Bright star, good altitude. Not on my feed for some reason.
Alt = 39 in the east
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I did get set up and got a positive. Bernard got it too, at 0.8s duration. I set up from home outside the carport. My data looks much noisier than Kirk Bender's. Given the bright star, I decided to use 1x setting, but the target ended up being rather faint against the bright sky field to field. Read-out noise may have also been worse, then, than Kirk's data, which was at 4x. I had many more data points in the occultation, but worse accuracies in the timings. My depth was a little less than Kirk's 75% light loss, at 62% light loss. I tried runs with 2.4px and 3.2px masks, both were about the same in noise. I may have had more low fog and humidity affecting my data, worsening during the event. However, our data looks mutually self-consistent.
magDrop report: percentDrop: 62.3 magDrop: 1.060 +/- 0.418 (0.95 ci)
DNR: 1.16
D time: [07:45:46.0008]
D: 0.6800 containment intervals: {+/- 0.0357} seconds
D: 0.9500 containment intervals: {+/- 0.1302} seconds
D: 0.9973 containment intervals: {+/- 0.3008} seconds
R time: [07:45:46.6208]
R: 0.6800 containment intervals: {+/- 0.0357} seconds
R: 0.9500 containment intervals: {+/- 0.1302} seconds
R: 0.9973 containment intervals: {+/- 0.3008} seconds
Duration (R - D): 0.6200 seconds
Duration: 0.6800 containment intervals: {+/- 0.0544} seconds
Duration: 0.9500 containment intervals: {+/- 0.1565} seconds
Duration: 0.9973 containment intervals: {+/- 0.3293} seconds
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I got a 0.4064s event for 2001 DS21, Oct 14 from home, at 4x. There was a satellite going through the frame starting at about 7:46:15 UT, and passing very close to the target, so I used aperture size 21 to make sure it wouldn't contribute to the background. My view is rotated 180 degrees from horizon because I accidentally put the camera in upside down. At the time I could not identify the field, but I recorded anyway and fortunately I got the target in frame.
The bottom of the event doesn't look very flat, although the event was only 6 points so it could just be noise. Also it was predicted to be a 8.5 mag drop, but although the drop is deep, it doesn't reach no-star level and PyOTE reports a mag drop of only 1.540. The Occult map says the star diameter is less than 0.1mas. So it will be interesting to see if either of you got something similar. Also notable that the rank was only 61, but we all got positives.
magDrop report: percentDrop: 75.8 magDrop: 1.540 +/- 0.258 (0.95 ci)
DNR: 5.96
D time: [07:45:46.1661]
D: 0.6800 containment intervals: {+/- 0.0089} seconds
D: 0.9500 containment intervals: {+/- 0.0211} seconds
D: 0.9973 containment intervals: {+/- 0.0408} seconds
R time: [07:45:46.5725]
R: 0.6800 containment intervals: {+/- 0.0089} seconds
R: 0.9500 containment intervals: {+/- 0.0211} seconds
R: 0.9973 containment intervals: {+/- 0.0408} seconds
Duration (R - D): 0.4064 seconds
Duration: 0.6800 containment intervals: {+/- 0.0132} seconds
Duration: 0.9500 containment intervals: {+/- 0.0286} seconds
Duration: 0.9973 containment intervals: {+/- 0.0518} seconds
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