DELTA 1 R/B, 4377
Orbit data source: Space-Track
DELTA 1 R/B, 4377 is space debris in HEO originally from a launch on Thu, 23 Apr 1970 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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4377 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
Thiokol/TE
Mission
Spacecraft
Bus & Motor
STAR 37, Unknown motor
Mass
65 kg wet, 65 kg dry
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 10 hours ago
TLE from 10 hours ago
0 DELTA 1 R/B
1 04377U 70032B 26126.08683382 .00007353 00000-0 98677-3 0 9996
2 04377 26.7363 71.5692 5685149 245.3541 46.6815 4.54016443631722Epoch: 2026-05-06T02:05Z
TLE epoch observation values (Epoch: 2026-05-06T02:05:02.442Z)
Latitude
0.00003°
Longitude
176.32462°
Altitude
7,298.36 km
Speed
5.694 km/s
True Right ascension
04h 46m 08s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
19:43:18
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
17,791.892 km
Perigee altitude
270.832 km
Semi-major axis
15,409.499 km
Eccentricity
0.56851
Inclination
26.7363°
RAAN
71.5692°
Arg. of periapsis
245.3541°
True anomaly
114.70912°
Mean anomaly
46.6815°
Eccentric anomaly
78.61393°
Mean motion
1.13465 °/min
Orbital period
317.28 mins
BSTAR
0.00098677
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Other satellites on launch #32 in the year 1970 (1970-04-23 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.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. |
|---|---|---|---|---|---|---|---|
| 98 mins | 2026-05-06 18:13:23.097Z | 108.905° ESE | 2026-05-06 18:57:23.097Z | 89.895° E | 11.896° | 2026-05-06 19:51:23.097Z | 78.734° E |
| 242 mins | 2026-05-06 23:14:23.097Z | 228.934° WSW | 2026-05-07 01:42:23.097Z | 169.077° S | 43.399° | 2026-05-07 03:16:23.097Z | 106.345° ESE |
| 112 mins | 2026-05-07 06:55:23.097Z | 283.473° WNW | 2026-05-07 08:29:23.097Z | 245.809° WSW | 22.917° | 2026-05-07 08:47:23.097Z | 196.976° SSW |
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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