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: 9 hours ago
TLE from 9 hours ago
0 QIANFAN-21
1 61554U 24185C 25340.20911638 .00001207 00000-0 53396-3 0 9994
2 61554 88.9737 77.7432 0011374 35.2554 324.9387 14.22594127 69047Epoch: 2025-12-06T05:01Z
TLE epoch observation values (Epoch: 2025-12-06T05:01:07.655Z)
Latitude
-0.00007°
Longitude
-72.77884°
Altitude
812.953 km
Speed
7.45 km/s
True Right ascension
05h 10m 58s
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
12:10:55
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
821.72 km
Perigee altitude
805.361 km
Semi-major axis
7,191.678 km
Eccentricity
0.00114
Inclination
88.9737°
RAAN
77.7432°
Arg. of periapsis
35.2554°
True anomaly
324.86374°
Mean anomaly
324.9387°
Eccentric anomaly
324.90123°
Mean motion
3.55875 °/min
Orbital period
101.16 mins
BSTAR
0.00053396
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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
Loading observer location...
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 | 2025-12-06 19:06:56.002Z | 357.102° N | 2025-12-06 19:10:56.002Z | 242.984° WSW | 44.361° | 2025-12-06 19:15:56.002Z | 187.106° SSW |
| 8 mins | 2025-12-07 06:27:56.002Z | 144.688° SSE | 2025-12-07 06:31:56.002Z | 78.067° E | 32.665° | 2025-12-07 06:35:56.002Z | 18.196° NNE |
| 6 mins | 2025-12-07 08:10:56.002Z | 245.755° WSW | 2025-12-07 08:12:56.002Z | 275.583° WNW | 21.302° | 2025-12-07 08:16:56.002Z | 327.836° NNW |
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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