Loading…
Loading contentLoading…
Loading contentCommunication and timing systems — optical relays, TDRS, telemetry/tracking/command, and time standards.
Generated from the canonical knowledge graph. Open, machine-readable, and free to reuse under CC BY-SA 4.0.
| Name | Type | ID |
|---|---|---|
| Apparent Solar Time | Time standard | time_standard:apparent-solar-time |
| Barycentric Dynamical Time | Time standard | time_standard:barycentric-dynamical-time |
| Coordinated Universal Time (UTC) | Time standard | time_standard:utc |
| Deep Space Optical Communications (DSOC) | Communication system | communication_system:dsoc |
| GPS Time | Time standard | time_standard:gps-time |
| International Atomic Time (TAI) | Time standard | time_standard:tai |
| Julian Date | Time standard | time_standard:julian-date |
| Laser Communications Relay Demonstration (LCRD) | Communication system | communication_system:lcrd |
| Sidereal Time | Time standard | time_standard:sidereal-time |
| Spacecraft Clock (SCLK) | Time standard | time_standard:spacecraft-clock |
| Telemetry, Tracking & Command (TT&C) | Communication system | communication_system:telemetry-tracking-command |
| Terrestrial Time | Time standard | time_standard:terrestrial-time |
| The Leap Second | Time standard | time_standard:leap-second |
| Tracking and Data Relay Satellite System (TDRS) | Communication system | communication_system:tdrs |
| Universal Time (UT1) | Time standard | time_standard:ut1 |
Facts on this topic will be cited from these primary and reference sources.
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.
Orbital data, ephemerides, and small-body parameters for planets, asteroids, and comets.