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
Civil Astronomy
Bus & Motor
RAE, Unknown motor
Mass
189 kg wet, 189 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Cyl + 4 Rod, 114.0 m
Radar Cross Section
0.884 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 EXPLORER 38 (RAE-A)
1 03307U 68055A 25257.24991275 -.00000010 00000-0 00000-0 0 9999
2 03307 120.8741 18.3744 0007491 243.0747 116.9090 6.42413250341701Epoch: 2025-09-14T05:59Z
TLE epoch observation values (Epoch: 2025-09-14T05:59:52.461Z)
Latitude
0.00004°
Longitude
-65.06583°
Altitude
5,850.27 km
Speed
5.709 km/s
True Right ascension
01h 13m 29s
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
17:53:38
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
5,854.053 km
Perigee altitude
5,835.74 km
Semi-major axis
12,223.034 km
Eccentricity
0.00075
Inclination
120.8741°
RAAN
18.3744°
Arg. of periapsis
243.0747°
True anomaly
116.98551°
Mean anomaly
116.909°
Eccentric anomaly
116.94726°
Mean motion
1.60611 °/min
Orbital period
224.14 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. |
|---|---|---|---|---|---|---|---|
| 50 mins | 2025-09-16 03:13:07.355Z | 80.291° E | 2025-09-16 03:38:07.355Z | 12.77° NNE | 39.184° | 2025-09-16 04:03:07.355Z | 304.959° NW |
| 54 mins | 2025-09-16 06:35:07.355Z | 137.61° SSE | 2025-09-16 07:02:07.355Z | 239.435° WSW | 44.725° | 2025-09-16 07:29:07.355Z | 318.682° NNW |
| 34 mins | 2025-09-16 10:16:07.355Z | 212.931° SW | 2025-09-16 10:32:07.355Z | 252.435° W | 18.837° | 2025-09-16 10:50:07.355Z | 296.035° NW |
| 44 mins | 2025-09-16 19:00:07.355Z | 55.86° ENE | 2025-09-16 19:22:07.355Z | 113.54° SE | 27.008° | 2025-09-16 19:44:07.355Z | 169.575° S |
| 54 mins | 2025-09-16 22:24:07.355Z | 41.716° NE | 2025-09-16 22:51:07.355Z | 307.019° NW | 44.901° | 2025-09-16 23:18:07.355Z | 234.518° WSW |
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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