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Name Template: PUB/MISSION/level2/scnSpc/YYYY.DDD/scnSpc_YYYY.DDD.LLL.NN.TT.GGG.BBBBB_SSSS.VVVV_nc_nc

BBBBBScintillation arc ID (SCXXX, where XXX is 001-999)
DDDDay of year
GGGGNSS id (G28 = GPS satellite 28)
LLLLEO number (1-6 for COSMIC)
MISSIONMission ID (eight characters or less--champ, champrt, sacc, sacctst, etc)
NNdump number
PUBBase directory for the pub hierarchy
SSSSSubtype (an ID which tells the command options used in generating this file)
TTAntenna ID
VVVVVersion (an ID which tells the version of all codes using in generating thie file)
YYYYYear

This file contains sliding spectrograms of the L1 and L2 high-rate (50 Hz) phase and amplitude data from one GNSS satellite for tracking arcs that are determined on-orbit to be scintillating. Each file contains continuous data from one GNSS satellite.

Global Data


startTime

  • Description:Starting time for the occultation
  • Data Type: double
  • Units: GPS seconds

stopTime

  • Description:Ending time for the occultation
  • Data Type: double
  • Units: GPS seconds

fileStamp

  • Description:The complete ID for this scintillating track (YYYY.DDD.LLL.NN.TT.GGG.BBBBB).
  • Data Type: char

refsatId

  • Description:The PRN number of the reference GPS satellite
  • Data Type: int(4)
  • Valid Range: 1, 36

Profile Data


time

  • Description:The time axis of the spectrograms
  • Data Type: double
  • Units: Seconds since startTime
  • Valid Range: 0, 65535
  • Missing Value: -999

freq

  • Description:The frequency axis of the spectrograms
  • Data Type: double
  • Units: Hz
  • Valid Range: -50, 50
  • Missing Value: -999

specL1

  • Description:The L1 sliding spectrogram: 2D variable: time, freq
  • Data Type: float
  • Units: Normalized spectral power
  • Valid Range: 0, 1
  • Missing Value: -999

specL2

  • Description:The L2 sliding spectrogram: 2D variable: time, freq
  • Data Type: float
  • Units: Normalized spectral power
  • Valid Range: 0, 1
  • Missing Value: -999