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Short product names
CH_TEC_TMS_2F
Full product name
Time series of the ionospheric Total Electron Content (TEC) derived for the CHAMP satellite
Description
Integrated electron density along the line of sight from CHAMP to GNSS satellites
Data Access
- Files
- HTTPS (Product files): https://swarm-diss.eo.esa.int/#swarm/Multimission/CHAMP/TEC
- FTP (Product files): ftp://swarm-diss.eo.esa.int/Multimission/CHAMP/TEC
Output variables
| Variable Name | Type | Dim | Unit | Description |
|---|---|---|---|---|
| Timestamp | CDF_EPOCH | 1 | ms | Time of observation, UTC |
| Latitude | CDF_DOUBLE | 1 | deg | CHAMP position in ITRF – Geocentric latitude |
| Longitude | CDF_DOUBLE | 1 | deg | CHAMP position in ITRF – Geocentric longitude |
| Radius | CDF_DOUBLE | 1 | m | CHAMP position in ITRF – Geocentric radius (from the Earth centre) |
| GPS_Position | CDF_DOUBLE | 3 | m | X-, Y-, Z-coordinates of the GPS satellite |
| LEO_Position | CDF_DOUBLE | 3 | m | X-, Y-, Z-coordinates of the CHAMP satellite |
| PRN | CDF_UINT2 | 1 | - | Pseudorandom noise (PRN) code of GPS satellite |
| L1 | CDF_DOUBLE | 1 | m | GPS L1C (L1 in RINEX v.2.10) carrier phase observation |
| L2 | CDF_DOUBLE | 1 | m | GPS L2W (L2 in RINEX v.2.10) carrier phase observation |
| P1 | CDF_DOUBLE | 1 | m | GPS C1W (P1 in RINEX v.2.10) code phase observation |
| P2 | CDF_DOUBLE | 1 | m | GPS C2W (P2 in RINEX v.2.10) code phase observation |
| S1_C_N0 | CDF_DOUBLE | 1 | dB-Hz | GPS S1 carrier-to-noise density C/N0 [AD-4] (Sect. 3.1.2.2) |
| S2_C_N0 | CDF_DOUBLE | 1 | dB-Hz | GPS S2 carrier-to-noise density C/N0 [AD-4] (Sect. 3.1.2.2) |
| Absolute_STEC | CDF_DOUBLE | 1 | TECU | Absolute slant TEC |
| Absolute_VTEC | CDF_DOUBLE | 1 | TECU | Absolute vertical TEC |
| Elevation_Angle | CDF_DOUBLE | 1 | deg | Elevation angle |
| Relative_STEC | CDF_DOUBLE | 1 | TECU | Relative slant TEC |
| Relative_STEC_ RMS | CDF_DOUBLE | 1 | TECU | Root mean square of relative slant TEC2 |
| DCB | CDF_DOUBLE | 1 | TECU | GPS receiver differential code bias (DCB3) (P2–P1) |
| DCB_Error | CDF_DOUBLE | 1 | TECU | Post fit RMS of the least square system using pairs of mapped slant TEC |