DELTA 4 R/B, 40535
Orbit data source: Space-Track
DELTA 4 R/B, 40535 is space debris in MEO originally from a launch on Wed, 25 Mar 2015 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
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
40535 intel report (Beta)
Focus sentinelFocus sentinel
Create New Watchlist
Focus sentinelFocus sentinel
Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
ULA Decatur
Mission
Spacecraft
Bus & Motor
DCSS-4, RL10B-2
Mass
2,850 kg wet, 2,850 kg dry
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Cyl + 1 Nozzle, 6.0 m
Radar Cross Section
43.982 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 3 days ago
TLE from 3 days ago
0 DELTA 4 R/B
1 40535U 15013B 25340.20306810 .00000042 00000-0 00000-0 0 9997
2 40535 52.6935 223.5717 0034310 64.0955 296.3510 1.92974475 75439Epoch: 2025-12-06T04:52Z
TLE epoch observation values (Epoch: 2025-12-06T04:52:25.083Z)
Latitude
0.00007°
Longitude
75.24317°
Altitude
20,833.075 km
Speed
3.83 km/s
True Right ascension
14h 54m 19s
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
15:21:19
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
20,967.688 km
Perigee altitude
20,780.682 km
Semi-major axis
27,252.322 km
Eccentricity
0.00343
Inclination
52.6935°
RAAN
223.5717°
Arg. of periapsis
64.0955°
True anomaly
295.99802°
Mean anomaly
296.351°
Eccentric anomaly
296.17458°
Mean motion
0.48243 °/min
Orbital period
746.22 mins
BSTAR
0
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 #13 in the year 2015 (2015-03-25 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 4 R/B 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. |
|---|---|---|---|---|---|---|---|
| 430 mins | 2025-12-08 18:19:57.558Z | 219.326° SW | 2025-12-08 21:40:57.558Z | 340.34° N | 43.994° | 2025-12-09 01:29:57.558Z | 120.553° SE |
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 descending 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 descending order |
|---|