This has a convenient path. Kirk, Karl, Bernard, and I are all inside this path. Not because it's a wide path, it just manages to catch all of us. Good chance to map this one. Rank is good. The challenge is the altitude and maybe a bit of sky brightness which will mean the need for efficient getting on-target in twilight.
Alt=25, Az=49 in Lynxx
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Kirk got a good recording. Karl did not attempt; bad angle and altitude from his area. Bernard did not observe.
I recorded this from the Holy Cross Church on Mission Hill for a good view to the NE. I recorded at 8x. Twilight was definitely an issue, and I had to struggle with brightness/contrast to try to get this. I wish I could have done 4x but the star at decision time was just too hard to see. I was parked in the middle of the parking lot on the east side of the middle lane of parking slots. The sky looked to be clear around the target and I didn't notice any modulation due to thin clouds.
I got a clear 3.9 sigma detection of a deep occultation at the predicted time. This despite having to go to 8x and so only 3 1/2 points were inside the occultation.
NIE sigma=3.9
magDrop report: percentDrop: 88.6 magDrop: 2.360 +/- 2.015 (0.95 ci)
DNR: 2.68
D time: [02:00:00.0872]
D: 0.6800 containment intervals: {+/- 0.0547} seconds
D: 0.9500 containment intervals: {+/- 0.1578} seconds
D: 0.9973 containment intervals: {+/- 0.3765} seconds
R time: [02:00:00.7272]
R: 0.6800 containment intervals: {+/- 0.0547} seconds
R: 0.9500 containment intervals: {+/- 0.1578} seconds
R: 0.9973 containment intervals: {+/- 0.3765} seconds
Duration (R - D): 0.6400 seconds
Duration: 0.6800 containment intervals: {+/- 0.0833} seconds
Duration: 0.9500 containment intervals: {+/- 0.2006} seconds
Duration: 0.9973 containment intervals: {+/- 0.4418} seconds
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I got a 0.6006 sec event for 1989 SC10, 4x at Westlake, close to predicted time and duration. Curve is noisy, but it was in twilight. A satellite passed through a tracking/reference star aperture, so there is a very bright point which skews the y-axis, but it is only one point well after the event time. I altered the y axis in pymovie for the composite plot, but I don't know how to do that in pyote, so I made additional pyote plots without the tracking star.
NIE sigma distance 4.4
magDrop report: percentDrop: 82.1 magDrop: 1.867 +/- 1.113 (0.95 ci)
DNR: 2.10
D time: [02:00:00.0739]
D: 0.6800 containment intervals: {+/- 0.0337} seconds
D: 0.9500 containment intervals: {+/- 0.1230} seconds
D: 0.9973 containment intervals: {+/- 0.2991} seconds
R time: [02:00:00.6745]
R: 0.6800 containment intervals: {+/- 0.0337} seconds
R: 0.9500 containment intervals: {+/- 0.1230} seconds
R: 0.9973 containment intervals: {+/- 0.2991} seconds
Duration (R - D): 0.6006 seconds
Duration: 0.6800 containment intervals: {+/- 0.0558} seconds
Duration: 0.9500 containment intervals: {+/- 0.1543} seconds
Duration: 0.9973 containment intervals: {+/- 0.3249} seconds
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