OBJECT D, 43761
Orbit data source: Space-Track
OBJECT D, 43761 is a satellite in SSO that was launched on Mon, 03 Dec 2018 UTC via an FALCON 9 launch vehicle from the Air Force Western Test Range (AFWTR). Unknown objects in Earth's orbit typically refer to objects detected orbiting the Earth but have not yet been identified or cataloged. These objects could be anything from previously untracked satellites, spent rocket stages, debris from satellite collisions, or even natural meteoroids temporarily captured by Earth's gravity.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
43761 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Edit Sat Name
Focus sentinelFocus sentinel
Create New Watchlist
Identifier
Orbit
Country
TBDRelated business
None
Manufacturer
Unknown
Mission
Non-operational Amateur Technology
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
Launch vehicle
Launch site
Object type
Unknown
Shape & HBR
Box, 0.1 m
Radar Cross Section
0.015 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 OBJECT D
1 43761U 18099D 26171.07943880 .00001500 00000-0 10529-3 0 9990
2 43761 97.4165 211.7981 0010763 342.9334 17.1531 15.06571478412547Epoch: 2026-06-20T01:54Z
TLE epoch observation values (Epoch: 2026-06-20T01:54:23.512Z)
Latitude
0.00006°
Longitude
-85.09908°
Altitude
542.635 km
Speed
7.595 km/s
True Right ascension
14h 07m 11s
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
21:42:21
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
551.12 km
Perigee altitude
536.22 km
Semi-major axis
6,921.807 km
Eccentricity
0.00108
Inclination
97.4165°
RAAN
211.7981°
Arg. of periapsis
342.9334°
True anomaly
17.18952°
Mean anomaly
17.1531°
Eccentric anomaly
17.17131°
Mean motion
3.76889 °/min
Orbital period
95.52 mins
BSTAR
0.00010529
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 #99 in the year 2018 (2018-12-03 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.OBJECT D 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-06-22 15:03:18.707Z | 37.099° NE | 2026-06-22 15:06:18.707Z | 103.466° ESE | 29.114° | 2026-06-22 15:09:18.707Z | 160.526° S |
| 4 mins | 2026-06-23 01:48:18.707Z | 95.295° ESE | 2026-06-23 01:50:18.707Z | 57.935° ENE | 16.403° | 2026-06-23 01:52:18.707Z | 26.756° NE |
| 5 mins | 2026-06-23 03:22:18.707Z | 214.746° SW | 2026-06-23 03:24:18.707Z | 265.068° W | 27.75° | 2026-06-23 03:27:18.707Z | 323.979° NNW |
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 |
|---|