LowEarth

TRANSAT

NORAD 10457· COSPAR 1977-106A· Navigation· LEO
Launch
Launched on Oct 28, 1977 from Space Launch Complex 5, United States of America aboard a Scout D-1.
Scout D-1 | Transat O-11
Live · TLE epoch 2026-09-08 22:51 UTC
Orbit class
LEO — Low Earth Orbit (circular, < 2,000 km)
Operator
United States Government
Country
United States
Manufacturer
Launched
Oct 28, 1977
Mass
Apogee
1,100 km
Perigee
1,060 km
Inclination
89.64°
Period
1.78 h

Altitude history

Apogee and perigee for TRANSAT across 103 days of archived orbital elements (104 element sets, one per day).

Trend
Stable
Change
-0.0 km
Rate
-0.00 km/day
Now
1060 × 1100 km
108011011060May 29Sep 9
Apogee Perigee

Derived from our own archive of CelesTrak orbital elements, sampled every 3 hours. Short windows show drag and station-keeping; they are not a reentry prediction.

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