Key statistics
Satellite PROBA 1 at a glance.
Uptime
8659
Days in orbit
Revolutions
≈ 15.1
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
97.9
Latest
Satellite identification and parameters
Extended collection of information and parameters for PROBA 1.
Object identification
Identified? True
Debris? False
Object name: PROBA 1
International designator: 2001-049B
Object number (NORAD): 26958
Object ID (CCSDS): 26958
Country: EUROPEAN SPACE AGENCY (ESA)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 95.659 minutes
Inclination: 97.9484 deg
SMA: 6928.557 km
Apoapsis: 589.633 km
Periapsis: 511.21 km
RAAN: 180.0425 deg
Eccentricy: 0.0056594
Argument of periapsis: 207.7866 deg
Mean anomaly: 152.0334 deg
Mean motion: 15.05353833 rev/day
Mean motion (dot): 0.00001019 rev/day2
B* drag term: 0.000073508 1/REarth
Two-line elements (TLE)
Creation date: July 6, 2025, 10:46 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 6, 2025, 9:08 p.m. UTC
TLE line 0: 0 PROBA 1
TLE line 1: 1 26958U 01049B 25187.88103570 .00001019 00000-0 73508-4 0 9997
TLE line 2: 2 26958 97.9484 180.0425 0056594 207.7866 152.0334 15.05353833291699
Live tracking on map
Real-time ground track for satellite PROBA 1.
In-orbit conjunctions
There are no conjunctions computed for PROBA 1, at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
Technology Experiment Satellite (TES) is Indian remote sensing and photo-reconnaissance satellite. The 1108 kg satellite carries a one-meter resolution panchromatic camera is an experimental satellite to demonstrate and validate, in orbit, technologies that could be used in the future satellites of Indian Space Research Organisation (ISRO). It was successfully placed in 572 km Sun-synchronous orbit on 22 October 2001 using the PSLV-C3. The PSLV-C3 also injected two more satellites: PROBA, a Belgian satellite and BIRD, a German satellite.
PROBA 1 was lifted into orbit during the mission ‘PSLV | TES’, on board a PSLV space rocket.
The launch took place on Oct. 22, 2001, 4:53 a.m. from Satish Dhawan Space Centre First Launch Pad.
For more information about the launch, click the button.
PSLV | TES
Agency: N/A
Status: Launch Successful
Launch date: Oct. 22, 2001, 4:53 a.m. UTC
Rocket: PSLV
Launch pad: Satish Dhawan Space Centre First Launch Pad
Location: Satish Dhawan Space Centre, India
...
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