Zarya - Soviet, Russian and International Spaceflight
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Tyneside, UK
2016 Jun 28
Tuesday, Day 180

Maintained by:


Satellite Predictions:

Providing Space Information Since 1999 is a hobbyist website managed from the South Tyneside area of the UK. Here you will find things that interest me..... current space events, the Soviet/Russian space programme, satellite tracking. You will also find frequency lists. They are spin-offs from my satellite tracking activities with which they go hand-in-hand. For some more about the site and its roots, look here.

What's Going Up?

imageZarya's Calendar of upcoming events is more than a list of planned launches - see what's planned overhead, and follow the links to background information and webcasts of launches and landings.

In case you missed something, there is also a listing of events going back one month.

If you appreciate or value the information available from, particularly as a space professional or commercial organisation, you might consider a donation towards its setup and running costs.

What's In Orbit?

imageSee Zarya's launch lists for satellite descriptions, launch records, detailed orbits and histories of orbital manoeuvres. Entries appear within hours of launches happening and orbit details are updated with similar timeliness. Information is derived from data provided by SpaceTrack and from independent tracking undertaken by amateur satellite observers.

There are also detailed lists of satellites in specialised orbits. In Geosynchronous orbit satellites are mainly communications satellites and Earth observation vehicles watching a whole hemisphere at a time. Sun-synchronous orbits follow a track across the Earth's surface at the same time each day. They are principally imaging satellites taking advantage of the constant lighting conditions from day to day.

What's Coming Down?

imageNatural decay of an orbit brings it closer to the upper atmosphere and air drag. Eventually, the drag will prove too much and it will enter the atmosphere. Re-entries can produce spectacular fireballs. Larger objects coming back into the Earth's atmosphere do not always burn up completely so there is a possibility of fragment hitting the ground.

Sometimes re-entries are brought about deliberately by retro-fire slowing the vehicle down. Occasionally the objective is to ensure that any surviving fragments land in remote areas of the Ocean but sometimes the objective is to make a landing.

Tables show recent re-entries as well as predictions of forthcoming events. Information comes from SpaceTrack and is updated as new data comes in.

Social Media

Twitter has both a Twitter feed and a Facebook page. They run in parallel and carry similar up to date notes on what's happening and timely reminders of events such as launches and dockings.

It is not necessary to subscribe to both and if you don't have an account, the most recent Twitter comments are displayed in page on

2016 - A Notable Anniversary

imageIn the 1960s, a small group of teachers and schoolboys were using basic radio equipment to eavesdrop on Soviet/Russian satellites. They came to prominence in 1966 when they deduced that the Soviet Union had made its first space launch from a new cosmodrome. 2016 marks the 50th anniversary of the event that catapulted the group into the international limelight.

Talks and Lectures

imageIf some of the material on the website interests you enough, and you represent a local astronomy society, club or any other group in the UK, or even in Europe if a low-cost flight is available, then a talk or lecture can probably be arranged.

Use the 'mail' icon towards the upper right of the page if you are interested.

Copyright © Robert Christy, all rights reserved
Reproduction in whole or in part without permission is prohibited