The first part of the table is the current table, as presented in the STC-1.30 documentation (table 6).
| Xlink Tag | Target | Time | Space | Spectral | Redshift | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| ivo://STClib/CoordSys# | Time Scale | Ref Pos | Ref Frame | Ref Pos | Flavor | Unit | Ref Pos | Redshift/Doppler | Ref Pos | |
| TT-ICRS-TOPO | Earth | TT | TOPO | ICRS | TOPO | Sphere | ||||
| TT-FK5-TOPO | EarthTT | TOPO | FK5 | TOPO | Sphere | |||||
| UTC-ICRS-TOPOEarth | UTC | TOPO | ICRS | TOPO | Sphere | |||||
| UTC-FK5-TOPO | Earth | UTC | TOPO | FK5 | TOPO | Sphere | ||||
| TT-ICRS-GEO | Earth | TT | GEO | ICRS | GEO | Sphere | ||||
| TT-FK5-GEO | Earth | TT | GEO | FK5 | GEO | Sphere | ||||
| UTC-ICRS-GEOEarth | UTC | GEO | ICRS | GEO | Sphere | |||||
| UTC-FK5-GEO | Earth | UTC | GEO | FK5 | GEO | Sphere | ||||
| TDB-ICRS-BARY | Earth | TDB | BARY | ICRS | BARY | Sphere | ||||
| TDB-FK5-BARYEarth | TDB | BARY | FK5 | BARY | Sphere | |||||
| TT-ICRS-BARYEarth | TT | BARY | ICRS | BARY | Sphere | |||||
| TDB-ECLIPTIC-BARY | Earth | TDB | BARY | ECLIPTIC | BARY | Sphere | ||||
| TDB-UNIT-ECLIPTIC-BARYEarth | TDB | BARY | ECLIPTIC | BARY | Unit Sphere | |||||
| UTC-HPC-TOPO | Earth | UTC | TOPO | HPC | TOPO | Cart 2Cart2 | ||||
| UTC-HPR-TOPOEarth | UTC | TOPO | HPR | TOPO | Polar | |||||
| UTC-HGS-TOPOEarth | UTC | TOPO | HGS | TOPO | Sphere | |||||
| UTC-HGC-TOPOEarth | UTC | TOPO | HGC | TOPO | Sphere | |||||
| TT-ICRS-HZ-TOPOEarth | TT | TOPO | ICRS | TOPO | Sphere | Hz | TOPO | |||
| TT-ICRS-OPT-BARY-TOPO | Earth | TT | TOPO | ICRS | TOPO | Sphere | DoppOptic | BARY | ||
| TT-ICRS-RADIO-LSR-TOPO | Earth | TT | TOPO | ICRS | TOPO | Sphere | DoppRadio | LSR | ||
Possible Additions (under discussion!) | ||||||||||
| UTC-HPCHGC-HELIOSun | UTC | HELIO | HPCHGC | HELIO | Sphere | |||||
| UTC-HRTN-STA | Stereo-A | UTC | STA | HRTN | STA | Cart | ||||
| SCET-HRTN-STA | Stereo-A | SCET | STA | HRTN | STA | Cart | ||||
| UTC-S3-JUPITER-BARYJupiter | UTC | BARYJUPITER | System III | BARYJUPITER | Sphere | |||||
| UTC-JSM-JOVIJUPITER-SPH | UTC | JUPITER | JSM | JUPITER | Sphere | |||||
| UTC-JSM-JUPITER-CARJupiter | UTC | JOVIJUPITER | JSM | JOVIJUPITER | SphereCart | |||||