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EXPLORER 38 (RAE-A), 3307

Orbit data source: Space-Track

EXPLORER 38 (RAE-A), 3307 is a payload satellite owned by GSFC (US) that was launched on Thu, 04 Jul 1968 UTC via a THOR DELTA J 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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<iframe src="https://www.satcat.com/sats-embedded/3307?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/3307?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

3307, 1968-055A

Orbit

Active

Last TLE update

1 day ago

Origin

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

GSFC/FAIRH

Mission

Civil Astronomy

Bus & Motor

RAE, Unknown motor

Mass

189 kg wet, 189 kg dry

Launch date (UTC)

1968-07-04 (57 years ago)

Launch vehicle

THOR DELTA J

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl + 4 Rod, 228 m

Radar Cross Section

0.884 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 1 day ago

0 EXPLORER 38 (RAE-A)
1  3307U 68055A   25183.31726462 -.00000010  00000-0  00000+0 0  9998
2  3307 120.8576 339.5849 0005201 192.7289 167.3182  6.42454574337058

Epoch: 2025-07-02T07:36Z

TLE epoch observation values (Epoch: 2025-07-02T07:36:51.663Z)

Latitude

0.00001°

Longitude

-55.23047°

Altitude

5,851.8 km

Speed

5.708 km/s

True Right ascension

22h 38m 20s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-53.74027°

Longitude

71.11474°

Altitude

5,860.852 km

Speed

5.709 km/s

Apparent Right ascension

09h 01m 23s

Apparent Declination

-55° 10' 59"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

00:07:47

Azimuth

132.336° SE

Elevation

-55.86°

Doppler factor

Orbital elements

Apogee altitude

5,850.728 km

Perigee altitude

5,838.014 km

Semi-major axis

12,222.508 km

Eccentricity

0.00052

Inclination

120.8576°

RAAN

339.5849°

Arg. of periapsis

192.7289°

True anomaly

Unknown

Mean anomaly

167.3182°

Eccentric anomaly

Unknown

Mean motion

1.60621 °/min

Orbital period

224.13 mins

BSTAR

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Other satellites on launch #55 in the year 1968 (1968-07-04 UTC)

DELTA 1 R/B, 3315

EXPLORER 38 DEB, 3848

DELTA 1 DEB, 4841

DELTA 1 DEB, 25270

DELTA 1 DEB, 26672

DELTA 1 DEB, 26673 (Decayed)

EXPLORER 38 DEB, 28608

EXPLORER 38 (RAE-A) Visibility forecast

Observer location: undefined°, undefined°

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.
51 mins	2025-07-03 22:05:08.944Z	47.106° ENE	2025-07-03 22:31:08.944Z	120.152° SE	35.257°	2025-07-03 22:56:08.944Z	187.551° SSW
53 mins	2025-07-04 01:32:08.944Z	43.4° NE	2025-07-04 01:58:08.944Z	326.471° NNW	43.643°	2025-07-04 02:25:08.944Z	248.557° W
49 mins	2025-07-04 04:55:08.944Z	71.204° E	2025-07-04 05:19:08.944Z	5.636° NNE	38.416°	2025-07-04 05:44:08.944Z	298.827° NW
54 mins	2025-07-04 08:15:08.944Z	126.822° SE	2025-07-04 08:41:08.944Z	66.46° ENE	44.941°	2025-07-04 09:09:08.944Z	318.506° NNW
31 mins	2025-07-04 11:50:08.944Z	194.685° SSW	2025-07-04 12:11:08.944Z	249.28° W	26.143°	2025-07-04 12:21:08.944Z	278.86° WNW

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Check out EXPLORER 38 (RAE-A), 3307 on other resources

View EXPLORER 38 (RAE-A), 3307 on NASA - NSSDCA Website

View EXPLORER 38 (RAE-A), 3307 on Heavens-Above

View EXPLORER 38 (RAE-A), 3307 on Keep Track

View EXPLORER 38 (RAE-A), 3307 on Celestrak

View EXPLORER 38 (RAE-A), 3307 on Gunter's Space Page

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