Name Template: PUB/MISSION/level1b/ionPhs/YYYY.DDD/ionPhs_IIII.YYYY.DDD.HH.MM.GGG_SSSS.VVVV_nc

DDD	Day of year
GGG	GNSS id (G28 = GPS satellite 28)
HH	Hour
IIII	Mission ID (CHAM, SACC, CO01-06, GPSM, etc)
LLL	LEO number (1-6 for COSMIC)
MISSION	Mission ID (eight characters or less--champ, champrt, sacc, sacctst, etc)
MM	Minute
PUB	Base directory for the pub hierarchy
SSSS	Subtype (an ID which tells the command options used in generating this file)
VVVV	Version (an ID which tells the version of all codes using in generating thie file)
YYYY	Year

Ionospheric excess phase file. This file is analogous to the GPS/MET 'occ' level 2 files, but it is in NetCDF format instead of tab-delimited ASCII. For more information on NetCDF, see http://www.unidata.ucar.edu/packages/netcdf/index.html.

Global Data

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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

fidName

• Description:IGS four character name of the double difference fiducial site used, if any
• Data Type: char(4)

fileStamp

• Description:The complete ID for this occultation (IIII.YYYY.DDD.HH.MM.GGG).
• Data Type: char

refsatId

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

setting

• Description:Flag: 1 = A setting occultation, 0 = A rising occultation
• Data Type: int(4)
• Valid Range: 0, 1

intref

• Description:Flag: L2 reference link interpolation (1=yes)
• Data Type: int(4)
• Valid Range: 0, 1

Profile Data

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pL1Snr

• Description:Signal to Noise Ratio on the L1 channel, P code
• Data Type: float
• Units: 1/10 volts/volt
• Valid Range: 0, 65535
• Missing Value: -999

zLeo

• Description:LEO Z position (ECI)
• Data Type: double
• Units: km
• Valid Range: -7378, 7378
• Missing Value: -999

zGps

• Description:GPS Z position (ECI)
• Data Type: double
• Units: km
• Valid Range: -26564, 26564
• Missing Value: -999

xGps

• Description:GPS X position (ECI)
• Data Type: double
• Units: km
• Valid Range: -26564, 26564
• Missing Value: -999

pL2Snr

• Description:Signal to Noise Ratio on the L2 channel, P code
• Data Type: float
• Units: 1/10 volts/volt
• Valid Range: 0, 65535
• Missing Value: -999

dTime

• Description:Time since start of occultation
• Data Type: float
• Units: GPS seconds
• Valid Range: 0, 240
• Missing Value: -999

exL2

• Description:Excess Phase on L2 channel
• Data Type: double
• Units: m
• Valid Range: -5000, 5000
• Missing Value: -999

xdGps

• Description:GPS X velocity (ECI)
• Data Type: double
• Units: km/s
• Valid Range: -5, 5
• Missing Value: -999

yLeo

• Description:LEO Y position (ECI)
• Data Type: double
• Units: km
• Valid Range: -7378, 7378
• Missing Value: -999

zdLeo

• Description:LEO Z velocity (ECI)
• Data Type: double
• Units: km/s
• Valid Range: -8, 8
• Missing Value: -999

exL1

• Description:Excess Phase on L1 channel
• Data Type: double
• Units: m
• Valid Range: -5000, 5000
• Missing Value: -999

caL1Snr

• Description:Signal to Noise Ratio on the L1 channel, CA code
• Data Type: float
• Units: 1/10 volts/volt
• Valid Range: 0, 65535
• Missing Value: -999

ydLeo

• Description:LEO Y velocity (ECI)
• Data Type: double
• Units: km/s
• Valid Range: -8, 8
• Missing Value: -999

xLeo

• Description:LEO X position (ECI)
• Data Type: double
• Units: km
• Valid Range: -7378, 7378
• Missing Value: -999

xdLeo

• Description:LEO X velocity (ECI)
• Data Type: double
• Units: km/s
• Valid Range: -8, 8
• Missing Value: -999

zdGps

• Description:GPS Z velocity (ECI)
• Data Type: double
• Units: km/s
• Valid Range: -5, 5
• Missing Value: -999

ydGps

• Description:GPS Y velocity (ECI)
• Data Type: double
• Units: km/s
• Valid Range: -5, 5
• Missing Value: -999

yGps

• Description:GPS Y position (ECI)
• Data Type: double
• Units: km
• Valid Range: -26564, 26564
• Missing Value: -999