Home › Other Active Satellites › SITRO-AIS 16
SITRO-AIS 16 — Live Satellite Tracking (NORAD 61737)
Track SITRO-AIS 16 (NORAD catalog number 61737) 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 C of 2024's 199th orbital launch (COSPAR designation 2024-199C). It went up together with 46 other satellites from that launch still in the active catalog. As of this element set it had completed roughly 14,410 revolutions of Earth.
Moving at about 7.58 km/s, SITRO-AIS 16 flies in low Earth orbit at an altitude of roughly 575 × 585 km, completing one revolution every 96.1 minutes — about 15.0 trips around Earth per day. The orbit is essentially circular (eccentricity 0.0007). Its 97.3° 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 84.5°. Earth's equatorial bulge precesses that plane eastward about 0.94° per day, matching the Sun's apparent motion — which is what holds its lighting constant.
Orbital elements
| Orbit regime | low Earth orbit (LEO) |
|---|---|
| Perigee × apogee altitude | ~575 km × 585 km |
| Inclination | 97.32° |
| Orbital period | 96.1 min (14.98 rev/day) |
| Eccentricity | 0.00072 |
| Element set epoch | 2026-09-07 |
| COSPAR designation | 2024-199C |
| NORAD catalog number | 61737 |
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
SITRO-AIS 16 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 SITRO-AIS 16 from the ground?
Sometimes. Like most low-Earth-orbit spacecraft, SITRO-AIS 16 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 SITRO-AIS 16 in the Other Active Satellites group — usually craft from the same or adjacent launches:
- IONOSFERA-M 2 (NORAD 61736)
- SITRO-AIS 15 (NORAD 61738)
- IONOSFERA-M 1 (NORAD 61735)
- SITRO-AIS 21 (NORAD 61739)
- SITRO-AIS 22 (NORAD 61740)
- DSN-3 (KIRAMEKI-3) (NORAD 61733)
Browse the Other Active Satellites directory or the full satellite directory · What is a TLE? · WatchSat live globe