{
  "startDate": "2000-03-25T21:31:52Z",
  "stopDate": "2005-12-18T07:38:17Z",
  "sampleStartDate": "2005-12-17T00:00:22Z",
  "sampleStopDate": "2005-12-17T23:58:56Z",
  "cadence": "PT50S",
  "x_cadence_fraction": 1,
  "x_cadence_note": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/image/hk/ast_k0/2000/im_hk_ast_20000325_v01.cdf. The most common cadence, 50000 [ms] = PT50S, occurred for all 176 timesteps. ",
  "maxRequestDuration": "PT4315700S",
  "resourceURL": "https://cdaweb.gsfc.nasa.gov/misc/NotesI.html#IM_HK_AST",
  "contact": "Dr. Jim Burch @ Southwest Research Institute",
  "resourceID": " ",
  "additionalMetadata": {
    "name": "SPASE",
    "contentURL": "https://spase-metadata.org/NASA/NumericalData/IMAGE/HK/CDAWeb/PT24H.html"
  },
  "parameters": [
    {
      "name": "Time",
      "type": "isotime",
      "units": "UTC",
      "length": 24,
      "fill": null,
      "x_description": "Orbit Epoch Time",
      "x_cdf_NAME": "Epoch",
      "x_cdf_DataType": "CDF_EPOCH"
    },
    {
      "name": "BS_QUATQ1",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "AST-derived quarternion 1",
      "fill": "-1.0E31",
      "units": "n/a",
      "x_label": "ASTQuat_1",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F10.4",
      "x_cdf_FIELDNAM": "AST Quarternion 1",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_QUATQ2",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "AST-derived quarternion 2",
      "fill": "-1.0E31",
      "units": "n/a",
      "x_label": "BS_QUATQ2",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F10.4",
      "x_cdf_FIELDNAM": "AST Quarternion 2",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_QUATQ3",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "AST-derived quarternion 3",
      "fill": "-1.0E31",
      "units": "n/a",
      "x_label": "QUATQ3",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F10.4",
      "x_cdf_FIELDNAM": "AST Quarternion 3",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_QUATQ4",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "AST-derived quarternion 4",
      "fill": "-1.0E31",
      "units": "n/a",
      "x_label": "BS_QUATQ4",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F10.4",
      "x_cdf_FIELDNAM": "AST Quarternion 4",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_ATTUNCX",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "AST Attitude uncertainty about X",
      "fill": "-1.0E31",
      "units": "urad/ct",
      "x_label": "BS_ATTUNCX",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F8.4",
      "x_cdf_FIELDNAM": "AST X Uncertainty",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_ATTUNCY",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "AST Attitude uncertainty about Y",
      "fill": "-1.0E31",
      "units": "urad/ct",
      "x_label": "BS_ATTUNCY",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F8.4",
      "x_cdf_FIELDNAM": "AST Y Uncertainty",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_ATTUNCZ",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "AST Attitude uncertainty about Z",
      "fill": "-1.0E31",
      "units": "urad/ct",
      "x_label": "BS_ATTUNCZ",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F8.4",
      "x_cdf_FIELDNAM": "AST Z Uncertainty",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_RMSERR",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "AST RMS star position error",
      "fill": "-1.0E31",
      "units": "urad",
      "x_label": "BS_RMSERR",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F8.4",
      "x_cdf_FIELDNAM": "AST RMS Error",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_ANGINCX",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "AST Angular Increment about X",
      "fill": "-1.0E31",
      "units": "urad",
      "x_label": "ANGINCX",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F8.4",
      "x_cdf_FIELDNAM": "X Angular Incrmnt",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_ANGINCY",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "AST Angular Increment about Y",
      "fill": "-1.0E31",
      "units": "urad",
