DELTA 2 R/B, 25876
Orbit data source: Space-Track
DELTA 2 R/B, 25876 is space debris in LEO originally from a launch on Sun, 25 Jul 1999 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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25876 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
Boeing/HB
Mission
Spacecraft
Bus & Motor
DELTA/0020, Unknown motor
Mass
1,188 kg wet, 919 kg dry
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Cyl + Cone, 3.0 m
Radar Cross Section
13.645 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 DELTA 2 R/B
1 25876U 99041E 25306.13543551 .00000908 00000-0 18505-3 0 9993
2 25876 51.7633 90.5073 0504688 332.1011 25.3673 14.11257682345017Epoch: 2025-11-02T03:15Z
TLE epoch observation values (Epoch: 2025-11-02T03:15:01.628Z)
Latitude
-0.00002°
Longitude
0.095°
Altitude
529.574 km
Speed
7.769 km/s
True Right ascension
06h 02m 01s
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
13:15:04
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,220.606 km
Perigee altitude
490.457 km
Semi-major axis
7,233.668 km
Eccentricity
0.05047
Inclination
51.7633°
RAAN
90.5073°
Arg. of periapsis
332.1011°
True anomaly
27.99343°
Mean anomaly
25.3673°
Eccentric anomaly
26.66499°
Mean motion
3.52781 °/min
Orbital period
102.05 mins
BSTAR
0.00018505
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Other satellites on launch #41 in the year 1999 (1999-07-25 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 2 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. |
|---|---|---|---|---|---|---|---|
| 14 mins | 2025-11-03 18:48:40.136Z | 307.396° NW | 2025-11-03 18:55:40.136Z | 21.95° NNE | 44.981° | 2025-11-03 19:02:40.136Z | 128.202° SE |
| 10 mins | 2025-11-03 20:37:40.136Z | 279.023° WNW | 2025-11-03 20:42:40.136Z | 227.083° WSW | 24.96° | 2025-11-03 20:47:40.136Z | 183.126° SSW |
| 8 mins | 2025-11-04 11:30:40.136Z | 197.847° SSW | 2025-11-04 11:33:40.136Z | 121.857° SE | 36.579° | 2025-11-04 11:38:40.136Z | 60.58° ENE |
| 9 mins | 2025-11-04 13:16:40.136Z | 273.277° WNW | 2025-11-04 13:19:40.136Z | 325.197° NNW | 33.884° | 2025-11-04 13:25:40.136Z | 46.484° ENE |
| 9 mins | 2025-11-04 15:04:40.136Z | 313.647° NW | 2025-11-04 15:07:40.136Z | 353.531° N | 24.923° | 2025-11-04 15:13:40.136Z | 56.071° ENE |
| 11 mins | 2025-11-04 16:51:40.136Z | 320.411° NNW | 2025-11-04 16:56:40.136Z | 29.83° NE | 32.232° | 2025-11-04 17:02:40.136Z | 87.058° E |
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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