DELTA 1 R/B, 1729

Orbit data source: Space-Track

DELTA 1 R/B, 1729 is space debris in LEO originally from a launch on Sat, 06 Nov 1965 UTC launched from the Air Force Eastern Test Range (AFETR). Debris objects in space refer to the collection of defunct objects orbiting the Earth. Examples of debris include non-operational satellites, rocket bodies, and fragments generated from explosions, collisions, or faulty payload assembly.

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https://www.satcat.com/sats-embedded/1729?theme=dark&initialShowStats=false

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Identifier

1729, 1965-089B

Orbit

LEO

Country

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

ABL

Mission

Spacecraft

Bus & Motor

ALTAIR, Unknown motor

Mass

~60 kg wet, ~60 kg dry

Launch date (UTC)

1965-11-06 (61 years ago)

Launch vehicle

Unknown

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

CYL, 0.8 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 11 hours ago

TLE from 11 hours ago

0 DELTA 1 R/B
1 01729U 65089B   26208.62867024 -.00000014  00000-0  36643-3 0  9991
2 01729  59.3939 282.2090 0710594 216.4851 314.1503 11.97579624655267

Epoch: 2026-07-27T15:05Z

TLE epoch observation values (Epoch: 2026-07-27T15:05:17.108Z)

Latitude

13.3599°

Longitude

-77.45689°

Altitude

1,315.485 km

Speed

7.367 km/s

True Right ascension

06h 16m 41s

True Declination

13° 17' 18"

Sunlit

Object was in daylight 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

15:13:31

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

2,264.504 km

Perigee altitude

1,117.713 km

Semi-major axis

8,069.246 km

Eccentricity

0.07106

Inclination

59.3939°

RAAN

282.209°

Arg. of periapsis

216.4851°

True anomaly

307.93579°

Mean anomaly

314.1503°

Eccentric anomaly

311.08137°

Mean motion

2.99429 °/min

Orbital period

120.23 mins

BSTAR

0.00036643

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

EXPLORER 29 (GEOS 1), 1726

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DELTA 1 R/B 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	2026-07-28 04:15:59.779Z	125.562° SE	2026-07-28 04:20:59.779Z	101.728° ESE	14.067°	2026-07-28 04:25:59.779Z	77.993° E
23 mins	2026-07-28 06:12:59.779Z	193.86° SSW	2026-07-28 06:24:59.779Z	111.856° ESE	40.959°	2026-07-28 06:35:59.779Z	46.128° ENE
23 mins	2026-07-28 08:18:59.779Z	246.18° WSW	2026-07-28 08:30:59.779Z	324.536° NNW	39.638°	2026-07-28 08:41:59.779Z	37.006° NE
19 mins	2026-07-28 10:29:59.779Z	293.816° NW	2026-07-28 10:39:59.779Z	350.818° N	26.855°	2026-07-28 10:48:59.779Z	45.89° ENE
17 mins	2026-07-28 12:39:59.779Z	320.623° NNW	2026-07-28 12:48:59.779Z	14.908° NNE	28.695°	2026-07-28 12:56:59.779Z	76.396° E
18 mins	2026-07-28 14:46:59.779Z	321.387° NNW	2026-07-28 14:56:59.779Z	53.735° ENE	44.181°	2026-07-28 15:04:59.779Z	132.852° SE
12 mins	2026-07-28 16:54:59.779Z	295.804° NW	2026-07-28 17:00:59.779Z	250.228° W	24.54°	2026-07-28 17:06:59.779Z	200.059° SSW

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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 DELTA 1 R/B, 1729 on other resources

View DELTA 1 R/B, 1729 on Heavens-Above

View DELTA 1 R/B, 1729 on Keep Track

View DELTA 1 R/B, 1729 on Celestrak

View DELTA 1 R/B, 1729 on Gunter's Space Page

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

DELTA 1 R/B, 1729

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 11 hours ago

TLE from 11 hours ago

TLE epoch observation values (Epoch: 2026-07-27T15:05:17.108Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

DELTA 1 R/B Visibility forecast

Co-orbital & Co-planar RSOs

Check out DELTA 1 R/B, 1729 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 11 hours ago