { 2050-01-01T00:00:00.000000000 } "VAR_TYPE" CDF_CHAR { "support_data" } "MONOTON" CDF_CHAR { "INCREASE" } "SCALEMIN" CDF_TIME_TT2000 { 2019-07-24T00:00:00.000000000 } "SCALEMAX" CDF_TIME_TT2000 { 2019-07-25T00:00:00.000000000 } . ! RV values were not requested. ! Variable Data Number Record Dimension ! Name Type Elements Dims Sizes Variance Variances ! -------- ---- -------- ---- ----- -------- --------- "psp_fld_l2_quality_flags" CDF_UINT4 1 0 T ! VAR_COMPRESSION: GZIP.6 ! (Valid compression: None, GZIP.1-9, RLE.0, HUFF.0, AHUFF.0) ! VAR_SPARSERECORDS: None ! (Valid sparserecords: None, sRecords.PAD, sRecords.PREV) ! VAR_BLOCKINGFACTOR: 16384 ! VAR_PADVALUE: 4294967294 ! Attribute Data ! Name Type Value ! -------- ---- ----- "CATDESC" CDF_CHAR { "FIELDS quality flag" } "DEPEND_0" CDF_CHAR { "epoch_quality_flags" } "FIELDNAM" CDF_CHAR { "quality_flags" } "FILLVAL" CDF_UINT4 { 4294967295 } "FORMAT" CDF_CHAR { "I10" } "LABLAXIS" CDF_CHAR { "flag" } "UNITS" CDF_CHAR { "None" } "VALIDMIN" CDF_UINT4 { 0 } "VALIDMAX" CDF_UINT4 { 255 } "VAR_TYPE" CDF_CHAR { "support_data" } "VAR_NOTES" CDF_CHAR { "FIELDS quality flags. This is a " - "bitwise variable, meaning that " - "multiple flags can be set 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. " - "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 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." } . ! RV values were not requested. #end