! Skeleton table for the "voyager2_1hr_mag_00000000_v01.cdf" CDF. ! Generated: Thursday, 14-Mar-2024 11:13:42 ! CDF created/modified by CDF V3.1.1 ! Skeleton table created by CDF V3.8.1_0 #header CDF NAME: voyager2_1hr_mag_00000000_v01.cdf DATA ENCODING: NETWORK MAJORITY: COLUMN FORMAT: SINGLE ! Variables G.Attributes V.Attributes Records Dims Sizes ! --------- ------------ ------------ ------- ---- ----- 0/7 26 24 0/z 1 3 ! CDF_COMPRESSION: None ! (Valid compression: None, GZIP.1-9, RLE.0, HUFF.0, AHUFF.0) ! CDF_CHECKSUM: None ! (Valid checksum: None, MD5) #GLOBALattributes ! Attribute Entry Data ! Name Number Type Value ! --------- ------ ---- ----- "TITLE" 1: CDF_CHAR { "VOYAGER2" } . "Project" 1: CDF_CHAR { "VOYAGER2" } . "Discipline" 1: CDF_CHAR { "Space " - "Physics>Interplanetary " - "Studies" } 2: CDF_CHAR { "Solar Physics>Heliospheric" - " Physics" } . "Source_name" 1: CDF_CHAR { "VOYAGER2> Voyager 1" } . "Data_type" 1: CDF_CHAR { "1HR>1 hour resolution" } . "Descriptor" 1: CDF_CHAR { "MAG>TRIAXIAL FLUXGATE " - "MAGNETOMETER" } . "Data_version" 1: CDF_CHAR { "1" } . "Generated_by" 1: CDF_CHAR { " L. F. Burlaga" } . "Generation_date" 1: CDF_CHAR { " 07/07/2005" } . "LINK_TEXT" 1: CDF_CHAR { " " } . "LINK_TITLE" 1: CDF_CHAR { " " } . "HTTP_LINK" 1: CDF_CHAR { " " } . "TEXT" 1: CDF_CHAR { "This data set includes the" - " Voyager spacecraft number" - " (1 or 2), the date-time " - "in decimal year (90.00000 " - "is day 1 of 1990), the " - "magnetic field strength F1" - " computed from " - "high-resolution " - "magnitudes, the elevation " - "and azimuth angles " - "(degrees) in heliographic " - "(RTN) coordinates, and the" - " magnetic field strength " - "F2 computed from hour " - "averages of the " - "components. The vector " - "components of B can be " - "computed from F2 and the " - "two angles. Elevation " - "angle is the latitude " - "angle above or below the " - "solar equatorial plane, " - "and azimuth angle is in " - "the direction orbital " - "motion around the Sun from" - " the projection of the " - "Sun-to-spacecraft axis " - "into the solar equatorial " - "plane. The Voyager MAG " - "experiment and coordinates" - " are further described in " - "the following publication:" - " Behannon, K.W., M.H. " - "Acuna, L.F. Burlaga, R.P. " - "Lepping, N.F. Ness, and " - "F.M. Neubauer, " - "Magnetic-Field Experiment " - "for Voyager-1 and " - "Voyager-2, Space Science " - "Reviews, 21 (3), 235-257, " - "1977...At the time of " - "experiment proposal, it " - "was expected that the " - "required accuracy of the " - "measurements would be 0.1 " - "nT, determined by the " - "combined noise of the " - "sensors and the spacecraft" - " field. The spacecraft " - "magnetic field at the " - "outboard magnetic field " - "sensor, referred to as the" - " primary unit, was " - "expected to be 0.2 nT and " - "highly variable, " - "consistent with current " - "estimates. Hence, the dual" - " magnetometer design (Ness" - " et al., 1971, 1973; " - "Behannon et al. 1977). " - "..At distances > 40 AU, " - "the heliospheric magnetic " - "fields are generally much " - "weaker than 0.4 nT; the " - "average magnetic field " - "strength near 40 AU and 85" - " AU is about 0.15 nT and " - "0.05 nT, respectively. The" - " use of roll calibrations " - "lasting about 6 hours " - "permits determination of " - "the effective zero levels " - "for the two independent " - "magnetic axes that are " - "perpendicular to the roll " - "axis (which is nearly " - "parallel to the radius " - "vector to the Sun) at " - "intervals of about 3 " - "months. There is no roll " - "calibration for the third " - "magnetic axis. Comparison " - "of the two derived " - "magnetic vectors from the " - "two magnetometers permits " - "validation of the primary " - "magnetometer data with an " - "accuracy of 0.02 to 0.05 " - "nT. A discussion of the " - "uncertainties that must be" - " considered when using " - "these data is given in the" - " Appendix of Burlaga et " - "al. [1994] and in Appendix" - " A of Burlaga et al. " - "[2002]. ..References: " - "..Behannon, K.W., M.H. " - "Acuna, L.F. Burlaga, R.P. " - "Lepping, N.F. Ness, and " - "F.M. Neubauer, " - "Magnetic-Field Experiment " - "for Voyager-1 and " - "Voyager-2, Space Science " - "Reviews, 21 (3), 235-257, " - "1977. ..Burlaga, L.F., " - "Merged interaction regions" - " and large-scale magnetic " - "field fluctuations during " - "1991 - Voyager-2 " - "observations, J. Geophys. " - "Res., 99 (A10), " - "19341-19350, 1994. " - "..Burlaga, L.F., N.F. " - "Ness, Y.-M. Wang, and N.R." - " Sheeley Jr., Heliospheric" - " magnetic field strength " - "and polarity from 1 to 81 " - "AU during the ascending " - "phase of solar cycle 23, " - "J. Geophys. Res., 107 " - "(A11), 1410, 2002. ..Ness," - " N., K.W. Behannon, R. " - "Lepping, and K.H. " - "Schatten, J. Geophys. " - "Res., 76, 3564, 1971. " - "..Ness et al., 1973" } 2: CDF_CHAR { "At distances > 40 AU, the " - "heliospheric magnetic " - "fields are generally much " - "weaker than 0.4 nT; the " - "average magnetic field " - "strength near 40 AU and 85" - " AU is about 0.15 nT and " - "0.05 nT, respectively. The" - " use of roll calibrations " - "lasting about 6 hours " - "permits determination of " - "the effective zero levels " - "for the two independent " - "magnetic axes that are " - "perpendicular to the roll " - "axis (which is nearly " - "parallel to the radius " - "vector to the Sun) at " - "intervals of about 3 " - "months. There is no roll " - "calibration for the third " - "magnetic axis. Comparison " - "of the two derived " - "magnetic vectors from the " - "two magnetometers permits " - "validation of the primary " - "magnetometer data with an " - "accuracy of 0.02 to 0.05 " - "nT. A discussion of the " - "uncertainties that must be" - " considered when using " - "these data is given in the" - " Appendix of Burlaga et " - "al. [1994] and in Appendix" - " A of Burlaga et al. " - "[2002]." } . "MODS" 1: CDF_CHAR { " " } . "ADID_ref" 1: CDF_CHAR { "NSSD0110" } . "Logical_file_id" 1: CDF_CHAR { "voyager2_1hr_mag_19901201_" - "v01" } . "Logical_source" 1: CDF_CHAR { "voyager2_1hr_mag" } . "Logical_source_description" 1: CDF_CHAR { "hourly average " - "interplanetary magnetic " - "field" } . "PI_name" 1: CDF_CHAR { "Norman F. Ness" } . "PI_affiliation" 1: CDF_CHAR { "Bartol Research Institute" } . "Mission_group" 1: CDF_UCHAR { "Voyager" } 2: CDF_UCHAR { "!