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LEO should be >= 80 mins so 5 hubble orbits should be >= 400 mins / 6.6 hrs? EDIT: nasa.gov says 95 mins, so ~8 hrs.
by lamontcg 4y ago
LEO should be >= 80 mins so 5 hubble orbits should be >= 400 mins / 6.6 hrs?
EDIT: nasa.gov says 95 mins, so ~8 hrs.
- perihelions 4y agoYes, but Earth obstructs the field of view for about half that time. The way HST refers to an "orbit" for scheduling, only part of the elapsed time is usable observational time, for a single target. https://hst-docs.stsci.edu/hsp/the-hubble-space-telescope-primer-for-cycle-30/hst-primer-orbit-calculation-overview https://hst-docs.stsci.edu/hsp/the-hubble-space-telescope-pr... - "HST GO observing time is counted in terms of orbits. Each 96-minute orbit contains a certain amount of useful time when the target can be observed, called the orbital visibility period..."
- lamontcg 4y agoAh right, because it is basically in LEO so the Earth is enormous.