BD-19, 40749
Orbit data source: Space-Track
BD-19, 40749 is a payload satellite owned by CNSA (CN) in MEO that was launched on Sat, 25 Jul 2015 UTC via a CHANG ZHENG 3B/YZ-1 launch vehicle from the Xichang Space Center, China (XSC). 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.
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40749 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
CAST
Mission
Awaiting activation Defense Navigation
Bus & Motor
BD-3M, Unknown motor
Mass
1,014 kg wet, ~850 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 5.0 m
Radar Cross Section
8.984 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 15 hours ago
TLE from 15 hours ago
0 BD-19
1 40749U 15037B 25310.18621392 -.00000050 00000-0 00000-0 0 9999
2 40749 55.0671 309.7087 0002999 351.6104 8.3924 1.86253781 69971Epoch: 2025-11-06T04:28Z
TLE epoch observation values (Epoch: 2025-11-06T04:28:08.882Z)
Latitude
-0.00001°
Longitude
-162.98016°
Altitude
21,517.795 km
Speed
3.781 km/s
True Right ascension
20h 38m 49s
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
15:11:21
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
21,534.149 km
Perigee altitude
21,517.412 km
Semi-major axis
27,903.917 km
Eccentricity
0.0003
Inclination
55.0671°
RAAN
309.7087°
Arg. of periapsis
351.6104°
True anomaly
8.39742°
Mean anomaly
8.3924°
Eccentric anomaly
8.39491°
Mean motion
0.46563 °/min
Orbital period
773.14 mins
BSTAR
0
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Other satellites on launch #37 in the year 2015 (2015-07-25 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.BD-19 Visibility forecast
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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. |
|---|---|---|---|---|---|---|---|
| 382 mins | 2025-11-07 07:30:49.761Z | 288.512° WNW | 2025-11-07 10:58:49.761Z | 251.268° W | 44.595° | 2025-11-07 13:52:49.761Z | 179.7° S |
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 |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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