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DONGPO 09

In orbit NORAD 54685 OCHQ-7630-9294-3300-6371 China

Observations 0
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2022

Launch

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Observations all time

Mission information
Spacecraft name
DONGPO 09
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
2022-12-09 00:00:00
Separation time
Satellite appearance
Data for the last 30 days
Orbital parameters of the satellite
Perigee
445.13 km
Apogee
449.74 km
Inclination
97.7°
Period
93.6 min
Semi-major axis
6825.6 km
Velocity
7.64 km/s
Orbital elements
TLE source
Celestrak
TLE updated
2026-10-11 04:56:37 UTC
Two-line elements (TLE)
1 54685U 22167D   26283.93316971  .00013075  00000-0  34601-3 0  9999
2 54685  97.6957 100.3886 0003380  78.4983 281.6640 15.38520754213230
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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
2026-10-11 17:31:59 LEMUR-2-ANDIS
NORAD 42838 		DONGPO 09
NORAD 54685 		4.128 0.61 2.6e-07
2026-10-15 08:08:54 LKW-3
NORAD 43146 		DONGPO 09
NORAD 54685 		1.399 1.46 2.2e-06
2026-10-15 09:03:11 DONGPO 09
NORAD 54685 		ELECTRON KICK STAGE R/B
NORAD 54228 		2.256 14.75 3.6e-07
2026-10-15 17:02:53 DONGPO 09
NORAD 54685 		YAOGAN-36 04C
NORAD 54750 		3.365 8.40 3.3e-07
2026-10-16 13:02:21 DONGPO 09
NORAD 54685 		OBJECT AS
NORAD 57044 		4.542 7.65 1.9e-07
2026-10-17 12:36:32 STARLINK-2685
NORAD 48468 		DONGPO 09
NORAD 54685 		0.798 13.65 1.1e-04

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