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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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https://www.satcat.com/sats-embedded/3338?theme=dark&initialShowStats=false

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ISO8601 Format

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

HEX CYL + 5 ANT, 1.1 m

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   26268.03194031  .00000012  00000-0 -53983-5 0  9995
2 03338  80.6675  10.5364 1129434  95.9712 277.0968 12.23589437590521

Epoch: 2026-09-25T00:45Z

TLE epoch observation values (Epoch: 2026-09-25T00:45:59.642Z)

Latitude

-0.00003°

Longitude

-4.8223°

Altitude

1,569.804 km

Speed

7.087 km/s

True Right ascension

00h 42m 08s

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

05:41:50

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

2,472.533 km

Perigee altitude

676.171 km

Semi-major axis

7,952.489 km

Eccentricity

0.11294

Inclination

80.6675°

RAAN

10.5364°

Arg. of periapsis

95.9712°

True anomaly

264.13737°

Mean anomaly

277.0968°

Eccentric anomaly

270.62601°

Mean motion

3.06047 °/min

Orbital period

117.63 mins

BSTAR

-0.0000053983

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

SCOUT B DEB, 29279

SCOUT B DEB, 29278

SCOUT B DEB, 3392

SCOUT B DEB, 29277 (Decayed)

SCOUT B R/B, 3341

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

SCOUT B DEB, 3342 (Decayed)

SCOUT B DEB, 3343 (Decayed)

SCOUT B DEB, 3393 (Decayed)

SCOUT B DEB, 3391 (Decayed)

SCOUT B DEB, 3390 (Decayed)

SCOUT B DEB, 23307 (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.
10 mins	2026-09-25 19:00:57.242Z	340.53° N	2026-09-25 19:03:57.242Z	288.596° WNW	67.342°	2026-09-25 19:10:57.242Z	180.165° SSW
7 mins	2026-09-26 06:19:57.242Z	127.041° SE	2026-09-26 06:23:57.242Z	87.227° E	18.42°	2026-09-26 06:26:57.242Z	53.088° ENE
10 mins	2026-09-26 08:16:57.242Z	211.3° SW	2026-09-26 08:21:57.242Z	270.522° WNW	49.184°	2026-09-26 08:26:57.242Z	355.525° N

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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: 2026-09-25T00:45:59.642Z)

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