Found Chang'e 5 today at (RA,DEC) = (0.95deg, 0deg) offset from the Moon with one of ATA's 6.1m dishes.pic.twitter.com/arG8UFCnRP
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It seems that the interesting carrier to watch now is the 3rd frequency. I've already needed to change tuning twice to avoid the sidebands from going out. The first jump is mine, then second is ground-lock, the third jump is mine.pic.twitter.com/joSH2uRyYf
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And there we have it! The circularization burn seems to have started a few minutes ago.pic.twitter.com/6upJXRHA3r
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And end of the observation. The Moon has set at Allen Telescope Array. This is the whole session as seen on a free-running carrier. The two frequency jumps are mine. The start of the burn was at 12:39:22 UTC.pic.twitter.com/YLvLXJfI6Z
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After more analysis of the data, it turns out that the "kink" we saw quite clearly in the Doppler curve was the end of the burn. The "kink" at the beginning of the burn was masked by the larger slope, but it can be revealed by fitting and subtracting a degree 3 polynomial...pic.twitter.com/uQPlmAt2u2
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This also explains why the "kink" we saw was downwards instead of upwards as expected for a retrograde burn in an "outwards-going" periapsis. I already noted this inconsistency and was a bit puzzled by it.
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