Showing default

EXPLORER 27, 1328

Orbit data source: Space-Track

EXPLORER 27, 1328 is a payload satellite owned by GSFC (US) in LEO that was launched on Thu, 29 Apr 1965 UTC via an SCOUT X-4 launch vehicle from the Wallops Island (WLPIS). 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.

Loading next visibility...
Identifier
1328, 1965-032A
Orbit
LEO
Last TLE update
1 day ago
Origin
Manufacturer
APL
Mission
Civil Science
Bus & Motor
TRANSIT 5, Unknown motor
Mass
55 kg wet, 55 kg dry
Launch date (UTC)
1965-04-29 (60 years ago)
Launch vehicle
SCOUT X-4
Launch site
Wallops Island (WLPIS)
Object type
Payload
Rocket body
Debris
Shape & HBR
Oct Cyl + 4 Pan + 4 Rod, 4.6 m
Radar Cross Section
2.996 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 1 day ago
0 EXPLORER 27
1  1328U 65032A   25119.12217765 -.00000006  00000-0  11763-3 0  9997
2  1328  41.1862 348.9467 0245716 312.5298  45.4942 13.38884574933266
Epoch: 2025-04-29T02:55Z
Definitive object data (Epoch: 2025-04-29T02:55:56.148Z)
Latitude
0.00002°
Longitude
87.63639°
Altitude
986.39 km
Speed
7.422 km/s
True Right ascension
23h 15m 47s
True Declination
0° 00' 00"
Sunlit
Object was in daylight at TLE epoch
Visualization TLE readout
Latitude
-37.73397°
Longitude
-36.39494°
Altitude
1,062.24 km
Speed
7.352 km/s
Apparent Right ascension
11h 22m 20s
Apparent Declination
-62° 28' 43"
Sunlit
Object is in full shadow
Visualization observer readout
Local Sidereal Time
18:11:44
Azimuth
216.198° SW
Elevation
-40.153°
Doppler factor
1
Orbital elements
Apogee altitude
1,299.63 km
Perigee altitude
931.368 km
Semi-major axis
7,493.636 km
Eccentricity
0.0245716
Inclination
41.1862°
RAAN
348.9467°
Arg. of periapsis
312.5298°
True anomaly
47.546°
Mean anomaly
45.4942°
Eccentric anomaly
46.51568°
Mean motion
3.34583 °/min
BSTAR
0.00011763
Orbital period
107.6 mins
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 #32 in the year 1965 (1965-04-29 UTC)

EXPLORER 27 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.
9 mins2025-04-30 16:40:41.824Z176.679° S2025-04-30 16:44:41.824Z138.388° SSE18.662°2025-04-30 16:49:41.824Z94.028° ESE
12 mins2025-04-30 18:32:41.824Z226.133° WSW2025-04-30 18:37:41.824Z151.262° SSE40.724°2025-04-30 18:44:41.824Z77.434° E
13 mins2025-04-30 20:25:41.824Z265.075° W2025-04-30 20:31:41.824Z31.74° NE44.766°2025-04-30 20:38:41.824Z82.183° E
14 mins2025-04-30 22:19:41.824Z281.444° WNW2025-04-30 22:25:41.824Z195.998° SSW44.987°2025-04-30 22:33:41.824Z105.216° ESE
13 mins2025-05-01 00:13:41.824Z276.096° WNW2025-05-01 00:19:41.824Z206.777° SW36.324°2025-05-01 00:26:41.824Z142.252° SSE
6 mins2025-05-01 02:09:41.824Z247.127° WSW2025-05-01 02:12:41.824Z223.392° SW14.62°2025-05-01 02:15:41.824Z200.448° SSW
|