Key statistics
Satellite SL-16 DEB at a glance.
Uptime
9646
Days in orbit
Revolutions
≈ 14.5
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.4
Latest
Satellite identification and parameters
Extended collection of information and parameters for SL-16 DEB.
Object identification
Identified? True
Debris? True
Object name: SL-16 DEB
International designator: 1999-039D
Object number (NORAD): 25863
Object ID (CCSDS): 25863
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 99.555 minutes
Inclination: 98.3886 deg
SMA: 7115.447 km
Apoapsis: 843.132 km
Periapsis: 631.491 km
RAAN: 53.888 deg
Eccentricy: 0.014872
Argument of periapsis: 50.855 deg
Mean anomaly: 3.5807 deg
Mean motion: 14.46436997 rev/day
Mean motion (dot): 0.00001076 rev/day2
B* drag term: 0.00027293405 1/REarth
Two-line elements (TLE)
Creation date: Dec. 12, 2025, 10:14 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 12, 2025, 4:14 a.m. UTC
TLE line 0: 0 SL-16 DEB
TLE line 1: 1 25863U 99039D 25346.17699836 .00001076 00000-0 27293-3 0 9993
TLE line 2: 2 25863 98.3886 53.8880 0148720 50.8550 3.5807 14.46436997388066
Live tracking on map
Real-time ground track for satellite SL-16 DEB.
Associated space launch
Okean-O was a joint Ukrainian and Russian remote sensing satellite program designed as a follow on to the Okean-O1 series. It was designed to gather remote sensing data crucial for research of natural resources of the Earth and world oceans. The mission also included ecological monitoring and management of externalities (weather forecast, hazards prevention).
SL-16 DEB was lifted into orbit during the mission ‘Zenit-2 | Okean-O’, on board a Zenit-2 space rocket.
The launch took place on July 17, 1999, 5:38 a.m. from 45/1.
For more information about the launch, click the button.
Zenit-2 | Okean-O
Agency: N/A
Status: Launch Successful
Launch date: July 17, 1999, 5:38 a.m. UTC
Rocket: Zenit-2
Launch pad: 45/1
Location: Baikonur Cosmodrome, Republic of Kazakhstan
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