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DAQI 1

In orbit NORAD 52257 YBVQ-8645-2218-5786-5346 China

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2022

Launch

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Observations all time

Mission information
Spacecraft name
DAQI 1
Other names
2022-039A
Status
Active
The satellite is in orbit
The network has not received data from this satellite for a long time
Launch and timeline
Launch time
2022-04-15 00:00:00
Separation time
2022-04-15 00:00:00
Satellite appearance
Data for the last 30 days
Orbital parameters of the satellite
Perigee
695.97 km
Apogee
699.20 km
Inclination
98.2°
Period
98.8 min
Semi-major axis
7075.7 km
Velocity
7.49 km/s
Orbital elements
TLE source
Celestrak
TLE updated
2026-10-13 14:09:02 UTC
Two-line elements (TLE)
1 52257U 22039A   26286.27755822  .00000678  00000-0  15829-3 0  9998
2 52257  98.1570 222.7268 0002287 244.1913 115.9050 14.57734910239146
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Orbit history, past year

Mean elements of every TLE set over the past 365 days, plotted against the epoch of the set. Each source is its own line; click it in the legend to hide it. A jump in altitude is a manoeuvre or a bad set; lines drifting apart are a disagreement between sources. “TLE age” is how many hours have passed since the epoch of the source's freshest set, plotted against when the set reached us, on a logarithmic scale. A set the source repeats unchanged does not reset the age.

Prediction divergence

Each TLE set is propagated with SGP4 to the epoch of the next set from the same source and compared with it, plotted against the epoch of the next set; the tooltip shows how many hours ahead the prediction ran. The logarithmic scale shows the size of the divergence and the tooltip its sign: plus along-track means the prediction is ahead of the satellite. This is how well the sets agree, not the true error: the reference is a TLE too, off by about a kilometre. An outlier is a manoeuvre between sets. Sets more than a week apart are not compared.

Time of closest approach, UTC Object 1 Object 2 Distance, km Speed, km/s Max. probability
2026-10-13 20:04:59 DAQI-1
NORAD 52257 		SL-16 DEB
NORAD 27750 		4.608 5.80 1.9e-07
2026-10-13 21:05:43 YAOGAN-33 01
NORAD 47302 		DAQI-1
NORAD 52257 		4.912 7.28 1.6e-07
2026-10-14 07:01:55 DAQI-1
NORAD 52257 		CZ-6A DEB
NORAD 61305 		1.932 4.01 1.1e-06
2026-10-15 18:06:00 DAQI-1
NORAD 52257 		FENGYUN 1C DEB
NORAD 31071 		3.744 14.80 1.2e-07
2026-10-17 10:38:53 DAQI-1
NORAD 52257 		DMSP 5D-2 F13 DEB
NORAD 40469 		1.655 13.72 8.1e-07
2026-10-17 12:41:27 DAQI-1
NORAD 52257 		CZ-4B DEB
NORAD 26234 		4.481 14.81 8.0e-08
2026-10-18 09:23:56 DAQI-1
NORAD 52257 		CZ-6A DEB
NORAD 56641 		3.782 14.81 1.1e-07
2026-10-18 23:47:10 DAQI-1
NORAD 52257 		DELTA 1 DEB
NORAD 8959 		3.917 5.28 2.7e-07

Data: CelesTrak SOCRATES Plus, computed from TLEs of the public catalog. This is an estimate, not grounds for a manoeuvre: TLEs carry no covariance, and the maximum probability assumes a position error.

All conjunctions of this satellite