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OPS 0856, 2403

Orbit data source: Space-Track

OPS 0856, 2403 is a payload satellite owned by USAF SSD (US) in LEO that was launched on Fri, 19 Aug 1966 UTC via an ATLAS SLV-3 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
2403, 1966-077A
Orbit
LEO
Last TLE update
1 day ago
Origin
Manufacturer
LMSC
Mission
Defense Early Warn
Bus & Motor
MIDAS, Unknown motor
Mass
~2,000 kg wet, ~1,000 kg dry
Launch date (UTC)
1966-08-19 (59 years ago)
Launch vehicle
ATLAS SLV-3 AGENA D
Launch site
Air Force Western Test Range (AFWTR)
Object type
Payload
Rocket body
Debris
Shape & HBR
Cone + Cyl + 2 Pan, 1.5 m
Radar Cross Section
4.418 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 1 day ago
0 OPS 0856
1 02403U 66077A   25199.58788288 -.00000010  00000-0 -58509-2 0  9997
2 02403  90.3387 272.4851 0009685  60.7258 299.4561  8.59852049497787
Epoch: 2025-07-18T14:06Z
TLE epoch observation values (Epoch: 2025-07-18T14:06:33.08Z)
Latitude
-0.00001°
Longitude
124.21007°
Altitude
3,683.62 km
Speed
6.296 km/s
True Right ascension
18h 09m 56s
True Declination
0° 00' 00"
Sunlit
Object was in full shadow at epoch
Visualization orbit readout
Latitude
34.49966°
Longitude
123.99082°
Altitude
3,681.496 km
Speed
6.301 km/s
Apparent Right ascension
17h 29m 00s
Apparent Declination
7° 07' 34"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
04:20:29
Azimuth
337.446° NNW
Elevation
-40.369°
Doppler factor
1
Orbital elements
Apogee altitude
3,693.784 km
Perigee altitude
3,674.293 km
Semi-major axis
10,062.175 km
Eccentricity
0.00097
Inclination
90.3387°
RAAN
272.4851°
Arg. of periapsis
60.7258°
True anomaly
299.35941°
Mean anomaly
299.4561°
Eccentric anomaly
299.40776°
Mean motion
2.15033 °/min
Orbital period
167.42 mins
BSTAR
-0.0058509
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