      "x_label": "ANGINCY",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F8.4",
      "x_cdf_FIELDNAM": "Y Angular Incrmnt",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_ANGINCZ",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "AST Angular Increment about Z",
      "fill": "-1.0E31",
      "units": "urad",
      "x_label": "ANGINCZ",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F8.4",
      "x_cdf_FIELDNAM": "Z Angular Incrmnt",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_HK2P5Volts",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Voltage of +5v power supply",
      "fill": "-1.0E31",
      "units": "volts",
      "x_label": "HK2P5Volts",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F8.4",
      "x_cdf_FIELDNAM": "+5v PowerSupply",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_HK3M5Volts",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Minus 5v power supply voltage",
      "fill": "-1.0E31",
      "units": "volts",
      "x_label": "HK3M5Volts",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F8.4",
      "x_cdf_FIELDNAM": "-5v Power Supply",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_HK4P15Volts",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Plus 15v power supply voltage",
      "fill": "-1.0E31",
      "units": "volts",
      "x_label": "HK4P15Volts",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F8.4",
      "x_cdf_FIELDNAM": "+15v Power Supply",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_HK5M15Volts",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Minus 15v power supply voltage",
      "fill": "-1.0E31",
      "units": "volts",
      "x_label": "HK5M15Volts",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F8.4",
      "x_cdf_FIELDNAM": "-15v Power Supply",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_HK6P30Volts",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Plus 30v power supply voltage",
      "fill": "-1.0E31",
      "units": "volts",
      "x_label": "HK6P30Volts",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F8.4",
      "x_cdf_FIELDNAM": "+30v Power Supply",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_HK1HousTmp",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Temperature of AST Housing (c)",
      "fill": "-1.0E31",
      "units": "c",
      "x_label": "HK1HousTmp",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F8.4",
      "x_cdf_FIELDNAM": "AST Housing Temp",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_HK0CCDTmp",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Temperature of charge-coupled-device",
      "fill": "-1.0E31",
      "units": "c",
      "x_label": "HK0CCDTmp",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F8.4",
      "x_cdf_FIELDNAM": "CCD Temperature",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_HK8BiasBrdT",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Temperature of AST Bias Board (c)",
      "fill": "-1.0E31",
      "units": "c",
      "x_label": "HK8BiasBrdT",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F8.4",
      "x_cdf_FIELDNAM": "AST BiasBoard Temp",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_ASTEnabled",
      "type": "integer",
      "x_cdf_DataType": "CDF_BYTE",
      "description": "Autonomous Star Tracker Enabled",
      "fill": "-128",
      "units": "n/a",
      "x_label": "ASTEnabled",
      "x_cdf_FORMAT": "i4",
      "x_cdf_FIELDNAM": "AST Enabled flag",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_AttOK",
      "type": "integer",
      "x_cdf_DataType": "CDF_BYTE",
      "description": "AST Attitude OK 0=bad,1=ok",
      "fill": "-128",
      "units": "n/a",
      "x_label": "AttOK",
      "x_cdf_FORMAT": "i4",
      "x_cdf_FIELDNAM": "AST Attitude OK",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_SyncOK",
      "type": "integer",
      "x_cdf_DataType": "CDF_BYTE",
      "description": "AST Syncronization OK 0=bad,1=ok",
      "fill": "-128",
      "units": "n/a",
      "x_label": "SyncOK",
      "x_cdf_FORMAT": "i4",
      "x_cdf_FIELDNAM": "AST Sync OK",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_OpsMode",
      "type": "integer",
      "x_cdf_DataType": "CDF_BYTE",
