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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 (58 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: 5 hours ago

TLE from 5 hours ago

0 EXPLORER 40 (INJUN-5)
1 03338U 68066B   26046.27926092  .00000356  00000-0  36863-3 0  9991
2 03338  80.6625 180.1231 1130603 190.1181 167.5277 12.23546104563408

Epoch: 2026-02-15T06:42Z

TLE epoch observation values (Epoch: 2026-02-15T06:42:08.143Z)

Latitude

0.00001°

Longitude

-65.70107°

Altitude

2,462.179 km

Speed

6.333 km/s

True Right ascension

12h 00m 29s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow 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

13:53:44

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

2,473.672 km

Perigee altitude

675.408 km

Semi-major axis

7,952.677 km

Eccentricity

0.11306

Inclination

80.6625°

RAAN

180.1231°

Arg. of periapsis

190.1181°

True anomaly

169.98438°

Mean anomaly

167.5277°

Eccentric anomaly

168.78733°

Mean motion

3.06036 °/min

Orbital period

117.63 mins

BSTAR

0.00036863

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

SCOUT B DEB, 3343 (Decayed)

SCOUT B DEB, 29279

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

SCOUT B DEB, 3392

SCOUT B R/B, 3341

SCOUT B DEB, 3390 (Decayed)

SCOUT B DEB, 23307 (Decayed)

SCOUT B DEB, 29277 (Decayed)

SCOUT B DEB, 3342 (Decayed)

SCOUT B DEB, 29278

SCOUT B DEB, 3393 (Decayed)

SCOUT B DEB, 3391 (Decayed)

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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.
7 mins	2026-02-15 12:53:19.057Z	291.682° WNW	2026-02-15 12:57:19.057Z	310.674° NW	11.49°	2026-02-15 13:00:19.057Z	325.894° NNW
7 mins	2026-02-15 19:12:19.057Z	21.246° NNE	2026-02-15 19:16:19.057Z	61.302° ENE	18.597°	2026-02-15 19:19:19.057Z	97.114° ESE
10 mins	2026-02-15 21:10:19.057Z	338.565° N	2026-02-15 21:16:19.057Z	254.444° W	36.681°	2026-02-15 21:20:19.057Z	196.857° SSW
22 mins	2026-02-16 08:17:19.057Z	150.675° SSE	2026-02-16 08:29:19.057Z	84.046° E	34.574°	2026-02-16 08:39:19.057Z	23.738° NE
23 mins	2026-02-16 10:15:19.057Z	207.234° SW	2026-02-16 10:27:19.057Z	277.606° WNW	41.008°	2026-02-16 10:38:19.057Z	2.253° NNE

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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: 5 hours ago

TLE from 5 hours ago

TLE epoch observation values (Epoch: 2026-02-15T06:42:08.143Z)

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: 5 hours ago