QIANFAN-28, 61561
Orbit data source: Space-Track
QIANFAN-28, 61561 is a Chinese payload satellite in LEO that was launched on Tue, 15 Oct 2024 UTC via a CHANG ZHENG 6A 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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61561 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
GESIH/SECM
Mission
Partially operational Commercial Communications
Bus & Motor
QIANFAN, Unknown motor
Mass
267 kg wet, ~267 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 1 Pan, 5.0 m
Radar Cross Section
13.200 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 16 hours ago
TLE from 16 hours ago
0 QIANFAN-28
1 61561U 24185K 26235.55510980 .00000580 00000-0 22589-3 0 9992
2 61561 88.9820 47.2045 0007795 156.9253 203.2293 14.28458117106400Epoch: 2026-08-23T13:19Z
TLE epoch observation values (Epoch: 2026-08-23T13:19:21.486Z)
Latitude
-0.00007°
Longitude
-124.48451°
Altitude
805.096 km
Speed
7.448 km/s
True Right ascension
03h 08m 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
20:47:22
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
799.419 km
Perigee altitude
788.238 km
Semi-major axis
7,171.966 km
Eccentricity
0.00078
Inclination
88.982°
RAAN
47.2045°
Arg. of periapsis
156.9253°
True anomaly
203.1941°
Mean anomaly
203.2293°
Eccentric anomaly
203.2117°
Mean motion
3.57343 °/min
Orbital period
100.74 mins
BSTAR
0.00022589
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Other satellites on launch #185 in the year 2024 (2024-10-15 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.QIANFAN-28 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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-08-24 11:17:46.025Z | 145.829° SSE | 2026-08-24 11:21:46.025Z | 89.551° E | 31.553° | 2026-08-24 11:26:46.025Z | 16.031° NNE |
| 7 mins | 2026-08-24 12:59:46.025Z | 233.81° WSW | 2026-08-24 13:02:46.025Z | 275.439° WNW | 21.934° | 2026-08-24 13:06:46.025Z | 328.633° NNW |
| 8 mins | 2026-08-24 23:32:46.025Z | 13.335° NNE | 2026-08-24 23:35:46.025Z | 72.489° E | 41.599° | 2026-08-24 23:40:46.025Z | 169.753° S |
| 4 mins | 2026-08-25 01:14:46.025Z | 303.634° NW | 2026-08-25 01:15:46.025Z | 291.304° WNW | 13.893° | 2026-08-25 01:18:46.025Z | 255.537° W |
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 |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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