QIANFAN-21, 61554
Orbit data source: Space-Track
QIANFAN-21, 61554 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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61554 intel report (Beta)
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Edit Public Description
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: 18 hours ago
TLE from 18 hours ago
0 QIANFAN-21
1 61554U 24185C 25260.22884971 .00000583 00000-0 25535-3 0 9996
2 61554 88.9668 87.1198 0008634 289.0720 70.9536 14.22416859 57678Epoch: 2025-09-17T05:29Z
TLE epoch observation values (Epoch: 2025-09-17T05:29:32.614Z)
Latitude
-0.00005°
Longitude
8.32611°
Altitude
818.224 km
Speed
7.445 km/s
True Right ascension
05h 48m 28s
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
16:14:07
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
820.348 km
Perigee altitude
807.929 km
Semi-major axis
7,192.276 km
Eccentricity
0.00086
Inclination
88.9668°
RAAN
87.1198°
Arg. of periapsis
289.072°
True anomaly
71.04715°
Mean anomaly
70.9536°
Eccentric anomaly
71.00037°
Mean motion
3.55831 °/min
Orbital period
101.17 mins
BSTAR
0.00025535
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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-21 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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2025-09-18 00:38:00.656Z | 6.078° NNE | 2025-09-18 00:43:00.656Z | 68.571° E | 42.742° | 2025-09-18 00:48:00.656Z | 172.085° S |
| 6 mins | 2025-09-18 12:02:00.656Z | 118.424° SE | 2025-09-18 12:04:00.656Z | 88.109° E | 24.164° | 2025-09-18 12:08:00.656Z | 29.792° NE |
| 8 mins | 2025-09-18 13:42:00.656Z | 218.883° SW | 2025-09-18 13:46:00.656Z | 286.69° WNW | 29.278° | 2025-09-18 13:50:00.656Z | 338.519° N |
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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
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