Key statistics
Satellite ESSAIM-1 at a glance.
Uptime
7666
Days in orbit
Revolutions
≈ 14.9
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.3
Latest
Satellite identification and parameters
Extended collection of information and parameters for ESSAIM-1.
Object identification
Identified? True
Debris? False
Object name: ESSAIM-1
International designator: 2004-049C
Object number (NORAD): 28494
Object ID (CCSDS): 28494
Country: FRANCE (FR)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 96.92 minutes
Inclination: 98.3258 deg
SMA: 6989.356 km
Apoapsis: 611.9 km
Periapsis: 610.541 km
RAAN: 203.28 deg
Eccentricy: 0.00009719
Argument of periapsis: 73.9084 deg
Mean anomaly: 286.2236 deg
Mean motion: 14.85754521 rev/day
Mean motion (dot): 0.00001961 rev/day2
B* drag term: 0.00023257802 1/REarth
Two-line elements (TLE)
Creation date: Dec. 14, 2025, 3:07 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 13, 2025, 2:15 p.m. UTC
TLE line 0: 0 ESSAIM-1
TLE line 1: 1 28494U 04049C 25347.59378907 .00001961 00000-0 23258-3 0 9993
TLE line 2: 2 28494 98.3258 203.2800 0000972 73.9084 286.2236 14.85754521130722
Live tracking on map
Real-time ground track for satellite ESSAIM-1.
In-orbit conjunctions
There are no conjunctions computed for ESSAIM-1, at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
Helios and Essaim are French miltary satellites for observation of Earth. Parasol is an Earth Observation research satellite.Nanosat 01 is a small technologu demonstator for the spanish space agency INTA.
ESSAIM-1 was lifted into orbit during the mission ‘Ariane 5 G+ | Helios 2A, Essaim 1, 2, 3, 4, PARASOL, Nanosat 01’, on board a Ariane 5 G+ space rocket.
The launch took place on Dec. 18, 2004, 4:26 p.m. from Ariane Launch Area 3.
For more information about the launch, click the button.
Ariane 5 G+ | Helios 2A, Essaim 1, 2, 3, 4, PARASOL, Nanosat 01
Agency: N/A
Status: Launch Successful
Launch date: Dec. 18, 2004, 4:26 p.m. UTC
Rocket: Ariane 5 G+
Launch pad: Ariane Launch Area 3
Location: Guiana Space Centre, French Guiana
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Latest news about this satellite
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