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.
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40878 intel report (Beta)
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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: 9 hours ago
TLE from 9 hours ago
0 YAOGAN 27
1 40878U 15040A 26283.95998134 -.00000624 00000-0 -15305-2 0 9996
2 40878 100.1303 265.3832 0007832 311.6014 48.4428 13.16073021532893Epoch: 2026-10-10T23:02Z
TLE epoch observation values (Epoch: 2026-10-10T23:02:22.387Z)
Latitude
-0.00004°
Longitude
-99.76969°
Altitude
1,198.545 km
Speed
7.257 km/s
True Right ascension
17h 41m 31s
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
02:47:15
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,203.059 km
Perigee altitude
1,191.193 km
Semi-major axis
7,575.263 km
Eccentricity
0.00078
Inclination
100.1303°
RAAN
265.3832°
Arg. of periapsis
311.6014°
True anomaly
48.51°
Mean anomaly
48.4428°
Eccentric anomaly
48.4764°
Mean motion
3.2919 °/min
Orbital period
109.36 mins
BSTAR
-0.0015305
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Other satellites on launch #40 in the year 2015 (2015-08-27 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.YAOGAN 27 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. |
|---|---|---|---|---|---|---|---|
| 11 mins | 2026-10-11 10:36:56.413Z | 41.289° NE | 2026-10-11 10:41:56.413Z | 88.682° E | 27.128° | 2026-10-11 10:47:56.413Z | 148.606° SSE |
| 12 mins | 2026-10-11 12:24:56.413Z | 3.146° NNE | 2026-10-11 12:29:56.413Z | 306.647° NW | 54.83° | 2026-10-11 12:36:56.413Z | 217.255° SW |
| 8 mins | 2026-10-11 21:06:56.413Z | 93.14° ESE | 2026-10-11 21:10:56.413Z | 54.445° ENE | 20.4° | 2026-10-11 21:14:56.413Z | 17.492° NNE |
| 12 mins | 2026-10-11 22:51:56.413Z | 168.508° S | 2026-10-11 22:57:56.413Z | 286.824° WNW | 78.697° | 2026-10-11 23:03:56.413Z | 341.968° N |
| 4 mins | 2026-10-12 00:44:56.413Z | 259.452° W | 2026-10-12 00:45:56.413Z | 268.085° W | 12.38° | 2026-10-12 00:48:56.413Z | 293.555° NW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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