Key statistics
Satellite ISS (ZARYA) at a glance.
Uptime
9614
Days in orbit
Revolutions
≈ 15.5
Per day
Orbit
LEO
Low Earth Orbit
Inclination
51.6
Latest
Satellite identification and parameters
Extended collection of information and parameters for ISS (ZARYA).
Object identification
Identified? True
Debris? False
Object name: ISS (ZARYA)
International designator: 1998-067A
Object number (NORAD): 25544
Object ID (CCSDS): 25544
Country: INTERNATIONAL SPACE STATION (ISS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 92.898 minutes
Inclination: 51.6371 deg
SMA: 6794.594 km
Apoapsis: 420.841 km
Periapsis: 412.077 km
RAAN: 43.6019 deg
Eccentricy: 0.0006449
Argument of periapsis: 30.6766 deg
Mean anomaly: 77.0356 deg
Mean motion: 15.50092071 rev/day
Mean motion (dot): 0.00018314 rev/day2
B* drag term: 0.0003269 1/REarth
Two-line elements (TLE)
Creation date: March 17, 2025, 12:56 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: March 17, 2025, 12:04 a.m. UTC
TLE line 0: 0 ISS (ZARYA)
TLE line 1: 1 25544U 98067A 25076.00334238 .00018314 00000-0 32690-3 0 9993
TLE line 2: 2 25544 51.6371 43.6019 0006449 30.6766 77.0356 15.50092071500866
Live tracking on map
Real-time ground track for satellite ISS (ZARYA).
Associated space launch
The Zarya Control Module, also known by the technical term Functional Cargo Block and the Russian acronym FGB, was the first component launched for the International Space Station. This module was designed to provide the station's initial propulsion and power. The 19,323 kilogram pressurized module was launched on a Russian Proton rocket in November 1998.
ISS (ZARYA) was lifted into orbit during the mission ‘Proton | Zarya’, on board a Proton space rocket.
The launch took place on Nov. 20, 1998, 6:40 a.m. from 81/23 (81L).
For more information about the launch, click the button.
Proton | Zarya
Agency: N/A
Status: Launch Successful
Launch date: Nov. 20, 1998, 6:40 a.m. UTC
Rocket: Proton
Launch pad: 81/23 (81L)
Location: Baikonur Cosmodrome, Republic of Kazakhstan
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