EXPLORER 40 (INJUN-5), 3338
Orbit data source: Space-Track
EXPLORER 40 (INJUN-5), 3338 is a payload satellite owned by NASA LaRC (US) in LEO that was launched on Thu, 08 Aug 1968 UTC via an SCOUT B 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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3338 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
Iowa
Mission
Civil Science
Bus & Motor
INJUN E, Unknown motor
Mass
70 kg wet, 70 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Hex Cyl, 0.4 m
Radar Cross Section
0.609 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 16 hours ago
TLE from 16 hours ago
0 EXPLORER 40 (INJUN-5)
1 03338U 68066B 25260.57894914 .00000111 00000-0 10123-3 0 9998
2 03338 80.6581 295.3838 1131231 138.7242 230.5192 12.23465115544975Epoch: 2025-09-17T13:53Z
TLE epoch observation values (Epoch: 2025-09-17T13:53:41.205Z)
Latitude
-0.00009°
Longitude
90.20922°
Altitude
2,206.972 km
Speed
6.541 km/s
True Right ascension
19h 41m 32s
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
22:40:52
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
2,474.562 km
Perigee altitude
675.22 km
Semi-major axis
7,953.028 km
Eccentricity
0.11312
Inclination
80.6581°
RAAN
295.3838°
Arg. of periapsis
138.7242°
True anomaly
221.38003°
Mean anomaly
230.5192°
Eccentric anomaly
225.86726°
Mean motion
3.06016 °/min
Orbital period
117.64 mins
BSTAR
0.00010123
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Other satellites on launch #66 in the year 1968 (1968-08-08 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 40 (INJUN-5) 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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-09-18 14:05:42.360Z | 354.827° N | 2025-09-18 14:08:42.360Z | 34.651° NE | 43.336° | 2025-09-18 14:12:42.360Z | 164.468° S |
| 10 mins | 2025-09-19 01:21:42.360Z | 122.578° SE | 2025-09-19 01:26:42.360Z | 89.877° E | 19.446° | 2025-09-19 01:31:42.360Z | 49.75° ENE |
| 17 mins | 2025-09-19 03:15:42.360Z | 192.233° SSW | 2025-09-19 03:25:42.360Z | 290.733° WNW | 44.59° | 2025-09-19 03:32:42.360Z | 7.246° NNE |
| 7 mins | 2025-09-19 05:21:42.360Z | 270.559° WNW | 2025-09-19 05:24:42.360Z | 291.133° WNW | 14.574° | 2025-09-19 05:28:42.360Z | 322.72° 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 |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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