| Name | Description |
|---|---|
| AnalysisStartTime | Scenario analysis start time. |
| AnalysisStopTime | Scenario analysis stop time. |
| AnimationStartTime | Scenario animation start time. |
| AnimationStopTime | Scenario animation stop time. |
| B1950Epoch | Epoch of the beginning of the Besselian year 1950 (31 December 1949 22:09:46.866 = JD 2433282.4234591). |
| J2000Epoch | Epoch of 1 January 2000 12:00:00.00 TT (1 January 2000 11:58:55.816 UTC). |
| ReferenceEpoch | Scenario reference epoch. |
| Today | Local midnight today. |
| Tomorrow | Local midnight tomorrow. |
STK Programming Interface 11.0.1