Product-Documentation

Product: Vertical Total Electron Content (VTEC)
Version: 06
Mission: Jason-1 (Extended Mission)

Parameter Description
jday.00 Julian Day
Julian Day Epoch 2000.0 (2000-01-01 12:00:00 UTC)
Julian Day 2000 values are truncated in MVA after 5-digits!
glon.00 Longitude
Source: SGDR-E
Original-Parameter: lon
glat.00 Latitude
Source: SGDR-E
Original-Parameter: lat
gmlat.00 Geomagnetic Latitude
(geomag pole at 79.5,-71.6; epoch 2000)
tloc.00 Local Time
(h = glon/15 + UT - 12; UT = 24*mod(jday-0.5,1) )
ionos.06 Ionospheric Correction
Smoothed ionospheric correction based on ionos.00
vtec.06 Vertical Total Electron Content
(TECU=1*10^16e/m^2)
oflags.00 Orbit Status and Quality Flags
iflags.00 Instrument Status and Quality Flags
Source: SGDR-E
Original-Parameter: agc_rms_ku, agc_ku, swh_rms_ku, swh_ku, range_numval_ku, rain_flag, ice_flag, range_ku, range_rms_ku
Flags:
1 : agc_rms_ku/agc_ku > 0.1
2 : swh_rms_ku/swh_ku > 0.1
8 : range_numval_ku < 12
64 : rain_flag != 0 || ice_flag != 0
128 : range_ku == nan || range_rms_ku == nan

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