1 perfectly round orbit around moon.
2. Detect orbit time by measuring time between probe leave's the shadow side of the moon.
3. Take continuus samples every time probe is at the sunniest side of the moon (orbit time/2 counted from darkest spot)
4 . Closest to sun
1413.20849609375, moons shadow side face earth
Farthest from sun
1371.85693359375, moons sunny side face earth.
As you can see it is a measurable differense.
Now you can count out where earth is in IOS who lacks lat/long.
You are welcome to proof falsify my findings

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Vizzy

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    Problem is we have no Vizzy code to set craft orientation by PCI coordination even in Experimental branch. In Experimental, we have Solar Position and Planet Position so it's far easier to get a vector facing the Sun and Earth. However I still haven't found a way to convert the vector based on craft's roll/pitch/yaw axis without a complex matrix operation.

    4.9 years ago
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    Future analysis shows that earth's orbit around sun in exentric. My guess is around 0.015. So it is not as fast and as magic a number as I first thought. The differense in solar radiation should be the same. But you then have to orbit +30 days to find the turning point of maximum radiation, to know your position. And +366 days to determine your position with maximum resolution.

    +1 4.9 years ago

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