___Interplanetary Data " } . "Instrument_type" 1: CDF_CHAR { "Magnetic Fields (space)" } . "Time_resolution" 1: CDF_CHAR { "1 hour" } . "Web_site" 1: CDF_CHAR { " " } . "Acknowledgement" 1: CDF_CHAR { " Please acknowledge the " - "Principal Investigator, " - "Norman F. Ness of the " - "Bartol Research Institute," - " University of Delaware, " - "and the NASA National " - "Space Science Data Center " - "(NSSDC) for usage of data " - "from this site in " - "publications and " - "presentations." } . "Rules_of_use" 1: CDF_CHAR { " " } . #VARIABLEattributes "FIELDNAM" "VALIDMIN" "VALIDMAX" "SCALEMIN" "SCALEMAX" "UNITS" "FORMAT" "MONOTON" "VAR_TYPE" "DICT_KEY" "FILLVAL" "LABL_PTR_1" "LABL_PTR_2" "UNIT_PTR" "FORM_PTR" "DEPEND_0" "DEPEND_1" "CATDESC" "LABLAXIS" "AVG_TYPE" "DISPLAY_TYPE" "VAR_NOTES" "SCALETYP" "SCAL_PTR" #variables ! No rVariables. #zVariables ! Variable Data Number Record Dimension ! Name Type Elements Dims Sizes Variance Variances ! -------- ---- -------- ---- ----- -------- --------- "Epoch" CDF_EPOCH 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: 01-Jan-0000 00:00:00.000 ! Attribute Data ! Name Type Value ! -------- ---- ----- "FIELDNAM" CDF_CHAR { "Time" } "VALIDMIN" CDF_EPOCH { 01-Jan-1996 00:00:00.000 } "VALIDMAX" CDF_EPOCH { 01-Jan-2020 00:00:00.000 } "SCALEMIN" CDF_EPOCH { 01-Jan-1996 00:00:00.000 } "SCALEMAX" CDF_EPOCH { 01-Jan-2020 00:00:00.000 } "UNITS" CDF_CHAR { "ms" } "FORMAT" CDF_CHAR { "E14.8" } "MONOTON" CDF_CHAR { "INCREASE" } "VAR_TYPE" CDF_CHAR { "support_data" } "DICT_KEY" CDF_CHAR { "time>epoch" } "FILLVAL" CDF_REAL8 { -1.0e+31 } "CATDESC" CDF_CHAR { "Time, beginning of interval" } "LABLAXIS" CDF_CHAR { "Epoch" } "AVG_TYPE" CDF_CHAR { " " } "DISPLAY_TYPE" CDF_CHAR { " " } "VAR_NOTES" CDF_CHAR { " " } "SCALETYP" CDF_CHAR { "LINEAR" } . ! RV values were not requested. ! Variable Data Number Record Dimension ! Name Type Elements Dims Sizes Variance Variances ! -------- ---- -------- ---- ----- -------- --------- "Spacecraft" CDF_BYTE 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: 0 ! Attribute Data ! Name Type Value ! -------- ---- ----- "FIELDNAM" CDF_CHAR { "Spacecraft" } "VALIDMIN" CDF_BYTE { 1 } "VALIDMAX" CDF_BYTE { 2 } "UNITS" CDF_CHAR { " " } "FORMAT" CDF_CHAR { "I1" } "VAR_TYPE" CDF_CHAR { "data" } "FILLVAL" CDF_BYTE { -128 } "DEPEND_0" CDF_CHAR { "Epoch" } "CATDESC" CDF_CHAR { "Spacecraft id, 1 for voyager1, 2 for " - "voyager2" } "LABLAXIS" CDF_CHAR { "Spacecraft" } "VAR_NOTES" CDF_CHAR { " " } . ! RV values were not requested. ! Variable Data Number Record Dimension ! Name Type Elements Dims Sizes Variance Variances ! -------- ---- -------- ---- ----- -------- --------- "Decimal_Year" CDF_REAL8 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: 0.0 ! Attribute Data ! Name Type Value ! -------- ---- ----- "FIELDNAM" CDF_CHAR { "Decimal Year" } "VALIDMIN" CDF_REAL8 { 1.00000000 } "VALIDMAX" CDF_REAL8 { 367.00000000 } "UNITS" CDF_CHAR { " " } "FORMAT" CDF_CHAR { "F12.8" } "VAR_TYPE" CDF_CHAR { "data" } "DEPEND_0" CDF_CHAR { "Epoch" } "CATDESC" CDF_CHAR { "Decimal Year (90.00000 is at the start" - " of day 001 for year 1990)." } "LABLAXIS" CDF_CHAR { "Decimal Year" } "DISPLAY_TYPE" CDF_CHAR { "time_series" } "VAR_NOTES" CDF_CHAR { " " } . ! RV values were not requested. ! Variable Data Number Record Dimension ! Name Type Elements Dims Sizes Variance Variances ! -------- ---- -------- ---- ----- -------- --------- "F1Mag" CDF_REAL4 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: 