Key statistics
Satellite HELIOS 2A at a glance.
Uptime
7570
Days in orbit
Revolutions
≈ 15.0
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.3
Latest
Satellite identification and parameters
Extended collection of information and parameters for HELIOS 2A.
Object identification
Identified? True
Debris? False
Object name: HELIOS 2A
International designator: 2004-049A
Object number (NORAD): 28492
Object ID (CCSDS): 28492
Country: FRANCE (FR)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 95.909 minutes
Inclination: 98.301 deg
SMA: 6940.626 km
Apoapsis: 566.546 km
Periapsis: 558.435 km
RAAN: 281.5181 deg
Eccentricy: 0.00058431
Argument of periapsis: 155.5374 deg
Mean anomaly: 204.6127 deg
Mean motion: 15.01429098 rev/day
Mean motion (dot): 0.000022 rev/day2
B* drag term: 0.00017568136 1/REarth
Two-line elements (TLE)
Creation date: Sept. 8, 2025, 6:18 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 8, 2025, 2:40 p.m. UTC
TLE line 0: 0 HELIOS 2A
TLE line 1: 1 28492U 04049A 25251.61118766 .00002200 00000-0 17568-3 0 9997
TLE line 2: 2 28492 98.3010 281.5181 0005843 155.5374 204.6127 15.01429098111491
Live tracking on map
Real-time ground track for satellite HELIOS 2A.
In-orbit conjunctions
There are no conjunctions computed for HELIOS 2A, 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.
HELIOS 2A 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
There are no fresh news available about this satellite. Check back as we update our databases every day.
Newsletter sign-up
Weekly statistics, charts and insights to help you stay on top of the space industry.
