GLOBALSTAR M023, 25621
Orbit data source: Space-Track
GLOBALSTAR M023, 25621 is a payload satellite owned by Globalstar (US) in LEO that was launched on Tue, 09 Feb 1999 UTC via a SOYUZ-U-PVB launch vehicle from the Tyuratam Missile And Space Complex (TTMTR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.
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25621 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
Unknown / GLOBRelated business
Manufacturer
SS/Loral
Mission
Non-operational Commercial Communications
Bus & Motor
LS-400, LS-400 AOCS
Mass
450 kg wet, 380 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 6.0 m
Radar Cross Section
5.587 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 13 hours ago
TLE from 13 hours ago
0 GLOBALSTAR M023
1 25621U 99004A 25258.39605808 -.00000028 00000-0 42275-3 0 9993
2 25621 52.0098 138.7535 0010010 330.0885 201.1284 12.62506371227128Epoch: 2025-09-15T09:30Z
TLE epoch observation values (Epoch: 2025-09-15T09:30:19.418Z)
Latitude
6.91381°
Longitude
176.16391°
Altitude
1,419.946 km
Speed
7.149 km/s
True Right ascension
20h 53m 23s
True Declination
6° 52' 35"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
14:52:47
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,420.806 km
Perigee altitude
1,405.208 km
Semi-major axis
7,791.144 km
Eccentricity
0.001
Inclination
52.0098°
RAAN
138.7535°
Arg. of periapsis
330.0885°
True anomaly
201.0871°
Mean anomaly
201.1284°
Eccentric anomaly
201.10775°
Mean motion
3.15603 °/min
Orbital period
114.07 mins
BSTAR
0.00042275
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Other satellites on launch #4 in the year 1999 (1999-02-09 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.GLOBALSTAR M023 Visibility forecast
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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. |
|---|---|---|---|---|---|---|---|
| 15 mins | 2025-09-15 22:14:45.807Z | 294.587° NW | 2025-09-15 22:21:45.807Z | 352.404° N | 31.015° | 2025-09-15 22:29:45.807Z | 63.159° ENE |
| 15 mins | 2025-09-16 00:16:45.807Z | 312.494° NW | 2025-09-16 00:23:45.807Z | 26.045° NE | 38.325° | 2025-09-16 00:31:45.807Z | 98.979° ESE |
| 15 mins | 2025-09-16 02:16:45.807Z | 301.461° NW | 2025-09-16 02:23:45.807Z | 223.772° SW | 41.916° | 2025-09-16 02:31:45.807Z | 147.52° SSE |
| 7 mins | 2025-09-16 04:18:45.807Z | 266.299° W | 2025-09-16 04:21:45.807Z | 244.485° WSW | 14.392° | 2025-09-16 04:25:45.807Z | 215.437° SW |
| 13 mins | 2025-09-16 17:00:45.807Z | 175.23° S | 2025-09-16 17:06:45.807Z | 124.453° SE | 26.017° | 2025-09-16 17:13:45.807Z | 69.147° E |
| 15 mins | 2025-09-16 18:58:45.807Z | 233.969° WSW | 2025-09-16 19:05:45.807Z | 320.45° NNW | 44.878° | 2025-09-16 19:13:45.807Z | 51.857° ENE |
| 14 mins | 2025-09-16 20:59:45.807Z | 281.517° WNW | 2025-09-16 21:06:45.807Z | 350.309° N | 33.521° | 2025-09-16 21:13:45.807Z | 52.246° ENE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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