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DEIMOS 1

In orbit NORAD 35681 KVIJ-9416-6024-1883-2597 Spain

Observations 0
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2009

Launch

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Observations all time

Mission information
Spacecraft name
DEIMOS 1
Other names
2009-041A
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
2009-07-29 00:00:00
Separation time
Satellite appearance
Data for the last 30 days
Orbital parameters of the satellite
Perigee
639.76 km
Apogee
642.51 km
Inclination
97.8°
Period
97.6 min
Semi-major axis
7019.3 km
Velocity
7.52 km/s
Orbital elements
TLE source
Celestrak
TLE updated
2026-10-12 13:08:37 UTC
Two-line elements (TLE)
1 35681U 09041A   26285.31951083  .00000572  00000-0  91469-4 0  9997
2 35681  97.7559  77.5931 0001988 123.4778 236.6622 14.75335460924153
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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 02:00:50 DEIMOS-1
NORAD 35681 		METEOR 2-5 DEB
NORAD 28594 		3.832 15.03 1.0e-07
2026-10-13 02:49:38 DEIMOS-1
NORAD 35681 		METEOR 2-5 DEB
NORAD 28594 		4.016 14.99 9.3e-08
2026-10-13 03:38:31 DEIMOS-1
NORAD 35681 		METEOR 2-5 DEB
NORAD 28594 		3.600 15.02 1.2e-07
2026-10-13 04:27:19 DEIMOS-1
NORAD 35681 		METEOR 2-5 DEB
NORAD 28594 		1.390 14.99 7.8e-07
2026-10-13 06:05:01 DEIMOS-1
NORAD 35681 		METEOR 2-5 DEB
NORAD 28594 		3.907 14.99 9.9e-08
2026-10-15 08:42:10 DEIMOS-1
NORAD 35681 		FENGYUN 1C DEB
NORAD 32222 		4.603 14.69 8.1e-08
2026-10-16 03:41:30 DEIMOS-1
NORAD 35681 		FENGYUN 1C DEB
NORAD 30967 		4.466 14.93 8.0e-08
2026-10-16 17:49:59 DEIMOS-1
NORAD 35681 		CZ-6A DEB
NORAD 61090 		3.245 14.48 1.8e-07
2026-10-16 23:35:39 DEIMOS-1
NORAD 35681 		FENGYUN 1C DEB
NORAD 29933 		0.327 2.70 4.1e-05
2026-10-17 03:40:29 DEIMOS-1
NORAD 35681 		COSMOS 2506 DEB
NORAD 47212 		4.491 9.52 1.8e-07
2026-10-17 21:17:12 DEIMOS-1
NORAD 35681 		CZ-6A DEB
NORAD 60624 		0.964 15.07 1.6e-06

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