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GLOBALSTAR M028, 25875

Orbit data source: Space-Track

GLOBALSTAR M028, 25875 is a payload satellite owned by Globalstar (US) in LEO that was launched on Sun, 25 Jul 1999 UTC via a DELTA 7420-10C launch vehicle from the Air Force Eastern Test Range (AFETR). 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/25875?theme=dark&initialShowStats=false

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Identifier

25875, 1999-041D

Orbit

LEO

Country

US / 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)

1999-07-25 (27 years ago)

Launch vehicle

DELTA 7420-10C

Launch site

Air Force Eastern Test Range (AFETR)

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: 7 hours ago

TLE from 7 hours ago

0 GLOBALSTAR M028
1 25875U 99041D   26127.80293257 -.00000077  00000-0  15486-3 0  9996
2 25875  51.9635 305.1027 0064025  57.0220 303.6775 12.50599740230793

Epoch: 2026-05-07T19:16Z

TLE epoch observation values (Epoch: 2026-05-07T19:16:13.374Z)

Latitude

0.00005°

Longitude

150.40317°

Altitude

1,435.051 km

Speed

7.157 km/s

True Right ascension

20h 20m 24s

True Declination

0° 00' 00"

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

10:21:05

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,512.581 km

Perigee altitude

1,412.184 km

Semi-major axis

7,840.52 km

Eccentricity

0.0064

Inclination

51.9635°

RAAN

305.1027°

Arg. of periapsis

57.022°

True anomaly

303.06425°

Mean anomaly

303.6775°

Eccentric anomaly

303.37115°

Mean motion

3.12627 °/min

Orbital period

115.15 mins

BSTAR

0.00015486

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Other satellites on launch #41 in the year 1999 (1999-07-25 UTC)

GLOBALSTAR M026, 25873

DELTA 2 R/B, 25876

GLOBALSTAR M043, 25874

GLOBALSTAR M048, 25872

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GLOBALSTAR M028 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	2026-05-08 12:37:49.779Z	171.558° S	2026-05-08 12:43:49.779Z	126.073° SE	22.61°	2026-05-08 12:49:49.779Z	76.949° E
15 mins	2026-05-08 14:36:49.779Z	228.13° WSW	2026-05-08 14:43:49.779Z	200.6° SSW	44.862°	2026-05-08 14:51:49.779Z	53.025° ENE
15 mins	2026-05-08 16:38:49.779Z	276.839° WNW	2026-05-08 16:45:49.779Z	343.984° N	34.554°	2026-05-08 16:53:49.779Z	53.565° ENE
14 mins	2026-05-08 18:41:49.779Z	306.795° NW	2026-05-08 18:48:49.779Z	13.428° NNE	32.407°	2026-05-08 18:55:49.779Z	74.523° E
15 mins	2026-05-08 20:43:49.779Z	310.664° NW	2026-05-08 20:50:49.779Z	40.649° NE	43.863°	2026-05-08 20:58:49.779Z	118.707° SE
14 mins	2026-05-08 22:44:49.779Z	290.331° WNW	2026-05-08 22:50:49.779Z	237.508° WSW	30.878°	2026-05-08 22:58:49.779Z	171.024° 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 M028, 25875 on other resources

View GLOBALSTAR M028, 25875 on NASA - NSSDCA Website

View GLOBALSTAR M028, 25875 on Heavens-Above

View GLOBALSTAR M028, 25875 on Keep Track

View GLOBALSTAR M028, 25875 on Celestrak

View GLOBALSTAR M028, 25875 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 M028, 25875

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 7 hours ago

TLE from 7 hours ago

TLE epoch observation values (Epoch: 2026-05-07T19:16:13.374Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #41 in the year 1999 (1999-07-25 UTC)

GLOBALSTAR M028 Visibility forecast

Co-orbital & Co-planar RSOs

Check out GLOBALSTAR M028, 25875 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 7 hours ago