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.
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
3307 intel report (Beta)
Focus sentinelFocus sentinel
Create New Watchlist
Focus sentinelFocus sentinel
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 25307.21482454 -.00000010 00000-0 00000-0 0 9996
2 03307 120.8774 44.5979 0010229 262.8631 97.0808 6.42403209344917Epoch: 2025-11-03T05:09Z
TLE epoch observation values (Epoch: 2025-11-03T05:09:20.840Z)
Latitude
0.00003°
Longitude
-75.45835°
Altitude
5,847.802 km
Speed
5.71 km/s
True Right ascension
02h 58m 23s
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
03:48:52
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
5,857.527 km
Perigee altitude
5,832.521 km
Semi-major axis
12,223.161 km
Eccentricity
0.00102
Inclination
120.8774°
RAAN
44.5979°
Arg. of periapsis
262.8631°
True anomaly
97.1971°
Mean anomaly
97.0808°
Eccentric anomaly
97.13895°
Mean motion
1.60608 °/min
Orbital period
224.15 mins
BSTAR
0
Loading maneuver chart data...
Computing Atmospheric mass density...
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 #55 in the year 1968 (1968-07-04 UTC)
Did you know?
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
Loading observer location...
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 mins | 2025-11-05 09:35:08.692Z | 245.858° WSW | 2025-11-05 09:39:08.692Z | 255.163° W | 10.63° | 2025-11-05 09:44:08.692Z | 266.786° W |
| 50 mins | 2025-11-05 18:04:08.692Z | 48.67° ENE | 2025-11-05 18:29:08.692Z | 117.236° SE | 33.597° | 2025-11-05 18:54:08.692Z | 183.98° SSW |
| 53 mins | 2025-11-05 21:31:08.692Z | 42.803° NE | 2025-11-05 21:57:08.692Z | 320.703° NNW | 44.03° | 2025-11-05 22:24:08.692Z | 245.369° WSW |
| 49 mins | 2025-11-06 00:54:08.692Z | 68.716° E | 2025-11-06 01:18:08.692Z | 3.007° NNE | 38.326° | 2025-11-06 01:43:08.692Z | 296.695° NW |
| 54 mins | 2025-11-06 04:14:08.692Z | 123.475° SE | 2025-11-06 04:40:08.692Z | 40.72° NE | 44.815° | 2025-11-06 05:08:08.692Z | 318.232° 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 ascending order |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in ascending order |
|---|