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GGSE 1 (GGRS), 728

Orbit data source: Space-Track

GGSE 1 (GGRS), 728 is an American payload satellite in LEO that was launched on Sat, 11 Jan 1964 UTC via a THOR SLV-2A AGENA D launch vehicle from the Air Force Western Test Range (AFWTR). 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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Identifier
728, 1964-001B
Orbit
LEO
Last TLE update
14 hours ago
Origin
Manufacturer
NRL
Mission
Defense Technology
Bus & Motor
NRL 20", Unknown motor
Mass
38 kg wet, 38 kg dry
Launch date (UTC)
1964-01-11 (62 years ago)
Launch vehicle
THOR SLV-2A AGENA D
Launch site
Air Force Western Test Range (AFWTR)
Object type
Payload
Rocket body
Debris
Shape & HBR
Sphere + 1 Ant, 4.5 m
Radar Cross Section
0.623 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 14 hours ago
0 GGSE 1 (GGRS)
1 00728U 64001B   25199.40912289  .00000027  00000-0  57002-4 0  9996
2 00728  69.9053 202.3594 0011350  48.6373 311.5707 13.97682136133037
Epoch: 2025-07-18T09:49Z
TLE epoch observation values (Epoch: 2025-07-18T09:49:08.217Z)
Latitude
-0.00005°
Longitude
118.61415°
Altitude
898.662 km
Speed
7.406 km/s
True Right ascension
13h 29m 26s
True Declination
0° 00' 00"
Sunlit
Object was in daylight at epoch
Visualization orbit readout
Latitude
-2.50893°
Longitude
116.46916°
Altitude
899.232 km
Speed
7.405 km/s
Apparent Right ascension
15h 07m 33s
Apparent Declination
-57° 03' 08"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
12:20:26
Azimuth
158.154° S
Elevation
-13.144°
Doppler factor
1
Orbital elements
Apogee altitude
908.144 km
Perigee altitude
891.623 km
Semi-major axis
7,278.021 km
Eccentricity
0.00114
Inclination
69.9053°
RAAN
202.3594°
Arg. of periapsis
48.6373°
True anomaly
311.4733°
Mean anomaly
311.5707°
Eccentric anomaly
311.52201°
Mean motion
3.49561 °/min
Orbital period
102.99 mins
BSTAR
0.000057002
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Other satellites on launch #1 in the year 1964 (1964-01-11 UTC)
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