ISS (ZARYA), 25544

Orbit data source: Space-Track

The International Space Station (ISS) is a collaborative project involving NASA, Roscosmos, ESA, JAXA, and CSA. It is the largest human-made structure in low Earth orbit (LEO). It serves as a microgravity laboratory where scientific research is conducted in various fields, such as astrobiology, astronomy, meteorology, and physics. Astronauts have continuously inhabited the ISS since Nov 2000, and the space station supports testing spacecraft systems and equipment needed for long-duration missions to the Moon and Mars.

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<iframe src="https://www.satcat.com/sats-embedded/25544?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

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https://www.satcat.com/sats-embedded/25544?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

25544, 1998-067A

Orbit

LEO

Last TLE update

2 days ago

Origin

National Aeronautics and Space Administration (NASA) (ISS)

Manufacturer

Khrunichev

Mission

Operational Civil Spaceship

Bus & Motor

77KS, Unknown motor

Mass

20,351 kg wet, ~19,000 kg dry

Launch date (UTC)

1998-11-20 (26 years ago)

Launch vehicle

PROTON-K

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl + 2 Pan, 109 m

Radar Cross Section

160.273 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 2 days ago

0 ISS (ZARYA)
1 25544U 98067A   25119.19035294  .00013779  00000-0  25440-3 0  9996
2 25544  51.6352 189.7367 0002491  81.0639 279.0631 15.49383308507563

Epoch: 2025-04-29T04:34Z

Definitive object data (Epoch: 2025-04-29T04:34:06.494Z)

Latitude

-0.00004°

Longitude

-96.18397°

Altitude

419.003 km

Speed

7.661 km/s

True Right ascension

12h 38m 56s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at TLE epoch

Visualization TLE readout

Latitude

43.98323°

Longitude

-55.74255°

Altitude

421.14 km

Speed

7.665 km/s

Apparent Right ascension

17h 33m 47s

Apparent Declination

4° 23' 11"

Sunlit

Object is in full shadow

Visualization observer readout

Local Sidereal Time

07:46:55

Azimuth

42.671° NE

Elevation

-36.175°

Doppler factor

Orbital elements

Apogee altitude

420.731 km

Perigee altitude

417.344 km

Semi-major axis

6,797.175 km

Eccentricity

0.0002491

Inclination

51.6352°

RAAN

189.7367°

Arg. of periapsis

81.0639°

True anomaly

279.03491°

Mean anomaly

279.0631°

Eccentric anomaly

279.04901°

Mean motion

3.87303 °/min

BSTAR

0.0002544

Orbital period

92.95 mins

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Other satellites on launch #67 in the year 1998 (1998-11-20 UTC)

ISS DEB, 28409 (Decayed)

ISS DEB, 28410 (Decayed)

ISS DEB, 28411 (Decayed)

ISS DEB, 28412 (Decayed)

ISS DEB, 28386 (Decayed)

ISS DEB, 28635 (Decayed)

ISS DEB, 28792 (Decayed)

ISS DEB, 29191 (Decayed)

ISS DEB, 29257 (Decayed)

ISS DEB, 29638 (Decayed)

ISS DEB, 29639 (Decayed)

ISS DEB (SOCKET EXT), 29681 (Decayed)

ISS DEB (CAMERA), 29677 (Decayed)

ISS DEB, 30425 (Decayed)

ISS (ZARYA) Visibility forecast

Observer location: undefined°, undefined°

Span	Click to sort rows by Start time (UTC) header in descending order	Start Az.	Max El. time (UTC)	Max El. Az.	Max El.	End time (UTC)	End Az.
5 mins	2025-05-01 06:15:39.100Z	196.24° SSW	2025-05-01 06:18:39.100Z	130.612° SE	25.765°	2025-05-01 06:20:39.100Z	81.156° E
4 mins	2025-05-01 07:53:39.100Z	281.182° WNW	2025-05-01 07:55:39.100Z	346.364° N	27.579°	2025-05-01 07:57:39.100Z	31.48° NE
4 mins	2025-05-01 12:46:39.100Z	335.408° NNW	2025-05-01 12:48:39.100Z	49.657° ENE	31.018°	2025-05-01 12:50:39.100Z	95.998° ESE

Authenticating...

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Check out ISS (ZARYA), 25544 on other resources

View ISS (ZARYA), 25544 on NASA - NSSDCA Website

View ISS (ZARYA), 25544 on Heavens-Above

View ISS (ZARYA), 25544 on Keep Track

View ISS (ZARYA), 25544 on Celestrak

View ISS (ZARYA), 25544 on Gunter's Space Page

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