YAOGAN 27, 40878
Orbit data source: Space-Track
YAOGAN 27, 40878 is a payload satellite owned by PLA GAD (CN) in SSO that was launched on Thu, 27 Aug 2015 UTC via a CHANG ZHENG 4C launch vehicle from the Taiyaun Space Center, China (TSC). 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
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
40878 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Create New Watchlist
Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
SAST
Mission
Operational Defense Imaging
Bus & Motor
JB-9, Unknown motor
Mass
1,040 kg wet, 1,040 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 2.5 m
Radar Cross Section
4.795 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 14 hours ago
TLE from 14 hours ago
0 YAOGAN 27
1 40878U 15040A 26075.28309363 -.00000272 00000-0 -60545-3 0 9997
2 40878 100.1109 65.7193 0008893 69.9240 290.2831 13.16064743505448Epoch: 2026-03-16T06:47Z
TLE epoch observation values (Epoch: 2026-03-16T06:47:39.289Z)
Latitude
0.00005°
Longitude
149.92779°
Altitude
1,200.182 km
Speed
7.255 km/s
True Right ascension
04h 22m 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
01:09:38
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,203.893 km
Perigee altitude
1,190.42 km
Semi-major axis
7,575.294 km
Eccentricity
0.00089
Inclination
100.1109°
RAAN
65.7193°
Arg. of periapsis
69.924°
True anomaly
290.18748°
Mean anomaly
290.2831°
Eccentric anomaly
290.23529°
Mean motion
3.29188 °/min
Orbital period
109.36 mins
BSTAR
-0.00060545
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 #40 in the year 2015 (2015-08-27 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.YAOGAN 27 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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-03-16 21:33:20.333Z | 100.879° ESE | 2026-03-16 21:38:20.333Z | 53.982° ENE | 19.866° | 2026-03-16 21:42:20.333Z | 16.573° NNE |
| 12 mins | 2026-03-16 23:19:20.333Z | 170.85° S | 2026-03-16 23:25:20.333Z | 281.059° WNW | 44.017° | 2026-03-16 23:31:20.333Z | 340.929° N |
| 8 mins | 2026-03-17 10:49:20.333Z | 56.956° ENE | 2026-03-17 10:53:20.333Z | 98.123° ESE | 19.962° | 2026-03-17 10:57:20.333Z | 135.368° SSE |
| 12 mins | 2026-03-17 12:35:20.333Z | 8.387° NNE | 2026-03-17 12:41:20.333Z | 277.398° WNW | 42.807° | 2026-03-17 12:47:20.333Z | 209.626° SW |
| 4 mins | 2026-03-17 14:26:20.333Z | 319.237° NNW | 2026-03-17 14:27:20.333Z | 310.405° NW | 12.625° | 2026-03-17 14:30:20.333Z | 284.851° WNW |
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 |
|---|