DELTA 1 R/B(1), 11636
Orbit data source: Space-Track
DELTA 1 R/B(1), 11636 is space debris in LEO originally from a launch on Fri, 07 Dec 1979 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.
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
11636 intel report (Beta)
Focus sentinelFocus sentinel
Create New Watchlist
Focus sentinelFocus sentinel
Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
MDAC-HB
Mission
Spacecraft
Bus & Motor
DELTA/TR-201, Unknown motor
Mass
845 kg wet, 845 kg dry
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Cyl + 1 Nozzle, 3.2 m
Radar Cross Section
7.796 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 9 hours ago
TLE from 9 hours ago
0 DELTA 1 R/B(1)
1 11636U 79101B 25264.50785088 .00000545 00000-0 29347-3 0 9997
2 11636 28.2123 83.9146 1261501 76.7911 296.9980 12.21046921964308Epoch: 2025-09-21T12:11Z
TLE epoch observation values (Epoch: 2025-09-21T12:11:18.316Z)
Latitude
0°
Longitude
-99.5371°
Altitude
1,239.23 km
Speed
7.393 km/s
True Right ascension
05h 35m 39s
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
13:44:57
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
2,597.159 km
Perigee altitude
586.353 km
Semi-major axis
7,969.893 km
Eccentricity
0.12615
Inclination
28.2123°
RAAN
83.9146°
Arg. of periapsis
76.7911°
True anomaly
283.26172°
Mean anomaly
296.998°
Eccentric anomaly
290.21537°
Mean motion
3.05045 °/min
Orbital period
118.02 mins
BSTAR
0.00029347
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #101 in the year 1979 (1979-12-07 UTC)
Did you know?
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(1) Visibility forecast
Loading observer location...
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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2025-09-22 18:00:31.910Z | 201.706° SSW | 2025-09-22 18:01:31.910Z | 184.299° SSW | 16.487° | 2025-09-22 18:04:31.910Z | 137.649° SSE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in ascending order |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in ascending order |
|---|