Key statistics
Satellite SARA at a glance.
Uptime
12462
Days in orbit
Revolutions
≈ 14.6
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.1
Latest
Satellite identification and parameters
Extended collection of information and parameters for SARA.
Object identification
Identified? True
Debris? False
Object name: SARA
International designator: 1991-050E
Object number (NORAD): 21578
Object ID (CCSDS): 21578
Country: FRANCE (FR)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 98.737 minutes
Inclination: 98.1399 deg
SMA: 7076.43 km
Apoapsis: 700.186 km
Periapsis: 696.403 km
RAAN: 290.9778 deg
Eccentricy: 0.00026729
Argument of periapsis: 27.5472 deg
Mean anomaly: 89.2929 deg
Mean motion: 14.58416136 rev/day
Mean motion (dot): 0.0000106 rev/day2
B* drag term: 0.00023842348 1/REarth
Two-line elements (TLE)
Creation date: Aug. 29, 2025, 2:15 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Aug. 28, 2025, 5:45 p.m. UTC
TLE line 0: 0 SARA
TLE line 1: 1 21578U 91050E 25240.73984001 .00001060 00000-0 23842-3 0 9992
TLE line 2: 2 21578 98.1399 290.9778 0002673 27.5472 89.2929 14.58416136803673
Live tracking on map
Real-time ground track for satellite SARA.
In-orbit conjunctions
A list of the most updated potential collisions computed for object SARA.
Associated space launch
ERS (European Remote Sensing Satellite) are a family of multi-disciplinary Earth Observation Satellites.
SARA was lifted into orbit during the mission ‘Ariane 40 | ERS-1’, on board a Ariane 40 space rocket.
The launch took place on July 17, 1991, 1:46 a.m. from Ariane Launch Area 2.
For more information about the launch, click the button.
Ariane 40 | ERS-1
Agency: N/A
Status: Launch Successful
Launch date: July 17, 1991, 1:46 a.m. UTC
Rocket: Ariane 40
Launch pad: Ariane Launch Area 2
Location: Guiana Space Centre, French Guiana
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