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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

21 hours 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 21 hours ago

0 EXPLORER 38 (RAE-A)
1 03307U 68055A   25128.99911784 -.00000010  00000-0  00000-0 0  9995
2 03307 120.8492 311.0948 0005524 175.3794 184.6859  6.42480376333469

Epoch: 2025-05-08T23:58Z

Definitive object data (Epoch: 2025-05-08T23:58:43.781Z)

Latitude

-0.00004°

Longitude

84.35084°

Altitude

5,852 km

Speed

5.708 km/s

True Right ascension

20h 44m 22s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

-7.17185°

Longitude

-99.4945°

Altitude

5,839.919 km

Speed

5.714 km/s

Apparent Right ascension

10h 02m 22s

Apparent Declination

-28° 48' 04"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

04:47:37

Azimuth

119.18° SE

Elevation

-10.211°

Doppler factor

Orbital elements

Apogee altitude

5,850.795 km

Perigee altitude

5,837.292 km

Semi-major axis

12,222.18 km

Eccentricity

0.0005524

Inclination

120.8492°

RAAN

311.0948°

Arg. of periapsis

175.3794°

True anomaly

184.68073°

Mean anomaly

184.6859°

Eccentric anomaly

184.68332°

Mean motion

1.60628 °/min

BSTAR

Unknown

Orbital period

224.12 mins

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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.
50 mins	2025-05-09 23:31:28.054Z	47.88° ENE	2025-05-09 23:56:28.054Z	114.609° SE	33.028°	2025-05-10 00:21:28.054Z	182.286° SSW
53 mins	2025-05-10 02:58:28.054Z	42.738° NE	2025-05-10 03:24:28.054Z	329.958° NNW	44.13°	2025-05-10 03:51:28.054Z	244.55° WSW
49 mins	2025-05-10 06:22:28.054Z	67.804° E	2025-05-10 06:46:28.054Z	1.172° NNE	38.266°	2025-05-10 07:11:28.054Z	295.821° NW
54 mins	2025-05-10 09:41:28.054Z	122.526° SE	2025-05-10 10:08:28.054Z	31.9° NE	44.748°	2025-05-10 10:35:28.054Z	318.124° NNW
46 mins	2025-05-10 13:14:28.054Z	187.659° SSW	2025-05-10 13:36:28.054Z	244.922° WSW	28.879°	2025-05-10 14:00:28.054Z	307.953° NW

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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.