Key statistics
Satellite ESSAIM-4 at a glance.
Uptime
7617
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-4.
Object identification
Identified? True
Debris? False
Object name: ESSAIM-4
International designator: 2004-049F
Object number (NORAD): 28497
Object ID (CCSDS): 28497
Country: FRANCE (FR)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 96.822 minutes
Inclination: 98.2804 deg
SMA: 6984.644 km
Apoapsis: 607.672 km
Periapsis: 605.345 km
RAAN: 169.9476 deg
Eccentricy: 0.00016658
Argument of periapsis: 49.6905 deg
Mean anomaly: 310.4455 deg
Mean motion: 14.87258204 rev/day
Mean motion (dot): 0.00002113 rev/day2
B* drag term: 0.00024111601 1/REarth
Two-line elements (TLE)
Creation date: Oct. 25, 2025, 3:11 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 24, 2025, 1:11 p.m. UTC
TLE line 0: 0 ESSAIM-4
TLE line 1: 1 28497U 04049F 25297.54988334 .00002113 00000-0 24112-3 0 9996
TLE line 2: 2 28497 98.2804 169.9476 0001666 49.6905 310.4455 14.87258204124423
Live tracking on map
Real-time ground track for satellite ESSAIM-4.
In-orbit conjunctions
There are no conjunctions computed for ESSAIM-4, 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-4 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
...
Latest news about this satellite
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