Clem sees a Lunar Transient Phenomenon

So, there was Clem, cruising along over the farside, over a crater called Kowalski, at an altitude of about 2900 Km, snapping shots of the horizon. It was looking at the corona, like it did a lot.

No big deal, just another orbit over the moon.

Then a spot appeared on the horizon.

Like someone had turned the lights on in a city.

Clem had found another mystery.

This is an image from the B startracker, from orbit 193. It is image LBA5904z.193 for those of you that have the CD set or want to try to get it from the NASA server. This is the full Clem image unenhanced ,except it has been mirrored, to give the impression that we are on the farside. Because we are on the farside. Earth is on the other side of the moon to the left, we are looking west, toward the sun, while moving south in orbit.

SUB_SPACECRAFT_LATITUDE = -20.20 deg

SUB_SPACECRAFT_LONGITUDE = 111.73 deg

SPACECRAFT_ALTITUDE = 2896.0 Km

Venus is the bright disk at the top and the faint line you see is a camera artifact due to the technology used in the startracker. The following image also confirms this is not a temporary flash of light.

This is the image, next in the sequence, "raw" from Clem, for the folks that want their images that way. LBA5905z.193. It was taken 1 second later.

SUB_SPACECRAFT_LATITUDE = -20.40 deg

SUB_SPACECRAFT_LONGITUDE = 111.73 deg

SPACECRAFT_ALTITUDE = 2897.4 Km

Here is the LTP from the top image at 5X magnification. For Clementine, this is about as good as it gets. The 2 pixel wide bright spot would seem to indicate a broad lit area or a very bright small spot being spread  vertically by the startracker camera.

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