NOAA 19
In orbit NORAD 33591 LSCG-5988-6402-6624-6585 United States of America
2009
Launch
20163
Observations all time
United States weather satellite
The satellite is in orbit
The network has not received data from this satellite for a long time
Credit: Credit: NOAA NESDIS Environmental Visualization Laboratory. Public domain source
1 33591U 09005A 26280.88408099 .00000003 00000-0 25264-4 0 9995
2 33591 98.9416 351.7790 0014714 73.2436 287.0350 14.13488180910401
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.
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.