EXPLORER 38 (RAE-A), 3307
Orbit data source: Space-Track
EXPLORER 38 (RAE-A), 3307 is a payload satellite owned by GSFC (US) that was launched on Thu, 04 Jul 1968 UTC via a THOR DELTA J 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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3307 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
GSFC/FAIRH
Mission
Spacecraft
Bus & Motor
RAE, Unknown motor
Mass
189 kg wet, 189 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 16 hours ago
TLE from 16 hours ago
0 EXPLORER 38 (RAE-A)
1 3307U 68055A 25290.24847957 -.00000010 00000-0 00000+0 0 9992
2 3307 120.8790 35.6946 0009293 256.3464 103.6103 6.42403942343826Epoch: 2025-10-17T05:57Z
TLE epoch observation values (Epoch: 2025-10-17T05:57:48.634Z)
Latitude
-0.00001°
Longitude
-79.75461°
Altitude
5,848.921 km
Speed
5.71 km/s
True Right ascension
02h 22m 46s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
16:30:26
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
5,856.374 km
Perigee altitude
5,833.656 km
Semi-major axis
12,223.152 km
Eccentricity
0.00093
Inclination
120.879°
RAAN
35.6946°
Arg. of periapsis
256.3464°
True anomaly
103.71377°
Mean anomaly
103.6103°
Eccentric anomaly
103.66204°
Mean motion
1.60608 °/min
Orbital period
224.15 mins
BSTAR
0
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Other satellites on launch #55 in the year 1968 (1968-07-04 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.EXPLORER 38 (RAE-A) Visibility forecast
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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. |
|---|---|---|---|---|---|---|---|
| 55 mins | 2025-10-17 21:45:20.218Z | 42.242° NE | 2025-10-17 22:13:20.218Z | 319.633° NNW | 44.559° | 2025-10-17 22:40:20.218Z | 240.127° WSW |
| 49 mins | 2025-10-18 01:11:20.218Z | 64.56° ENE | 2025-10-18 01:35:20.218Z | 357.357° N | 38.26° | 2025-10-18 02:00:20.218Z | 292.708° NW |
| 54 mins | 2025-10-18 04:30:20.218Z | 118.019° SE | 2025-10-18 04:56:20.218Z | 40.334° NE | 44.413° | 2025-10-18 05:24:20.218Z | 317.51° NNW |
| 48 mins | 2025-10-18 08:01:20.218Z | 181.999° SSW | 2025-10-18 08:24:20.218Z | 243.168° WSW | 31.515° | 2025-10-18 08:49:20.218Z | 310.255° NW |
| 21 mins | 2025-10-18 17:04:20.218Z | 81.386° E | 2025-10-18 17:14:20.218Z | 105.148° ESE | 13.418° | 2025-10-18 17:25:20.218Z | 131.21° SE |
| 55 mins | 2025-10-18 20:18:20.218Z | 41.889° NE | 2025-10-18 20:45:20.218Z | 127.962° SE | 43.881° | 2025-10-18 21:13:20.218Z | 215.483° SW |
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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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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