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GLOBAL-17

In orbit NORAD 49949 IHGF-1692-7196-9468-5017 United States of America

Observations 0
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2021

Launch

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Observations all time

Mission information
Spacecraft name
GLOBAL-17
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
2021-12-09 00:00:00
Separation time
Satellite appearance
Data for the last 30 days
Orbital parameters of the satellite
Perigee
381.85 km
Apogee
405.95 km
Inclination
42.0°
Period
92.4 min
Semi-major axis
6771.8 km
Velocity
7.66 km/s
Orbital elements
TLE source
Celestrak
TLE updated
2026-10-13 06:09:02 UTC
Two-line elements (TLE)
1 49949U 21120A   26285.79352185  .00037573  00000-0  47443-3 0  9994
2 49949  41.9928  65.2625 0017672 358.4112   1.6676 15.58660356273219
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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.