Home › Other Active Satellites › 2021-091D
2021-091D — Live Satellite Tracking (NORAD 49318)
Track 2021-091D (NORAD catalog number 49318) live on the WatchSat interactive 3D globe above. Its position is propagated in real time from the latest CelesTrak two-line element set using the SGP4/SDP4 orbital model — the same math professional trackers run. It is object D of 2021's 91st orbital launch (COSPAR designation 2021-091D). It went up together with 1 other satellite from that launch still in the active catalog. As of this element set it had completed roughly 25,957 revolutions of Earth.
Moving at about 7.41 km/s, 2021-091D flies in low Earth orbit at an altitude of roughly 891 × 910 km, completing one revolution every 102.8 minutes — about 14.0 trips around Earth per day. The orbit is essentially circular (eccentricity 0.0013). Its 97.4° retrograde, near-polar inclination is characteristic of a Sun-synchronous orbit — the type Earth-imaging and weather satellites use to revisit each spot at the same local solar time. Its orbital plane crosses the equator northbound at right ascension 267.9°. Earth's equatorial bulge drifts that plane eastward about 0.82° per day.
Orbital elements
| Orbit regime | low Earth orbit (LEO) |
|---|---|
| Perigee × apogee altitude | ~891 km × 910 km |
| Inclination | 97.45° |
| Orbital period | 102.8 min (14.00 rev/day) |
| Eccentricity | 0.00131 |
| Element set epoch | 2026-09-07 |
| COSPAR designation | 2021-091D |
| NORAD catalog number | 49318 |
This page's orbital elements come from the CelesTrak catalog of 2026-09-08. The live 3D view above fetches its own current CelesTrak data when the page opens, through an edge cache that refreshes roughly every 30 minutes.
About the Other Active Satellites group
2021-091D is one of 4,471 active satellites in WatchSat's general catalog — the broad population of Earth-observation, communications, science, amateur-radio and technology spacecraft outside the giant broadband constellations. Browse all other active satellites live in 3D.
Can you see 2021-091D from the ground?
Sometimes. Like most low-Earth-orbit spacecraft, 2021-091D is visible only around dawn and dusk, when your sky is dark but the satellite is still sunlit — and whether you can spot it depends on its size and reflectivity. See pass predictions for your location for when it is above your horizon and sunlit.
Related satellites
Nearest catalog neighbors of 2021-091D in the Other Active Satellites group — usually craft from the same or adjacent launches:
- 2021-091B (NORAD 49316)
- SHIJIAN-21 (SJ-21) (NORAD 49330)
- SES-17 (NORAD 49332)
- SYRACUSE 4A (NORAD 49333)
- QZS-1R (MICHIBIKI-1R) (NORAD 49336)
- JILIN-1 GAOFEN 2F (NORAD 49338)
Browse the Other Active Satellites directory or the full satellite directory · What is a TLE? · WatchSat live globe