DELTA 1 R/B
Launch
Launched on Nov 18, 1989 from Space Launch Complex 2W, United States of America aboard a Delta 5920-8.
Delta 5920-8 | COBE →Live · TLE epoch 2026-09-08 22:48 UTC
Orbit class
SSO — Sun-Synchronous (LEO at 96–102° inclination)
Operator
United States Government
Country
United States
Manufacturer
—
Launched
Nov 18, 1989
Mass
—
Apogee
775 km
Perigee
679 km
Inclination
97.07°
Period
1.65 h
Altitude history
Apogee and perigee for DELTA 1 R/B across 103 days of archived orbital elements (105 element sets, one per day).
Trend
Stable
Change
-0.2 km
Rate
-0.00 km/day
Now
679 × 775 km
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.
Related satellites
Sources & further reading
Embed this satellite on your site
Free for editorial use. Attribution back to LowEarth is required.
<iframe src="https://lowearth.app/embed/20323" width="640" height="400" frameborder="0" allow="fullscreen"></iframe>