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
https://www.unidata.ucar.edu/software/netcdf/.
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
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
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
Time
- 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
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