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: 22 hours ago
TLE from 22 hours ago
0 YAOGAN 27
1 40878U 15040A 26172.51378911 -.00000410 00000-0 -96877-3 0 9997
2 40878 100.1159 158.7092 0007793 199.9680 160.1130 13.16069011518235Epoch: 2026-06-21T12:19Z
TLE epoch observation values (Epoch: 2026-06-21T12:19:51.379Z)
Latitude
0.00002°
Longitude
64.03214°
Altitude
1,208.051 km
Speed
7.247 km/s
True Right ascension
10h 34m 50s
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
21:41:04
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,203.044 km
Perigee altitude
1,191.237 km
Semi-major axis
7,575.278 km
Eccentricity
0.00078
Inclination
100.1159°
RAAN
158.7092°
Arg. of periapsis
199.968°
True anomaly
160.14335°
Mean anomaly
160.113°
Eccentric anomaly
160.12818°
Mean motion
3.29189 °/min
Orbital period
109.36 mins
BSTAR
-0.00096877
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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 | 2026-06-22 10:51:01.610Z | 39.787° NE | 2026-06-22 10:57:01.610Z | 99.867° ESE | 24.908° | 2026-06-22 11:02:01.610Z | 148.47° SSE |
| 12 mins | 2026-06-22 12:39:01.610Z | 3.201° NNE | 2026-06-22 12:45:01.610Z | 281.453° WNW | 38.876° | 2026-06-22 12:51:01.610Z | 218.52° SW |
| 7 mins | 2026-06-22 21:22:01.610Z | 87.692° E | 2026-06-22 21:25:01.610Z | 57.15° ENE | 19.682° | 2026-06-22 21:29:01.610Z | 18.852° NNE |
| 13 mins | 2026-06-22 23:06:01.610Z | 169.47° S | 2026-06-22 23:12:01.610Z | 259.372° W | 44.403° | 2026-06-22 23:19:01.610Z | 342.115° N |
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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