Name Template: PUB/MISSION/level2/ionPrf/YYYY.DDD/ionPrf_IIII.YYYY.DDD.HH.MM.GGG_SSSS.VVVV_nc

Global Data

occ_id

• Description:Occultation ID
• Data Type: int

fiducial_id

• Description:Fiducial station used for double differencing
• Data Type: char

reference_sat_id

• Description:PRN ID of reference satellite
• Data Type: int

occulting_sat_id

• Description:PRN ID of occulting satellite
• Data Type: int

year

• Description:Year (four digit) of edmaxtime
• Data Type: int

month

• Description:Month of the year of edmaxtime
• Data Type: int

day

• Description:Day of the month of edmaxtime
• Data Type: int

hour

• Description:Hour of day of edmaxtime
• Data Type: int

minute

• Description:Minute of hour of edmaxtime
• Data Type: int

second

• Description:Second of minute of edmaxtime
• Data Type: double

offset

• Description:Offset of short vectors in long vectors
• Data Type: int

shortlen

• Description:Size of short vectors
• Data Type: int

setting

• Description:Flag: 1 for setting occultations, 0 for rising occultations
• Data Type: int

icalib

• Description:Flag: 1 for far-side TEC calibration, 0 for quasi-calibration
• Data Type: int

botnum

• Description:Bottom data number
• Data Type: int

bottime

• Description:Time at bottom of occultation in GPS seconds
• Data Type: double
• Units: s

botlct

• Description:Local time at bottime and botlon
• Data Type: double
• Units: hrs

botalt

• Description:Bottom altitude
• Data Type: double
• Units: km

botlat

• Description:Bottom latitude
• Data Type: double
• Units: deg

botlon

• Description:Bottom longitude
• Data Type: double
• Units: deg

botaz

• Description:Bottom azimuth angle of occultation plane with respect to North
• Data Type: double
• Units: deg

topnum

• Description:Top data number
• Data Type: int

toptime

• Description:Time at top of occultation in GPS seconds
• Data Type: double
• Units: s

toplct

• Description:Local time at toptime and toplon
• Data Type: double
• Units: hrs

topalt

• Description:Top altitude
• Data Type: double
• Units: km

toplat

• Description:Top latitude
• Data Type: double
• Units: deg

toplon

• Description:Top longitude
• Data Type: double
• Units: deg

topaz

• Description:Top azimuth angle of occultation plane with respect to North
• Data Type: double
• Units: deg

edmaxtime

• Description:Time at electron density maximum in GPS seconds
• Data Type: double
• Units: s

edmaxlct

• Description:Local time at edmaxtime and edmaxlon
• Data Type: double
• Units: hrs

edmaxalt

• Description:Altitude at maximum electron density
• Data Type: double
• Units: km

edmaxlat

• Description:Latitude at maximum electron density
• Data Type: double
• Units: deg

edmaxlon

• Description:Longitude at maximum electron density
• Data Type: double
• Units: deg

edmaxaz

• Description:Azimuth angle of occ. plane with respect to North at maximum electron density
• Data Type: double
• Units: deg

smear

• Description:Horizontal smear of tangent points from top to bottom
• Data Type: double
• Units: km

edmax

• Description:Maximum electron density
• Data Type: double
• Units: el/cm3

critfreq

• Description:Critical frequency at maximum electron density
• Data Type: double
• Units: MHz

tec0

• Description:Integrated TEC between bottom and top
• Data Type: double
• Units: TECU

tec1

• Description:Extrapolated TEC above top
• Data Type: double
• Units: TECU

edorbtime

• Description:Time of electron density estimation at orbit altitude in GPS seconds
• Data Type: double
• Units: s

edorbalt

• Description:Altitude of electron density estimation at orbit altitude
• Data Type: double
• Units: km

edorb

• Description:Electron density at orbit altitude
• Data Type: double
• Units: el/cm3

hscale

• Description:Scale height at orbit altitude (estimated and used only for icalib = 0)
• Data Type: double
• Units: km

topfit

• Description:Post-fit residual near the top
• Data Type: double
• Units: TECU

nmax

• Description:Size of the vector data
• Data Type: int

fileStamp

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

inverter

• Description:Name of program used for data inversion
• Data Type: char

parmsfile

• Description:Name of input parameter file
• Data Type: char

center

• Description:Name of processing center
• Data Type: char

mission

• Description:Name of the mission
• Data Type: char

creation_time

• Description:Time of file creation
• Data Type: char

Profile Data

MSL_alt

• Description:Mean sea level altitude of perigee point
• Data Type: float
• Units: km
• Valid Range: 0, 9999
• Missing Value: -999

GEO_lon

• Description:Geographical longitude of perigee point
• Data Type: float
• Units: degrees_east
• Valid Range: -180, 180
• Missing Value: -999

GEO_lat

• Description:Geographical latitude of perigee point
• Data Type: float
• Units: degrees_north
• Valid Range: -90, 90
• Missing Value: -999

OCC_azi

• Description:Azimuth angle of occ. plane with respect to north
• Data Type: float
• Units: deg
• Valid Range: -180, 180
• Missing Value: -999

TEC_cal

• Description:Calibrated occultation TEC below LEO orbit
• Data Type: float
• Units: TECU
• Valid Range: -100000000, 100000000
• Missing Value: -999

ELEC_dens

• Description:Electron density
• Data Type: float
• Units: el/cm3
• Valid Range: -100000000, 100000000
• Missing Value: -999