Indicates the amount in kilometers existing between the observer and the satellite.
Chinese satellite reentry trajectory.
China s space program remains highly secretive and some experts have complained that a lack of information about tiangong 1 s design made it harder to predict what might happen upon its re entry.
Azimuth and elevation are the local coordinates and they inform the position on the sky where the observer should look to see the satellite or to point out his antenna.
An artist s illustration of china s tiangong 1 space station falling to earth as it burns up in the atmosphere.
The 19 6 ton 17 800 kilogram body of chinese rocket slammed into the planet s atmosphere today may 11.
Some fragments could survive the fiery reentry but experts say the risk to humans on the ground is small.
Military tracking unguided re entry of large chinese rocket may 9 2020 stephen clark if you would like to see more articles like this please support our coverage of the space program by.
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Altitude is the.
As the re entry time approaches the range of re entry times will narrow.
It was the biggest such incident since 1991.
Period is the time that the satellite takes to complete an orbit around the earth counted from perigee to perigee.
The china national space administration indicated that the 18 meter wide station and solar panels will mostly burn up during reentry but that a small amount of debris may fall in a safe area.