2023 July

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Revision as of 00:19, 22 July 2023 by Dgary (talk | contribs) (→‎July 16)
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July 16

23:00 UT In the afternoon all of the Laird temperature controllers stopped regulating, allowing the FEMs to reach >40 C. This was likely heat-related due to unusually high ambient temperatures. Things were back to normal by the next day.

July 22

00:10 UT The new feed + radome was installed on Ant 11 and the control files were changed to add Ant 11 tracking. The pointing measurement at 21:30 UT shows that Ant 11 is not pointing well in HA, so this needs to be updated. I will take more measurements tomorrow and adjust the pointing. The phase calibration at 23:14 UT showed coherence at low frequencies on Ant 11, so I was able to adjust the delay (about 3 ns) to optimize that. We have a weekend coming up, so we won't be able to explore focus adjustments, but I will do a series of observational tests with this current focus over the weekend.