Showing default

SYNCOM 3, 858

Orbit data source: Space-Track

SYNCOM 3, 858 is a payload satellite owned by GSFC (US) in GEO that was launched on Wed, 19 Aug 1964 UTC via a THOR DELTA D 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.

Not visible in the next 10 days
Identifier
858, 1964-047A
Orbit
GEO
Last TLE update
1 week ago
Origin
Manufacturer
Hughes
Mission
Non-operational Civil Communications
Bus & Motor
HS-301, SR-12-1
Mass
66 kg wet, 33 kg dry
Launch date (UTC)
1964-08-19 (61 years ago)
Launch vehicle
THOR DELTA D
Launch site
Air Force Eastern Test Range (AFETR)
Object type
Payload
Rocket body
Debris
Shape & HBR
Cyl, 0.71 m
Radar Cross Section
0.415 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 1 week ago
0 SYNCOM 3
1 00858U 64047A   25178.19524203 -.00000134  00000-0  00000-0 0  9990
2 00858   6.0967  68.1098 0003383 136.1814 125.1906  1.00313659 49908
Epoch: 2025-06-27T04:41Z
TLE epoch observation values (Epoch: 2025-06-27T04:41:08.911Z)
Latitude
-6.05476°
Longitude
-16.35165°
Altitude
35,783.543 km
Speed
3.074 km/s
True Right ascension
21h 57m 56s
True Declination
-6° 02' 55"
Sunlit
Object was in daylight at epoch
Visualization orbit readout
Latitude
-2.34979°
Longitude
59.64487°
Altitude
35,788.128 km
Speed
3.074 km/s
Apparent Right ascension
03h 28m 27s
Apparent Declination
-7° 47' 05"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
21:02:09
Azimuth
91.807° ESE
Elevation
-10.019°
Doppler factor
1
Orbital elements
Apogee altitude
35,790.174 km
Perigee altitude
35,761.653 km
Semi-major axis
42,154.05 km
Eccentricity
0.00034
Inclination
6.0967°
RAAN
68.1098°
Arg. of periapsis
136.1814°
True anomaly
Unknown
Mean anomaly
125.1906°
Eccentric anomaly
Unknown
Mean motion
0.25077 °/min
Orbital period
1,435.55 mins
BSTAR
0
Loading historical data...
858 neighbors
Loading maneuver chart data...
Loading SW <> Apogee altitude chart data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #47 in the year 1964 (1964-08-19 UTC)

SYNCOM 3 Visibility

Observer location: undefined°, undefined°

SYNCOM 3 is likely not visible in the next few days
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.
|