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GLOBALSTAR M055, 25910

Orbit data source: Space-Track

GLOBALSTAR M055, 25910 is a payload satellite owned by Globalstar (US) in LEO that was launched on Wed, 22 Sep 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/25910?theme=dark&initialShowStats=false

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Identifier

25910, 1999-049D

Orbit

LEO

Last TLE update

17 hours ago

Origin

Globalstar Inc. (Unknown / GLOB)

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)

1999-09-22 (26 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

TLE from 17 hours ago

0 GLOBALSTAR M055
1 25910U 99049D   25210.77696476 -.00000092  00000-0  18251-4 0  9993
2 25910  51.9993 237.5088 0007157 219.7639 140.2689 12.29430506173525

Epoch: 2025-07-29T18:38Z

TLE epoch observation values (Epoch: 2025-07-29T18:38:49.755Z)

Latitude

0.00003°

Longitude

10.13583°

Altitude

1,556.765 km

Speed

7.088 km/s

True Right ascension

15h 50m 02s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-50.7291°

Longitude

-63.88301°

Altitude

1,566.471 km

Speed

7.086 km/s

Apparent Right ascension

12h 05m 51s

Apparent Declination

-47° 13' 16"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

01:19:52

Azimuth

124.778° SE

Elevation

-74.787°

Doppler factor

Orbital elements

Apogee altitude

1,557.79 km

Perigee altitude

1,546.439 km

Semi-major axis

7,930.252 km

Eccentricity

0.00072

Inclination

51.9993°

RAAN

237.5088°

Arg. of periapsis

219.7639°

True anomaly

140.32129°

Mean anomaly

140.2689°

Eccentric anomaly

140.2951°

Mean motion

3.07335 °/min

Orbital period

117.14 mins

BSTAR

0.000018251

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Other satellites on launch #49 in the year 1999 (1999-09-22 UTC)

GLOBALSTAR M058, 25907

GLOBALSTAR M050, 25908

GLOBALSTAR M033, 25909

SL-4 R/B(1), 25911 (Decayed)

SL-4 R/B(2), 25912 (Decayed)

GLOBALSTAR M055 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.
15 mins	2025-07-30 12:49:52.225Z	294.337° NW	2025-07-30 12:56:52.225Z	239.001° WSW	32.295°	2025-07-30 13:04:52.225Z	171.136° S
8 mins	2025-07-31 01:59:52.225Z	143.119° SSE	2025-07-31 02:03:52.225Z	114.33° SE	16.381°	2025-07-31 02:07:52.225Z	86.995° E
17 mins	2025-07-31 03:56:52.225Z	214.311° SW	2025-07-31 04:04:52.225Z	143.255° SSE	42.851°	2025-07-31 04:13:52.225Z	55.773° ENE
16 mins	2025-07-31 06:00:52.225Z	265.162° W	2025-07-31 06:08:52.225Z	342.581° N	38.284°	2025-07-31 06:16:52.225Z	50.979° ENE
15 mins	2025-07-31 08:06:52.225Z	302.965° NW	2025-07-31 08:13:52.225Z	7.062° NNE	32.632°	2025-07-31 08:21:52.225Z	70.122° E
16 mins	2025-07-31 10:10:52.225Z	311.42° NW	2025-07-31 10:17:52.225Z	14.472° NNE	41.648°	2025-07-31 10:26:52.225Z	109.269° ESE

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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Check out GLOBALSTAR M055, 25910 on other resources

View GLOBALSTAR M055, 25910 on NASA - NSSDCA Website

View GLOBALSTAR M055, 25910 on Heavens-Above

View GLOBALSTAR M055, 25910 on Keep Track

View GLOBALSTAR M055, 25910 on Celestrak

View GLOBALSTAR M055, 25910 on Gunter's Space Page

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