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: 8 hours ago
TLE from 8 hours ago
0 QIANFAN-21
1 61554U 24185C 25310.31444278 .00001023 00000-0 45182-3 0 9994
2 61554 88.9714 81.2391 0012576 118.0017 242.2449 14.22526976 64790Epoch: 2025-11-06T07:32Z
TLE epoch observation values (Epoch: 2025-11-06T07:32:47.856Z)
Latitude
0.00005°
Longitude
-77.73483°
Altitude
824.1 km
Speed
7.439 km/s
True Right ascension
05h 24m 57s
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
11:46:44
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
822.812 km
Perigee altitude
804.723 km
Semi-major axis
7,191.904 km
Eccentricity
0.00126
Inclination
88.9714°
RAAN
81.2391°
Arg. of periapsis
118.0017°
True anomaly
242.11746°
Mean anomaly
242.2449°
Eccentric anomaly
242.18117°
Mean motion
3.55858 °/min
Orbital period
101.16 mins
BSTAR
0.00045182
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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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2025-11-06 19:57:46.065Z | 41.129° NE | 2025-11-06 20:00:46.065Z | 78.105° E | 17.248° | 2025-11-06 20:03:46.065Z | 115.89° SE |
| 8 mins | 2025-11-06 21:38:46.065Z | 344.44° N | 2025-11-06 21:42:46.065Z | 260.201° W | 37.501° | 2025-11-06 21:46:46.065Z | 203.799° SW |
| 8 mins | 2025-11-07 08:59:46.065Z | 160.65° S | 2025-11-07 09:03:46.065Z | 66.647° ENE | 41.104° | 2025-11-07 09:07:46.065Z | 8.27° NNE |
| 4 mins | 2025-11-07 10:43:46.065Z | 265.359° W | 2025-11-07 10:44:46.065Z | 277.844° WNW | 14.589° | 2025-11-07 10:47:46.065Z | 313.505° NW |
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
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