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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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-21
1 61554U 24185C 26171.43498373 .00000424 00000-0 18210-3 0 9994
2 61554 88.9753 54.7603 0012871 101.4044 258.8594 14.22857503 96947Epoch: 2026-06-20T10:26Z
TLE epoch observation values (Epoch: 2026-06-20T10:26:22.594Z)
Latitude
-0.00003°
Longitude
-10.48349°
Altitude
820.563 km
Speed
7.442 km/s
True Right ascension
03h 39m 02s
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
07:24:27
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
821.908 km
Perigee altitude
803.397 km
Semi-major axis
7,190.789 km
Eccentricity
0.00129
Inclination
88.9753°
RAAN
54.7603°
Arg. of periapsis
101.4044°
True anomaly
258.71473°
Mean anomaly
258.8594°
Eccentric anomaly
258.78706°
Mean motion
3.55941 °/min
Orbital period
101.14 mins
BSTAR
0.0001821
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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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-06-21 03:53:40.970Z | 18.805° NNE | 2026-06-21 03:58:40.970Z | 95.047° ESE | 31.329° | 2026-06-21 04:02:40.970Z | 150.29° SSE |
| 6 mins | 2026-06-21 05:36:40.970Z | 319.952° NNW | 2026-06-21 05:39:40.970Z | 274.234° WNW | 22.154° | 2026-06-21 05:42:40.970Z | 235.173° WSW |
| 4 mins | 2026-06-21 15:18:40.970Z | 89.019° E | 2026-06-21 15:19:40.970Z | 76.297° E | 14.759° | 2026-06-21 15:22:40.970Z | 41.355° NE |
| 8 mins | 2026-06-21 16:56:40.970Z | 194.651° SSW | 2026-06-21 17:00:40.970Z | 287.113° WNW | 41.17° | 2026-06-21 17:04:40.970Z | 349.529° 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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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