But observing objects in cislunar space from the Earth is not easy. First, the Moon is a quarter-million miles away, so spacecraft or debris will appear vanishingly faint to sensors near the Earth. The Moon and the Sun far outshine these objects. Second, using a satellite stationed near the Moon to obtain a fix and vector for an object requires precise navigation, a capability not readily available without reliable GPS signals.
If anyone knows exactly where a satellite is around the Moon today, it is due to the generosity of its operator. If they choose to, spacecraft owners can provide detailed ephemeris data, revealing their location and movement, but
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