Key statistics
Satellite SARA at a glance.
Uptime
12512
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: 98.727 minutes
Inclination: 98.1319 deg
SMA: 7075.941 km
Apoapsis: 699.584 km
Periapsis: 696.029 km
RAAN: 340.064 deg
Eccentricy: 0.00025116
Argument of periapsis: 170.6343 deg
Mean anomaly: 268.616 deg
Mean motion: 14.58567146 rev/day
Mean motion (dot): 0.00001468 rev/day2
B* drag term: 0.000325266 1/REarth
Two-line elements (TLE)
Creation date: Oct. 18, 2025, 2:17 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 17, 2025, 9:11 p.m. UTC
TLE line 0: 0 SARA
TLE line 1: 1 21578U 91050E 25290.88284703 .00001468 00000-0 32527-3 0 9997
TLE line 2: 2 21578 98.1319 340.0640 0002512 170.6343 268.6160 14.58567146810989
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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