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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

Unknown

Radar Cross Section

Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 7 hours ago

TLE from 7 hours ago

0 EXPLORER 40 (INJUN-5)
1  3338U 68066B   26088.14749131  .00000089  00000-0  76114-4 0  9997
2  3338  80.6614 148.1234 1130390 104.4125 268.4889 12.23559693568527

Epoch: 2026-03-29T03:32Z

TLE epoch observation values (Epoch: 2026-03-29T03:32:23.249Z)

Latitude

0°

Longitude

-91.53102°

Altitude

1,703.785 km

Speed

6.969 km/s

True Right ascension

09h 52m 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

15:55:17

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

2,473.437 km

Perigee altitude

675.525 km

Semi-major axis

7,952.618 km

Eccentricity

0.11304

Inclination

80.6614°

RAAN

148.1234°

Arg. of periapsis

104.4125°

True anomaly

255.69522°

Mean anomaly

268.4889°

Eccentric anomaly

262.07411°

Mean motion

3.0604 °/min

Orbital period

117.63 mins

BSTAR

0.000076114

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

SCOUT B DEB, 3390 (Decayed)

SCOUT B DEB, 3342 (Decayed)

SCOUT B DEB, 29278

SCOUT B DEB, 23307 (Decayed)

SCOUT B R/B, 3341

SCOUT B DEB, 3391 (Decayed)

SCOUT B DEB, 3393 (Decayed)

SCOUT B DEB, 29277 (Decayed)

SCOUT B DEB, 3392

SCOUT B DEB, 29279

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

SCOUT B DEB, 3343 (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	2026-03-29 15:53:23.435Z	346.985° N	2026-03-29 15:58:23.435Z	208.902° SW	43.74°	2026-03-29 16:03:23.435Z	175.983° S
7 mins	2026-03-30 03:13:23.435Z	124.286° SE	2026-03-30 03:17:23.435Z	88.642° E	17.008°	2026-03-30 03:20:23.435Z	56.894° ENE
12 mins	2026-03-30 05:09:23.435Z	203.774° SW	2026-03-30 05:15:23.435Z	260.692° W	40.334°	2026-03-30 05:21:23.435Z	1.044° 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: 7 hours ago

TLE from 7 hours ago

TLE epoch observation values (Epoch: 2026-03-29T03:32:23.249Z)

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: 7 hours ago