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TJS-27B — Live Satellite Tracking (NORAD 100176)

Track TJS-27B (NORAD catalog number 100176) 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 2026's 173rd orbital launch (COSPAR designation 2026-173C). 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 1,106 revolutions of Earth.

Moving at about 7.28 km/s, TJS-27B flies in low Earth orbit at an altitude of roughly 1,158 × 1,164 km, completing one revolution every 108.4 minutes — about 13.3 trips around Earth per day. The orbit is essentially circular (eccentricity 0.0004). Inclined 64.8° to the equator, it overflies every latitude up to about 65° north and south. Its orbital plane crosses the equator northbound at right ascension 78.6°. Earth's equatorial bulge drifts that plane westward about 2.37° per day.

Orbital elements

Orbit regime	low Earth orbit (LEO)
Perigee × apogee altitude	~1,158 km × 1,164 km
Inclination	64.79°
Orbital period	108.4 min (13.28 rev/day)
Eccentricity	0.00043
Element set epoch	2026-10-21
COSPAR designation	2026-173C
NORAD catalog number	100176

This page's orbital elements come from the CelesTrak catalog of 2026-10-23. 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

TJS-27B is one of 4,802 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 TJS-27B from the ground?

Sometimes. Like most low-Earth-orbit spacecraft, TJS-27B 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 the “When can I see it?” panel in the live view for when it is above your horizon and sunlit.

Related satellites

Nearest catalog neighbors of TJS-27B in the Other Active Satellites group — usually craft from the same or adjacent launches:

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