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Landsat 7

In orbit NORAD 25682 OJRG-0276-8900-7430-9976 United States of America

Observations 0
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1999

Launch

0

Observations all time

Mission information
Spacecraft name
Landsat 7
Other names
1999-020A
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
1999-04-15 00:00:00
Separation time
1999-04-15 00:00:00
Satellite appearance
Data for the last 30 days
Orbital parameters of the satellite
Perigee
676.13 km
Apogee
678.61 km
Inclination
97.9°
Period
98.4 min
Semi-major axis
7055.5 km
Velocity
7.5 km/s
Orbital elements
TLE source
Space-Track.org
TLE updated
2026-10-08 08:46:43 UTC
Two-line elements (TLE)
1 25682U 99020A   26280.89290925  .00000231  00000-0  52565-4 0  9998
2 25682  97.8649 279.4054 0001758  90.2461  24.0800 14.63993804462331
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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
2026-10-14 09:56:33 GEOEYE 1
NORAD 33331 		LANDSAT 7
NORAD 25682 		3.761 8.97 2.6e-07
2026-10-15 15:14:04 FOX-1A (AO-85)
NORAD 40967 		LANDSAT 7
NORAD 25682 		2.512 5.07 6.6e-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