BULGARIASAT-1, 42801
Orbit data source: Space-Track
BULGARIASAT-1, 42801 is a payload satellite owned by Bulgaria Sat (BG) in GEO that was launched on Fri, 23 Jun 2017 UTC via an FALCON 9 launch vehicle from the Air Force Eastern Test Range (AFETR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
42801 intel report (Beta)
Focus sentinelFocus sentinel
Create New Watchlist
Focus sentinelFocus sentinel
Edit Public Description
Identifier
Orbit
Country
BG / BGRRelated business
Manufacturer
SS/Loral (MDA)
Mission
Operational Commercial Communications
Bus & Motor
SSL-1300, R-4D-15-300
Mass
~4,000 kg wet, ~3,000 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 15.5 m
Radar Cross Section
40.765 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 11 hours ago
TLE from 11 hours ago
0 BULGARIASAT-1
1 42801U 17038A 25303.82822432 .00000022 00000-0 00000-0 0 9992
2 42801 0.0351 94.2447 0002893 134.8802 110.3501 1.00273016 30536Epoch: 2025-10-30T19:52Z
TLE epoch observation values (Epoch: 2025-10-30T19:52:38.581Z)
Latitude
0.00184°
Longitude
1.92786°
Altitude
35,790.013 km
Speed
3.074 km/s
True Right ascension
22h 37m 52s
True Declination
0° 00' 07"
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
02:03:25
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
35,799.519 km
Perigee altitude
35,775.122 km
Semi-major axis
42,165.457 km
Eccentricity
0.00029
Inclination
0.0351°
RAAN
94.2447°
Arg. of periapsis
134.8802°
True anomaly
110.38118°
Mean anomaly
110.3501°
Eccentric anomaly
110.36564°
Mean motion
0.25067 °/min
Orbital period
1,436.13 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 #38 in the year 2017 (2017-06-23 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.BULGARIASAT-1 Visibility
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. |
|---|---|---|---|---|---|---|---|
| BULGARIASAT-1 is likely not visible in the next few days. |
Loading historical data...
42801 neighbors
Authenticating...
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 |
|---|