OBJECT BF, 60521
Orbit data source: Space-Track
OBJECT BF, 60521 is a satellite in SSO that was launched on Fri, 16 Aug 2024 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
60521 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Create New Watchlist
Identifier
Orbit
Country
TBDRelated business
Swedish Defence Research Agency (SE)Manufacturer
FOI
Mission
Operational Defense Communications
Bus & Motor
CUBESAT 3U, Unknown motor
Mass
4 kg wet, 4 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Unknown
Shape & HBR
Box, 0.1 m
Radar Cross Section
0.035 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 11 hours ago
TLE from 11 hours ago
0 OBJECT BF
1 60521U 24149BF 26126.49984200 .00111478 00000-0 87121-3 0 9991
2 60521 97.3779 219.7167 0000903 65.6541 294.4816 15.71298474 96513Epoch: 2026-05-06T11:59Z
TLE epoch observation values (Epoch: 2026-05-06T11:59:46.348Z)
Latitude
-0.00005°
Longitude
175.41414°
Altitude
358.093 km
Speed
7.694 km/s
True Right ascension
14h 38m 52s
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
06:45:28
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
352.689 km
Perigee altitude
351.474 km
Semi-major axis
6,730.219 km
Eccentricity
0.00009
Inclination
97.3779°
RAAN
219.7167°
Arg. of periapsis
65.6541°
True anomaly
294.47218°
Mean anomaly
294.4816°
Eccentric anomaly
294.47689°
Mean motion
3.93097 °/min
Orbital period
91.58 mins
BSTAR
0.00087121
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 #149 in the year 2024 (2024-08-16 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 BF 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-05-07 06:27:44.554Z | 182.917° SSW | 2026-05-07 06:30:44.554Z | 295.978° NW | 34.764° | 2026-05-07 06:32:44.554Z | 336.007° NNW |
| 4 mins | 2026-05-07 19:07:44.554Z | 8.536° NNE | 2026-05-07 19:08:44.554Z | 0.754° NNE | 39.869° | 2026-05-07 19:11:44.554Z | 195.387° SSW |
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 |
|---|