This is a quite do-able event, at a terrible time of night. But my classes don't begin tomorrow till afternoon, so I will plan to get out and do this one. The duration is a long 2.0 seconds, and the altitude is a convenient 55 degrees (Az=297) in the NW. I may have to set up down the driveway a bit. It's a high rank event. Northern limit through Scotts Valley and Aptos, Karl looks to be too far north for much chance. Kirk and I are near the centerline from home
The target star is W=13.2, the asteroid is G=14.2.BUT.... There is a slightly fainter star just 5" away from the target and it will likely be unavoidable during PyMovie reductions. It's G magnitude is listed at 14.0 and while the R magnitude isn't listed, the IR magnitudes indicate it's of similar color as the target star. So, my calc's say the image will fade in G from 12.74 to 13.34 for 2s. That should be do-able, a 0.6 drop, and it should look brighter in W.
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I observed from my driveway under clear skies, no wind, but moon and the usual surrounding lights. Used the dew shield for the lights. I observed at 8x, Gamma=1 to try and maximize the shallow drop in my data. Difficult, and data is noisy, but the occultation is quite clear. I got a 2.4 s event of the expected depth. However, the D looks very gradual. And the stars are out of focus. I therefore used TME apertures, and also because of the close neighbor issue. I used TME apertures for the ref stars as well. The event passes the FP test easily, but I'm thinking the time of the D may be poorly determined, just from the look of it. It will be interesting to see Kirk's light curve.
magDrop report: percentDrop: 44.2 magDrop: 0.634 +/- 0.095 (0.95 ci)
DNR: 2.59
D time: [11:33:41.3323]
D: 0.6800 containment intervals: {+/- 0.0563} seconds
D: 0.9500 containment intervals: {+/- 0.1685} seconds
D: 0.9973 containment intervals: {+/- 0.4530} seconds
R time: [11:33:43.7323]
R: 0.6800 containment intervals: {+/- 0.0563} seconds
R: 0.9500 containment intervals: {+/- 0.1685} seconds
R: 0.9973 containment intervals: {+/- 0.4530} seconds
Duration (R - D): 2.4000 seconds
Duration: 0.6800 containment intervals: {+/- 0.0855} seconds
Duration: 0.9500 containment intervals: {+/- 0.2158} seconds
Duration: 0.9973 containment intervals: {+/- 0.4979} seconds
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I got a 2.4s event for Luda from home, 8x. I used TME apertures in PyMovie. You were interested in my results because your D looked gradual, mine doesn't look quite like yours, but my event is noisy.
magDrop report: percentDrop: 37.4 magDrop: 0.509 +/- 0.134 (0.95 ci)
DNR: 2.20
D time: [11:33:41.2728]
D: 0.6800 containment intervals: {+/- 0.0807} seconds
D: 0.9500 containment intervals: {+/- 0.3028} seconds
D: 0.9973 containment intervals: {+/- 0.7937} seconds
R time: [11:33:43.6751]
R: 0.6800 containment intervals: {+/- 0.0807} seconds
R: 0.9500 containment intervals: {+/- 0.3028} seconds
R: 0.9973 containment intervals: {+/- 0.7937} seconds
Duration (R - D): 2.4023 seconds
Duration: 0.6800 containment intervals: {+/- 0.1389} seconds
Duration: 0.9500 containment intervals: {+/- 0.4299} seconds
Duration: 0.9973 containment intervals: {+/- 0.9599} seconds