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: 2 days ago
TLE from 2 days ago
0 EXPLORER 38 (RAE-A)
1 03307U 68055A 25359.66981783 -.00000010 00000-0 00000-0 0 9991
2 03307 120.8609 72.1246 0013788 276.5688 83.3345 6.42420391348284Epoch: 2025-12-25T16:04Z
TLE epoch observation values (Epoch: 2025-12-25T16:04:32.260Z)
Latitude
0.00005°
Longitude
96.56863°
Altitude
5,844.097 km
Speed
5.712 km/s
True Right ascension
04h 48m 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
17:35:37
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
5,861.658 km
Perigee altitude
5,827.952 km
Semi-major axis
12,222.942 km
Eccentricity
0.00138
Inclination
120.8609°
RAAN
72.1246°
Arg. of periapsis
276.5688°
True anomaly
83.49146°
Mean anomaly
83.3345°
Eccentric anomaly
83.41298°
Mean motion
1.60613 °/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. |
|---|---|---|---|---|---|---|---|
| 24 mins | 2025-12-27 18:10:11.255Z | 151.023° SSE | 2025-12-27 18:10:11.255Z | 151.023° SSE | 41.468° | 2025-12-27 18:34:11.255Z | 206.71° SW |
| 51 mins | 2025-12-27 21:07:11.255Z | 47.821° ENE | 2025-12-27 21:32:11.255Z | 336.829° NNW | 41.153° | 2025-12-27 21:58:11.255Z | 265.43° W |
| 50 mins | 2025-12-28 00:28:11.255Z | 85.566° E | 2025-12-28 00:52:11.255Z | 18.596° NNE | 39.966° | 2025-12-28 01:18:11.255Z | 307.975° NW |
| 54 mins | 2025-12-28 03:50:11.255Z | 144.947° SSE | 2025-12-28 04:17:11.255Z | 236.817° WSW | 43.909° | 2025-12-28 04:44:11.255Z | 318.377° NNW |
| 22 mins | 2025-12-28 07:37:11.255Z | 229.556° WSW | 2025-12-28 07:48:11.255Z | 255.754° W | 13.596° | 2025-12-28 07:59:11.255Z | 281.737° WNW |
| 48 mins | 2025-12-28 16:13:11.255Z | 50.347° ENE | 2025-12-28 16:37:11.255Z | 114.328° SE | 31.405° | 2025-12-28 17:01:11.255Z | 178.321° S |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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