      "description": "AST Ops Mode 1=boot,2=init,3=standby,4=acq,5=Ftrack,6=Wtrack",
      "fill": "-128",
      "units": "n/a",
      "x_label": "OpsMode",
      "x_cdf_FORMAT": "i4",
      "x_cdf_FIELDNAM": "AST Ops Mode",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_CalopsOK",
      "type": "integer",
      "x_cdf_DataType": "CDF_BYTE",
      "description": "AST Calops table OK 0=bad,1=ok",
      "fill": "-128",
      "units": "n/a",
      "x_label": "CalopsOK",
      "x_cdf_FORMAT": "i4",
      "x_cdf_FIELDNAM": "AST Calops OK",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_TDIAct",
      "type": "integer",
      "x_cdf_DataType": "CDF_BYTE",
      "description": "AST Time Delay Imaging Status 0=inactive,1=active",
      "fill": "-128",
      "units": "n/a",
      "x_label": "TDI_Active",
      "x_cdf_FORMAT": "i4",
      "x_cdf_FIELDNAM": "AST TDI Active",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_TECstate",
      "type": "integer",
      "x_cdf_DataType": "CDF_BYTE",
      "description": "AST ThermoElectric Cooler state off/cold/cool/warm",
      "fill": "-128",
      "units": "n/a",
      "x_label": "TECstate",
      "x_cdf_FORMAT": "i6",
      "x_cdf_FIELDNAM": "AST TEC state",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_TECCCDtmp",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "Temperature of AST TEC CCD (c)",
      "fill": "-1.0E31",
      "units": "c",
      "x_label": "TECCCDtmp",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F8.4",
      "x_cdf_FIELDNAM": "AST TEC CCD Tmp",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_FOCLNGUSED",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "AST Focal Length Used",
      "fill": "-1.0E31",
      "units": "microns",
      "x_label": "FOCLNGUSED",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F8.4",
      "x_cdf_FIELDNAM": "AST FocalLen",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_DFOCLNGEST",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "AST Delta Focal Length Estimate",
      "fill": "-1.0E31",
      "units": "microns",
      "x_label": "DFOCLNGEST",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F8.4",
      "x_cdf_FIELDNAM": "AST DeltaFocalLen",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_INTTIME",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "AST Center of Integration timestamp",
      "fill": "-32768",
      "units": "secs",
      "x_label": "INTTIME",
      "x_cdf_FORMAT": "i8",
      "x_cdf_FIELDNAM": "AST ITstamp",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_StarsIDD",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "AST Stars identified delta",
      "fill": "-32768",
      "units": "n/a",
      "x_label": "StarsIDD",
      "x_cdf_FORMAT": "i6",
      "x_cdf_FIELDNAM": "AST delta ID",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_STARIDSTG1",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "AST Stars identified in stage 1",
      "fill": "-32768",
      "units": "n/a",
      "x_label": "STARIDSTG1",
      "x_cdf_FORMAT": "i6",
      "x_cdf_FIELDNAM": "AST Starts IDd 1",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_STARIDSTG2",
      "type": "integer",
      "x_cdf_DataType": "CDF_INT2",
      "description": "AST Stars identified in stage 2",
      "fill": "-32768",
      "units": "n/a",
      "x_label": "STARIDSTG2",
      "x_cdf_FORMAT": "i6",
      "x_cdf_FIELDNAM": "AST Stars IDd 2",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    },
    {
      "name": "BS_PNMGSTAR",
      "type": "double",
      "x_cdf_DataType": "CDF_REAL4",
      "description": "AST Predicted #of Guide Stars",
      "fill": "-1.0E31",
      "units": "n/a",
      "x_label": "PNMGSTAR",
      "x_format": ".4f",
      "x_fractionDigits": "4",
      "x_cdf_FORMAT": "F8.4",
      "x_cdf_FIELDNAM": "AST Predicted Guidestars",
      "x_cdf_DISPLAY_TYPE": "default_dimension",
      "x_cdf_DEPEND_0": "Epoch"
    }
  ],
  "x_info_author": "bw",
  "x_cdaweb_hapi_version": "20260130.0606",
  "x_info_caching": false,
  "status": {
    "code": 1200,
    "message": "OK"
  },
  "HAPI": "3.2",
  "x_LastUpdate": "2026-04-14T15:10:57Z"
}