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: 10 hours ago
TLE from 10 hours ago
0 QIANFAN-28
1 61561U 24185K 26185.88851606 .00000842 00000-0 33092-3 0 9997
2 61561 88.9826 53.0267 0006901 357.2439 2.8717 14.28409976 99311Epoch: 2026-07-04T21:19Z
TLE epoch observation values (Epoch: 2026-07-04T21:19:27.787Z)
Latitude
0.00002°
Longitude
170.26518°
Altitude
795.169 km
Speed
7.459 km/s
True Right ascension
03h 32m 06s
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
18:44:47
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
798.939 km
Perigee altitude
789.04 km
Semi-major axis
7,172.127 km
Eccentricity
0.00069
Inclination
88.9826°
RAAN
53.0267°
Arg. of periapsis
357.2439°
True anomaly
2.87567°
Mean anomaly
2.8717°
Eccentric anomaly
2.87368°
Mean motion
3.57331 °/min
Orbital period
100.75 mins
BSTAR
0.00033092
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-07-05 14:17:06.338Z | 109.108° ESE | 2026-07-05 14:20:06.338Z | 73.507° E | 15.002° | 2026-07-05 14:22:06.338Z | 48.703° ENE |
| 9 mins | 2026-07-05 15:56:06.338Z | 194.522° SSW | 2026-07-05 16:00:06.338Z | 264.26° W | 40.64° | 2026-07-05 16:05:06.338Z | 350.55° N |
| 7 mins | 2026-07-06 02:30:06.338Z | 35.089° NE | 2026-07-06 02:33:06.338Z | 76.979° E | 23.155° | 2026-07-06 02:37:06.338Z | 132.95° SE |
| 7 mins | 2026-07-06 04:11:06.338Z | 332.59° NNW | 2026-07-06 04:14:06.338Z | 281.729° WNW | 30.278° | 2026-07-06 04:18:06.338Z | 218.854° SW |
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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