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EXPLORER 29 (GEOS 1), 1726

Orbit data source: Space-Track

EXPLORER 29 (GEOS 1), 1726 is a payload satellite owned by GSFC (US) in LEO that was launched on Sat, 06 Nov 1965 UTC via a THOR DELTA E launch vehicle from the Air Force Eastern Test Range (AFETR). 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/1726?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/1726?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

1726, 1965-089A

Orbit

LEO

Last TLE update

15 hours ago

Origin

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

APL

Mission

Civil Geodetic

Bus & Motor

ANNA, Unknown motor

Mass

176 kg wet, 176 kg dry

Launch date (UTC)

1965-11-06 (60 years ago)

Launch vehicle

THOR DELTA E

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Oct Cyl + 1 Dome + 1 Rod, 15 m

Radar Cross Section

1.519 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 15 hours ago

0 EXPLORER 29 (GEOS 1)
1 01726U 65089A   25128.59158191 -.00000065  00000-0  54368-4 0  9993
2 01726  59.3829 218.6045 0713161 316.8220 137.2482 11.97072634601229

Epoch: 2025-05-08T14:11Z

Definitive object data (Epoch: 2025-05-08T14:11:52.677Z)

Latitude

58.25454°

Longitude

-113.23828°

Altitude

2,142.648 km

Speed

6.657 km/s

True Right ascension

21h 45m 33s

True Declination

58° 07' 32"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

-40.55987°

Longitude

-12.14303°

Altitude

1,651.076 km

Speed

7.072 km/s

Apparent Right ascension

03h 01m 45s

Apparent Declination

-42° 51' 36"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

13:10:08

Azimuth

252.822° W

Elevation

-68.959°

Doppler factor

Orbital elements

Apogee altitude

2,269.018 km

Perigee altitude

1,117.759 km

Semi-major axis

8,071.526 km

Eccentricity

0.0713161

Inclination

59.3829°

RAAN

218.6045°

Arg. of periapsis

316.822°

True anomaly

142.44704°

Mean anomaly

137.2482°

Eccentric anomaly

139.88119°

Mean motion

2.99302 °/min

BSTAR

0.000054368

Orbital period

120.28 mins

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Other satellites on launch #89 in the year 1965 (1965-11-06 UTC)

EXPLORER 29 (GEOS 1) 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.
8 mins	2025-05-09 05:48:32.761Z	129.509° SE	2025-05-09 05:52:32.761Z	101.022° ESE	14.367°	2025-05-09 05:56:32.761Z	75.473° E
17 mins	2025-05-09 07:48:32.761Z	205.925° SW	2025-05-09 07:55:32.761Z	120.996° SE	43.953°	2025-05-09 08:05:32.761Z	42.832° NE
18 mins	2025-05-09 09:54:32.761Z	268.088° W	2025-05-09 10:01:32.761Z	325.813° NNW	33.517°	2025-05-09 10:12:32.761Z	38.394° NE
18 mins	2025-05-09 12:03:32.761Z	310.267° NW	2025-05-09 12:11:32.761Z	2.541° NNE	25.992°	2025-05-09 12:21:32.761Z	56.683° ENE
21 mins	2025-05-09 14:11:32.761Z	325.981° NNW	2025-05-09 14:21:32.761Z	35.326° NE	34.771°	2025-05-09 14:32:32.761Z	97.974° ESE
24 mins	2025-05-09 16:16:32.761Z	318.365° NNW	2025-05-09 16:28:32.761Z	218.907° SW	44.767°	2025-05-09 16:40:32.761Z	148.614° SSE
17 mins	2025-05-09 18:24:32.761Z	296.192° NW	2025-05-09 18:32:32.761Z	254.184° W	23.468°	2025-05-09 18:41:32.761Z	206.701° SW

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Check out EXPLORER 29 (GEOS 1), 1726 on other resources

View EXPLORER 29 (GEOS 1), 1726 on NASA - NSSDCA Website

View EXPLORER 29 (GEOS 1), 1726 on Heavens-Above

View EXPLORER 29 (GEOS 1), 1726 on Keep Track

View EXPLORER 29 (GEOS 1), 1726 on Celestrak

View EXPLORER 29 (GEOS 1), 1726 on Gunter's Space Page

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