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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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Identifier

3338, 1968-066B

Orbit

LEO

Country

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

Iowa

Mission

Spacecraft

Bus & Motor

INJUN E, Unknown motor

Mass

70 kg wet, 70 kg dry

Launch date (UTC)

1968-08-08 (57 years ago)

Launch vehicle

SCOUT B

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 12 hours ago

TLE from 12 hours ago

0 EXPLORER 40 (INJUN-5)
1 03338U 68066B   25350.76890565  .00000121  00000-0  12791-3 0  9991
2 03338  80.6608 226.4084 1130535 314.1066  37.2169 12.23516832556009

Epoch: 2025-12-16T18:27Z

TLE epoch observation values (Epoch: 2025-12-16T18:27:13.448Z)

Latitude

-0.00007°

Longitude

-136.04602°

Altitude

906.368 km

Speed

7.706 km/s

True Right ascension

15h 05m 38s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

05:00:04

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

2,473.759 km

Perigee altitude

675.575 km

Semi-major axis

7,952.804 km

Eccentricity

0.11305

Inclination

80.6608°

RAAN

226.4084°

Arg. of periapsis

314.1066°

True anomaly

46.00529°

Mean anomaly

37.2169°

Eccentric anomaly

41.50985°

Mean motion

3.06029 °/min

Orbital period

117.64 mins

BSTAR

0.00012791

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Other satellites on launch #66 in the year 1968 (1968-08-08 UTC)

EXPLORER 39 (ADI-3), 3337 (Decayed)

SCOUT B DEB, 29277 (Decayed)

SCOUT B DEB, 3391 (Decayed)

SCOUT B DEB, 3393 (Decayed)

SCOUT B DEB, 29278

SCOUT B DEB, 3392

SCOUT B R/B, 3341

SCOUT B DEB, 3343 (Decayed)

SCOUT B DEB, 29279

SCOUT B DEB, 3390 (Decayed)

SCOUT B DEB, 3342 (Decayed)

SCOUT B DEB, 23307 (Decayed)

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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.

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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.
16 mins	2025-12-17 16:08:01.026Z	164.922° S	2025-12-17 16:14:01.026Z	96.121° ESE	40.033°	2025-12-17 16:24:01.026Z	16.436° NNE
14 mins	2025-12-17 18:09:01.026Z	249.415° W	2025-12-17 18:14:01.026Z	298.504° NW	27.044°	2025-12-17 18:23:01.026Z	357.283° N
11 mins	2025-12-18 00:31:01.026Z	23.275° NE	2025-12-18 00:36:01.026Z	46.232° ENE	14.344°	2025-12-18 00:42:01.026Z	73.014° E
24 mins	2025-12-18 02:27:01.026Z	358.989° N	2025-12-18 02:39:01.026Z	69.916° E	38.281°	2025-12-18 02:51:01.026Z	143.164° SSE
23 mins	2025-12-18 04:27:01.026Z	339.627° N	2025-12-18 04:38:01.026Z	274.943° WNW	39.141°	2025-12-18 04:50:01.026Z	201.027° SSW

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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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Check out EXPLORER 40 (INJUN-5), 3338 on other resources

View EXPLORER 40 (INJUN-5), 3338 on NASA - NSSDCA Website

View EXPLORER 40 (INJUN-5), 3338 on Heavens-Above

View EXPLORER 40 (INJUN-5), 3338 on Keep Track

View EXPLORER 40 (INJUN-5), 3338 on Celestrak

View EXPLORER 40 (INJUN-5), 3338 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

EXPLORER 40 (INJUN-5), 3338

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 12 hours ago

TLE from 12 hours ago

TLE epoch observation values (Epoch: 2025-12-16T18:27:13.448Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #66 in the year 1968 (1968-08-08 UTC)

EXPLORER 40 (INJUN-5) Visibility forecast

Co-orbital & Co-planar RSOs

Check out EXPLORER 40 (INJUN-5), 3338 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 12 hours ago