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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: 18 hours ago

TLE from 18 hours ago

0 GLOBALSTAR M028
1 25875U 99041D   26079.76884773 -.00000096  00000-0  27990-4 0  9991
2 25875  51.9616  88.3345 0063235 312.2461  47.3047 12.50598001224785

Epoch: 2026-03-20T18:27Z

TLE epoch observation values (Epoch: 2026-03-20T18:27:08.443Z)

Latitude

-0.00001°

Longitude

-6.74985°

Altitude

1,429.222 km

Speed

7.163 km/s

True Right ascension

05h 53m 20s

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

17:03:12

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,511.97 km

Perigee altitude

1,412.811 km

Semi-major axis

7,840.527 km

Eccentricity

0.00632

Inclination

51.9616°

RAAN

88.3345°

Arg. of periapsis

312.2461°

True anomaly

47.84014°

Mean anomaly

47.3047°

Eccentric anomaly

47.57213°

Mean motion

3.12626 °/min

Orbital period

115.15 mins

BSTAR

0.00002799

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

DELTA 2 R/B, 25876

GLOBALSTAR M048, 25872

GLOBALSTAR M026, 25873

GLOBALSTAR M043, 25874

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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.
11 mins	2026-03-21 12:23:34.782Z	279.126° WNW	2026-03-21 12:28:34.782Z	243.09° WSW	19.544°	2026-03-21 12:34:34.782Z	199.264° SSW
12 mins	2026-03-22 01:15:34.782Z	167.261° S	2026-03-22 01:20:34.782Z	126.213° SE	23.942°	2026-03-22 01:27:34.782Z	72.014° E
16 mins	2026-03-22 03:13:34.782Z	229.621° WSW	2026-03-22 03:20:34.782Z	224.882° SW	44.849°	2026-03-22 03:29:34.782Z	52.807° ENE
15 mins	2026-03-22 05:15:34.782Z	277.5° WNW	2026-03-22 05:22:34.782Z	340.698° N	34.861°	2026-03-22 05:30:34.782Z	52.728° ENE
15 mins	2026-03-22 07:18:34.782Z	306.279° NW	2026-03-22 07:25:34.782Z	8.016° NNE	33.361°	2026-03-22 07:33:34.782Z	77.11° E
16 mins	2026-03-22 09:20:34.782Z	309.879° NW	2026-03-22 09:27:34.782Z	10.689° NNE	44.061°	2026-03-22 09:36:34.782Z	120.62° SE
14 mins	2026-03-22 11:21:34.782Z	291.505° WNW	2026-03-22 11:28:34.782Z	231.905° WSW	30.597°	2026-03-22 11:35:34.782Z	174.885° 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: 18 hours ago

TLE from 18 hours ago

TLE epoch observation values (Epoch: 2026-03-20T18:27:08.443Z)

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: 18 hours ago