0.0 ! Attribute Data ! Name Type Value ! -------- ---- ----- "FIELDNAM" CDF_CHAR { "F1 Magnitude" } "VALIDMIN" CDF_REAL4 { 0.000 } "VALIDMAX" CDF_REAL4 { 10.000 } "UNITS" CDF_CHAR { "nT" } "FORMAT" CDF_CHAR { "F6.3" } "VAR_TYPE" CDF_CHAR { "data" } "FILLVAL" CDF_REAL4 { 999.000 } "DEPEND_0" CDF_CHAR { "Epoch" } "CATDESC" CDF_CHAR { "Magnetic field strength from hourly " - "average of high-resolution magnitudes" } "LABLAXIS" CDF_CHAR { "F1 Magnitude" } "DISPLAY_TYPE" CDF_CHAR { "time_series" } "VAR_NOTES" CDF_CHAR { "This is the hourly time average of " - "magnitudes from high resolution data. " } . ! RV values were not requested. ! Variable Data Number Record Dimension ! Name Type Elements Dims Sizes Variance Variances ! -------- ---- -------- ---- ----- -------- --------- "elevation" CDF_REAL4 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: 0.0 ! Attribute Data ! Name Type Value ! -------- ---- ----- "FIELDNAM" CDF_CHAR { "elevation angle" } "VALIDMIN" CDF_REAL4 { -90.0 } "VALIDMAX" CDF_REAL4 { 90.0 } "UNITS" CDF_CHAR { "degrees " } "FORMAT" CDF_CHAR { "F6.1" } "VAR_TYPE" CDF_CHAR { "data" } "FILLVAL" CDF_REAL4 { 999.0 } "DEPEND_0" CDF_CHAR { "Epoch" } "CATDESC" CDF_CHAR { "The elevation angle in heliographic " - "(RTN) coordinates" } "LABLAXIS" CDF_CHAR { "elevation angle" } "DISPLAY_TYPE" CDF_CHAR { "time_series" } "VAR_NOTES" CDF_CHAR { " This is the latitude angle above or " - "below the solar equatorial plane. " } . ! RV values were not requested. ! Variable Data Number Record Dimension ! Name Type Elements Dims Sizes Variance Variances ! -------- ---- -------- ---- ----- -------- --------- "azimuth" CDF_REAL4 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: 0.0 ! Attribute Data ! Name Type Value ! -------- ---- ----- "FIELDNAM" CDF_CHAR { "azimuthal angle" } "VALIDMIN" CDF_REAL4 { 0.0 } "VALIDMAX" CDF_REAL4 { 360.0 } "UNITS" CDF_CHAR { "degrees" } "FORMAT" CDF_CHAR { "F6.1" } "VAR_TYPE" CDF_CHAR { "data" } "FILLVAL" CDF_REAL4 { 999.0 } "DEPEND_0" CDF_CHAR { "Epoch" } "CATDESC" CDF_CHAR { "The azimuthal angle in heliographic " - "(RTN) coordinates" } "LABLAXIS" CDF_CHAR { "elevation angle" } "DISPLAY_TYPE" CDF_CHAR { "time_series" } "VAR_NOTES" CDF_CHAR { " This is the longitude angle in the " - "direction of orbital motion around the" - " Sun from the Sun-to-spacecraft " - "direction." } . ! RV values were not requested. ! Variable Data Number Record Dimension ! Name Type Elements Dims Sizes Variance Variances ! -------- ---- -------- ---- ----- -------- --------- "F2Mag" CDF_REAL4 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: 0.0 ! Attribute Data ! Name Type Value ! -------- ---- ----- "FIELDNAM" CDF_CHAR { "F2 Magnitude" } "VALIDMIN" CDF_REAL4 { 0.000 } "VALIDMAX" CDF_REAL4 { 10.000 } "UNITS" CDF_CHAR { "nT" } "FORMAT" CDF_CHAR { "F6.3" } "VAR_TYPE" CDF_CHAR { "data" } "FILLVAL" CDF_REAL4 { 999.000 } "DEPEND_0" CDF_CHAR { "Epoch" } "CATDESC" CDF_CHAR { "Magnetic field strength from magnitude" - " of the hourly averaged vector field" } "LABLAXIS" CDF_CHAR { "F1 Magnitude" } "DISPLAY_TYPE" CDF_CHAR { "time_series" } "VAR_NOTES" CDF_CHAR { "The vector components are computed " - "from F2mag and the two angles for " - "elevation (latitude) and azimuth " - "(longitude). " } . ! RV values were not requested. #end