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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   25166.91329824 -.00000073  00000-0  72483-5 0  9992
2 01726  59.3796 132.4683 0714628 341.9669  43.1351 11.97073316605815

Epoch: 2025-06-15T21:55Z

TLE epoch observation values (Epoch: 2025-06-15T21:55:08.967Z)

Latitude

26.43554°

Longitude

-83.72609°

Altitude

1,295.563 km

Speed

7.388 km/s

True Right ascension

09h 57m 58s

True Declination

26° 18' 30"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-13.61336°

Longitude

86.04752°

Altitude

2,166.801 km

Speed

6.63 km/s

Apparent Right ascension

19h 04m 51s

Apparent Declination

-49° 59' 18"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

23:35:22

Azimuth

218.611° SW

Elevation

-17.683°

Doppler factor

Orbital elements

Apogee altitude

2,270.2 km

Perigee altitude

1,116.572 km

Semi-major axis

8,071.523 km

Eccentricity

0.07146

Inclination

59.3796°

RAAN

132.4683°

Arg. of periapsis

341.9669°

True anomaly

Unknown

Mean anomaly

43.1351°

Eccentric anomaly

Unknown

Mean motion

2.99302 °/min

Orbital period

120.28 mins

BSTAR

0.0000072483

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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.
10 mins	2025-06-16 21:55:38.910Z	149.827° SSE	2025-06-16 22:00:38.910Z	107.176° ESE	18.958°	2025-06-16 22:05:38.910Z	68.73° E
16 mins	2025-06-16 23:57:38.910Z	221.925° SW	2025-06-17 00:04:38.910Z	357.252° N	44.7°	2025-06-17 00:13:38.910Z	39.804° NE
15 mins	2025-06-17 02:04:38.910Z	282.302° WNW	2025-06-17 02:11:38.910Z	343.569° N	28.049°	2025-06-17 02:19:38.910Z	36.479° NE
16 mins	2025-06-17 04:13:38.910Z	320.931° NNW	2025-06-17 04:20:38.910Z	10.881° NNE	24.761°	2025-06-17 04:29:38.910Z	62.395° ENE
22 mins	2025-06-17 06:19:38.910Z	325.711° NNW	2025-06-17 06:29:38.910Z	42.061° NE	37.51°	2025-06-17 06:41:38.910Z	110.224° ESE
23 mins	2025-06-17 08:25:38.910Z	314.147° NW	2025-06-17 08:35:38.910Z	238.66° WSW	42.675°	2025-06-17 08:48:38.910Z	159.2° S
13 mins	2025-06-17 10:33:38.910Z	285.909° WNW	2025-06-17 10:39:38.910Z	255.628° W	16.927°	2025-06-17 10:46:38.910Z	221.813° 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.