ARIANE 40 R/B
Launch
Launched on Jul 17, 1991 from Ariane Launch Area 2, French Guiana aboard a Ariane 40.
Ariane 40 | ERS-1 →Live · TLE epoch 2026-10-24 02:13 UTC
Orbit class
SSO — Sun-Synchronous (LEO at 96–102° inclination)
Operator
CNES
Country
France
Manufacturer
—
Launched
Jul 17, 1991
Mass
—
Apogee
756 km
Perigee
750 km
Inclination
98.17°
Period
1.66 h
Altitude history
Apogee and perigee for ARIANE 40 R/B across 148 days of archived orbital elements (150 element sets, one per day).
Trend
Stable
Change
-0.3 km
Rate
-0.00 km/day
Now
750 × 756 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.
Launched with
One other catalogued object still in orbit from launch 1991-050 (Ariane 40 | ERS-1).
- ERS-1 · 21574
Sources & further reading
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