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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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https://www.satcat.com/sats-embedded/25621?theme=dark&initialShowStats=false

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Identifier

25621, 1999-004A

Orbit

LEO

Country

Unknown / GLOB

Related business

Globalstar Inc. (US)

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)

1999-02-09 (27 years ago)

Launch vehicle

SOYUZ-U-PVB

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 6.0 m

Radar Cross Section

5.587 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 22 hours ago

TLE from 22 hours ago

0 GLOBALSTAR M023
1 25621U 99004A   25365.48067992 -.00000037  00000-0  37072-3 0  9997
2 25621  52.0082 172.6728 0009651 198.2186 192.4229 12.62511940240651

Epoch: 2025-12-31T11:32Z

TLE epoch observation values (Epoch: 2025-12-31T11:32:10.745Z)

Latitude

23.7221°

Longitude

-80.55115°

Altitude

1,420.612 km

Speed

7.15 km/s

True Right ascension

12h 50m 34s

True Declination

23° 36' 23"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

08:51:34

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,420.504 km

Perigee altitude

1,405.465 km

Semi-major axis

7,791.122 km

Eccentricity

0.00097

Inclination

52.0082°

RAAN

172.6728°

Arg. of periapsis

198.2186°

True anomaly

192.39914°

Mean anomaly

192.4229°

Eccentric anomaly

192.41102°

Mean motion

3.15605 °/min

Orbital period

114.07 mins

BSTAR

0.00037072

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Other satellites on launch #4 in the year 1999 (1999-02-09 UTC)

GLOBALSTAR M038, 25624

GLOBALSTAR M040, 25622

GLOBALSTAR M036, 25623

SL-4 R/B(1), 25625 (Decayed)

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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.
12 mins	2026-01-01 12:10:54.720Z	171.81° S	2026-01-01 12:16:54.720Z	123.059° SE	24.142°	2026-01-01 12:22:54.720Z	74.502° E
15 mins	2026-01-01 14:08:54.720Z	230.269° WSW	2026-01-01 14:15:54.720Z	43.396° NE	44.984°	2026-01-01 14:23:54.720Z	52.545° ENE
14 mins	2026-01-01 16:09:54.720Z	279.925° WNW	2026-01-01 16:15:54.720Z	335.848° NNW	34.059°	2026-01-01 16:23:54.720Z	52.119° ENE
14 mins	2026-01-01 18:11:54.720Z	309.896° NW	2026-01-01 18:17:54.720Z	7.861° NNE	32.379°	2026-01-01 18:25:54.720Z	77.213° E
15 mins	2026-01-01 20:11:54.720Z	310.373° NW	2026-01-01 20:18:54.720Z	28.286° NE	43.89°	2026-01-01 20:26:54.720Z	118.917° SE
13 mins	2026-01-01 22:11:54.720Z	290.733° WNW	2026-01-01 22:17:54.720Z	238.119° WSW	30.472°	2026-01-01 22:24:54.720Z	174.411° S

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out GLOBALSTAR M023, 25621 on other resources

View GLOBALSTAR M023, 25621 on NASA - NSSDCA Website

View GLOBALSTAR M023, 25621 on Heavens-Above

View GLOBALSTAR M023, 25621 on Keep Track

View GLOBALSTAR M023, 25621 on Celestrak

View GLOBALSTAR M023, 25621 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

GLOBALSTAR M023, 25621

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 22 hours ago

TLE from 22 hours ago

TLE epoch observation values (Epoch: 2025-12-31T11:32:10.745Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #4 in the year 1999 (1999-02-09 UTC)

GLOBALSTAR M023 Visibility forecast

Co-orbital & Co-planar RSOs

Check out GLOBALSTAR M023, 25621 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 22 hours ago