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Questions tagged [molniya]

questions about the Molniya series of Soviet military communication satellites.

5
votes
2answers
99 views

What are the advantages of a Molniya orbit over a tundra orbit?

As I understand them, Molniya orbits and tundra orbits are very similar: they are both intended to provide satellite coverage over large latitudes and provide a large apogee dwell time over the large ...
5
votes
2answers
920 views

Difference between Tundra and Molniya orbits?

This excellent answer nicely describes both Tundra orbits and Molniya orbits. They are both repeat groundtrack orbits with periods of rational fractions of a sidereal day, and both have inclinations ...
6
votes
1answer
315 views

Why should Molniya orbit period be a half-synodic, not a half-sidereal day?

In the Wikipedia article for Molniya orbit the introduction mentions that the period should be 0.5 sidereal day, so that its path across the sky every ~12 hours as observed from a given point on Earth ...
4
votes
2answers
362 views

What is the large structure in the background of this picture of Molniya 1?

This answer links to an Wikipedia article on the Molniya satellites, which shows the image below of Molniya 1, and what looks like a large structure behind it. The structure appears to be long and ...