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Questions about Earth's Moon. Also for questions about spacecraft, manned missions, potential missions, etc. related to Earth's Moon.

5 votes

Historical Moon’s True Anomaly Numbers

The JPL Horizons System website can generate orbital elements which include the true anomaly. You will need to know the dates and times that you want. If that is not available from Horizons (I did not …
JohnHoltz's user avatar
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13 votes

Exit film of moon landing departure

It depends on which "film" and mission you are referring to. (The original question referred to "the first moon landing". Later edits refer to the last 3 landings.) For the first moon landing, Apoll …
JohnHoltz's user avatar
  • 1,233
1 vote

Duplicated and Distorted Fiducials

Here is a higher resolution image of AS14-66-9306 and a collage of the four fiducial crosses closest to the sun glint. These factors point to (no pun intended) a reflection of the crosses within the c …
JohnHoltz's user avatar
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8 votes

How often does a geostationary satellite enter into a Lunar shadow?

You can get an approximate answer by looking at how often a solar eclipse crosses the equator. This map for the years 2021 through 2040 implies that satellites around 30 W longitude will experience a …
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