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Impact Candidates Reported to the MEO by Independent Observers

(last updated 2/1/2021)
Lunar impact candidates residing in the list below were not confirmed by the NASA Meteoroid Environment Office at MSFC but meet one of the following criteria:

1.  The flash was confirmed by two or more independent observers.  The flash lasts any number of fields, is any brightness, and exhibits a decreasing light curve. There is no indication of flash movement.
2.  The flash lasts 3 or more fields (interlaced) or frames (progressive scan) and exhibits a decreasing light curve. The flash is obvious in all fields/frames and there is no indication of flash movement.
3.  The flash lasts 2 fields/frames.  The flash is easily identifiable (bright) in the second field/frame and there is no indication of flash movement.

Flashes only 1 field/frame in duration, unless confirmed in more than one telescope, are classified as cosmic rays.  Flash movement, from field to field, indicates a satellite in the field of view.  Decreasing light curves are indicative of the type of impact physics expected when meteoroids strike the moon.

Impact Candidates Reported to the MEO by Independent Observers (last updated 2/1/2021).
Impact Candidates Reported to the MEO by Independent Observers (last updated 2/1/2021). Credits: NASA

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Detailed info about all Independently Observed Impact Candidates (PDF, <500 KB)