TwitterFacebook

Site map

Site update log

About this site

About the author

Mailbox


SUPPORT THIS SITE!


ADVERTISE


Searching for details:

The author of this page will appreciate comments, corrections and imagery related to the subject. Please contact Anatoly Zak.

Related pages:

Resurs-DK imaging satellite


Persona

Persona


 

GLONASS-K2 satellite

The latest generation of the Russian satellite navigation network would be represented by the GLONASS-K2 satellite currently in active development.

GLONASS-K2

General architecture of the GLONASS-K2 satellite as of 2015. Credit: ISS Reshetnev

From the publisher: Pace of our development depends primarily on the level of support from our readers!

Donate

 

According to early plans, the first two GLONASS-K1 satellites would be followed by GLONASS-K2 satellites. A modified version known as GLONASS-K2, was expected to feature an unpressurized satellite bus and a new type of navigation signal with the so-called code-protected selection. The spacecraft would transmit three types of signals, two of which in L1 and L2 range would be designed for specialized users, such as the military and one channel in L1 range would be available to everyone else.

The spacecraft also uses a new-generation thermal control system based on electrically powered thermal panels complemented with optical thermal coating, which replaced traditional fluid-based systems. The new thermal control method, (first tested on GLONASS-K satellites), enables to maintain temperature of some critical avionics on the spacecraft within 0.1 degrees, ISS Reshetnev said.

Development

As of 2010, the launch of the first GLONASS-K2 spacecraft was expected in 2013. (438) In November 2012, ISS Reshetnev announced that the completion of the preliminary design for a modified GLONASS-K satellite had now been expected in October 2013.

Due to delays with the development of the GLONASS-K2, Roskosmos had to order a total of nine GLONASS-K satellites for a routine replacement of the GLONASS-M spacecraft.

In July 2016, ISS Reshetnev announced that the company had began testing the GLONASS-K2 satellite in the thermal and vacuum chamber, however the planned launch date for the satellite was not confirmed at the time.

(To be continued)

Book

 

Bookmark and Share


This page is maintained by Anatoly Zak

Last update: July 14, 2016

All rights reserved

Book

 

assembly

A photo of GLONASS-K2 satellite released in 2016 shows its testing in a GVU-600 temperature and vacuum chamber simulating conditions of space. Credit: ISS Reshetnev


antennas

Antennas onboard GLONASS-K2 satellite. Credit: ISS Reshetnev


Soyuz

The Soyuz-2.1b rocket with the first GLONASS-K satellite on the launch pad in Plesetsk in February 2011. Credit: Roskosmos