Key statistics
Satellite PROBA 1 at a glance.
Uptime
8765
Days in orbit
Revolutions
≈ 15.1
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.0
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: 95.615 minutes
Inclination: 97.9571 deg
SMA: 6926.431 km
Apoapsis: 586.937 km
Periapsis: 509.656 km
RAAN: 289.4043 deg
Eccentricy: 0.00557871
Argument of periapsis: 210.0934 deg
Mean anomaly: 149.7083 deg
Mean motion: 15.06046813 rev/day
Mean motion (dot): 0.00004918 rev/day2
B* drag term: 0.00033008981 1/REarth
Two-line elements (TLE)
Creation date: Oct. 21, 2025, 3:26 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 20, 2025, 10:44 p.m. UTC
TLE line 0: 0 PROBA 1
TLE line 1: 1 26958U 01049B 25293.94789552 .00004918 00000-0 33009-3 0 9994
TLE line 2: 2 26958 97.9571 289.4043 0055787 210.0934 149.7083 15.06046813307591
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
...
Latest news about this satellite
Newsletter sign-up
Weekly statistics, charts and insights to help you stay on top of the space industry.
