Questions tagged [backup]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
10
votes
1answer
659 views

How would the state vector be updated in the Apollo Guidance Computer during coasting to/from the moon if communication with Earth was lost entirely?

This source https://www.hq.nasa.gov/alsj/alsj-average_g.html states that: From time to time, Houston could update the onboard SV using tracking and other available date; [sic] but, generally, it ...
4
votes
1answer
202 views

How expensive is a prepared launch in reserve, compared to an actual launch?

If a human space mission or even a very valuable space telescope, gets into trouble, an extra launch from Earth might save the mission. But launchers today have to be prepared for months in advance. ...
7
votes
1answer
179 views

What are the mission control backup options on a satellite/space-craft?

So I'm going through Brian Harvey's "Rebirth of the Russian Space Program". At one point the book mentions the Russian Satellite control centre at Serphukov-15 was totalled by fire. The consequence ...