| Product: | Vertical Total Electron Content (VTEC) |
| Version: | 06 |
| Mission: | Envisat |
| 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
East longitude relative to Greenwich meridian Source: SGDR v3.0 Original-Parameter: lon_01 |
| glat.00 | Latitude
Positive latitude is North latitude, negative latitude is South latitude Source: SGDR v3.0 Original-Parameter: lat_01 |
| 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
Source: SGDR v3.0 Original-Parameter: bathymetry, rad_surf_type, alt_echo_type,surface_type, orb_state_flag_rest Flags: 2 : bathymetry > -2000 | 4 : bathymetry > -200 | 8 : rad_surf_type != 0 or alt_echo_type != 0 | 16 : surface_type != 0 | 128 : hsat == 2147483647 |
| iflags.00 | Instrument Status and Quality Flags
Source: SGDR v3.0 Original-Parameter: range_ocean_01_ku, range_ocean_rms_01_ku, swh_ocean_01_ku, swh_ocean_rms_01_ku Flags: 2 : swh_ocean_rms_01_ku == 0 or swh_ocean_rms_01_ku == 32767 or swh_ocean_01_ku == 0 or swh_ocean_01_ku == 32767 or stdswh/swh > 0.1 8 : range_numval_ku < 12 128 : range_ocean_01_ku == 2147483647 or range_ocean_rms_01_ku == 2147483647 |