In article ,
Hop David wrote:
The moon could be anywhere from 0 to 14 degrees from the earth so it
seems to me the craft might see lunar ecclipses on very rare occasions.

More precisely, solar eclipses by the Moon. Yes, this is something
satellite planners have to be aware of. JWST will be too far away for
this to be a big issue, but closer to home it can be quite significant.

(The worst case of such things is a lunar orbiter during a total lunar
eclipse, when the Moon is in the Earth's shadow for *hours*.)
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MOST launched 1015 EDT 30 June, separated 1046, | Henry Spencer
first ground-station pass 1651, all nominal! |