Key statistics
Satellite SL-16 DEB at a glance.
Uptime
9590
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: 99.567 minutes
Inclination: 98.3948 deg
SMA: 7116.004 km
Apoapsis: 842.999 km
Periapsis: 632.738 km
RAAN: 359.2197 deg
Eccentricy: 0.01477382
Argument of periapsis: 217.6878 deg
Mean anomaly: 221.5439 deg
Mean motion: 14.46267159 rev/day
Mean motion (dot): 0.00001585 rev/day2
B* drag term: 0.00039897089 1/REarth
Two-line elements (TLE)
Creation date: Oct. 18, 2025, 2:17 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 17, 2025, 11:26 p.m. UTC
TLE line 0: 0 SL-16 DEB
TLE line 1: 1 25863U 99039D 25290.97645075 .00001585 00000-0 39897-3 0 9993
TLE line 2: 2 25863 98.3948 359.2197 0147738 217.6878 221.5439 14.46267159380082
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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