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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25544 intel report (Beta)
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ISS (ZARYA) radio frequencies
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Edit Public Description
| Identifier | |
| Orbit | LEO |
| Last TLE update | 8 hours ago |
| Origin | |
| Manufacturer | Khrunichev |
| Mission | Operational Civil Spaceship |
| Bus & Motor | 77KS, Unknown motor |
| Mass | 20,351 kg wet, ~19,000 kg dry |
| Launch date (UTC) | |
| Launch vehicle | |
| Launch site | |
| 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 8 hours ago
0 ISS (ZARYA)
1 25544U 98067A 25090.00056293 .00018448 00000-0 32665-3 0 9991
2 25544 51.6391 334.2594 0003713 67.1199 74.3511 15.50327493503035Epoch: 2025-03-31T00:00Z
Definitive object data (Epoch: 2025-03-31T00:00:48.637Z)
| Latitude | 29.30245° |
| Longitude | -60.78009° |
| Altitude | 416.512 km |
| Speed | 7.666 km/s |
| True Right ascension | 08h 32m 10s |
| True Declination | 29° 08' 55" |
| Sunlit | Object was in full shadow at TLE epoch |
Visualization TLE readout
| Latitude | -36.17432° |
| Longitude | 108.54928° |
| Altitude | 428.303 km |
| Speed | 7.654 km/s |
| Apparent Right ascension | 22h 42m 43s |
| Apparent Declination | -48° 32' 23" |
| Sunlit | Object is in daylight |
Visualization observer readout
| Local Sidereal Time | 14:04:10 |
| Azimuth | 120.785° SE |
| Elevation | -53.592° |
| Doppler factor | 1 |
Orbital elements
| Apogee altitude | 418.8 km |
| Perigee altitude | 413.755 km |
| Semi-major axis | 6,794.414 km |
| Eccentricity | 0.0003713 |
| Inclination | 51.6391° |
| RAAN | 334.2594° |
| Arg. of periapsis | 67.1199° |
| True anomaly | 74.39208° |
| Mean anomaly | 74.3511° |
| Eccentric anomaly | 74.37159° |
| Mean motion | 3.87539 °/min |
| BSTAR | 0.00032665 |
| Orbital period | 92.89 mins |
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Other satellites on launch #67 in the year 1998 (1998-11-20 UTC)
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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2025-03-31 18:07:46.027Z | 182.469° SSW | 2025-03-31 18:09:46.027Z | 143.334° SSE | 19.888° | 2025-03-31 18:11:46.027Z | 93.869° ESE |
| 5 mins | 2025-03-31 19:44:46.027Z | 267.104° W | 2025-03-31 19:46:46.027Z | 332.41° NNW | 32.826° | 2025-03-31 19:49:46.027Z | 40.416° NE |
| 4 mins | 2025-04-01 00:37:46.027Z | 337.873° N | 2025-04-01 00:39:46.027Z | 38.716° NE | 26.887° | 2025-04-01 00:41:46.027Z | 86.274° E |
| 4 mins | 2025-04-01 02:14:46.027Z | 269.471° W | 2025-04-01 02:15:46.027Z | 241.571° WSW | 26.202° | 2025-04-01 02:18:46.027Z | 164.596° S |
Event ID | Pc | Md | Secondary | Secondary name | Country | Click to unsort rows by TCA header |
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