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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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
CYL + 4 ANT, 1.1 m
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 03307U 68055A 26256.28211613 -.00000010 00000-0 00000-0 0 9994
2 03307 120.8214 209.3744 0013767 287.3247 72.5850 6.42588908365099Epoch: 2026-09-13T06:46Z
TLE epoch observation values (Epoch: 2026-09-13T06:46:14.833Z)
Latitude
0.00003°
Longitude
115.53357°
Altitude
5,838.881 km
Speed
5.714 km/s
True Right ascension
13h 57m 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
15:06:26
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
5,859.489 km
Perigee altitude
5,825.84 km
Semi-major axis
12,220.801 km
Eccentricity
0.00138
Inclination
120.8214°
RAAN
209.3744°
Arg. of periapsis
287.3247°
True anomaly
72.7356°
Mean anomaly
72.585°
Eccentric anomaly
72.66029°
Mean motion
1.60655 °/min
Orbital period
224.08 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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2026-09-14 06:45:12.292Z | 91.065° ESE | 2026-09-14 06:51:12.292Z | 104.958° ESE | 10.715° | 2026-09-14 06:55:12.292Z | 114.242° SE |
| 54 mins | 2026-09-14 09:55:12.292Z | 42.335° NE | 2026-09-14 10:22:12.292Z | 128.811° SE | 69.768° | 2026-09-14 10:49:12.292Z | 211.147° SW |
| 50 mins | 2026-09-14 13:22:12.292Z | 49.269° ENE | 2026-09-14 13:47:12.292Z | 337.494° NNW | 58.549° | 2026-09-14 14:12:12.292Z | 269.977° W |
| 51 mins | 2026-09-14 16:42:12.292Z | 89.885° E | 2026-09-14 17:07:12.292Z | 18.743° NNE | 58.72° | 2026-09-14 17:33:12.292Z | 309.824° NW |
| 54 mins | 2026-09-14 20:05:12.292Z | 149.522° SSE | 2026-09-14 20:32:12.292Z | 236.975° WSW | 69.321° | 2026-09-14 20:59:12.292Z | 318.082° NNW |
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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