News Item

GLONASS loses a satellite

A GLONASS satellite has been decommissioned because of a terminal malfunction.

The Russian Federal Space Agency announced on 22 October that it had stopped receiving signals from GLONASS 728 in July - and attempts to fix the malfunction had been unsuccessful. Hence the spacecraft has now been withdrawn from the constellation permanently.

The satellite was launched in 2008 and became operational in January 2009.

There are still 28 satellites in the constellation:
- 24 operational
- 3 spares (1 in each orbital plain)
- 1 under test

GLONASS requires 18 operational satellites for continuous navigation over Russian territory and 24 to provide global cover. So the system is still 'global'.

The Agency explains that, by 2020, it is planned to have 30 Glonass-M and new-generation -K satellites in orbit, including 6 in reserve.

Details from the links below.

  • 28 October 2013
  • Space

Contact Us

The Royal Institute of Navigation
1 Kensington Gore
London
SW7 2AT

+44 (0)20 7591 3134
admin@rin.org.uk

E-Mail Communication

The Royal Institute of Navigation periodically sends out email updates to its membership and those who have subscribed to events and conferences run by the RIN. In doing so, the RIN takes all reasonable precautions to ensure that the emails are only sent to those who have requested them, and that no third party can make unauthorised use of any @rin.org.uk email address to send out mailings.If you receive unsolicited mail from any @rin.org.uk address then please inform us at admin@rin.org.uk and we will take appropriate action.

Join the RIN

You can apply for any category of RIN membership by completing the online membership application form and paying using our secure credit/debit card payment system.

Join Now