This is a short, narrow path event but with nominal high rank, but it goes only over the foothills of the SC Mtns, northern edge along Empire Grade Rd. Fog is coming in. Can we get above it? Not sure... Alt=22 Az=150. A spot on Smith Grade Rd near Bonny Doon Rd looks to be feasible, at 1247 ft elevation. Kirk's going to try from "the Berm" at higher elevation but just over the northern limit. Karl is outside the path by quite a bit.
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I was time crunched for this one... all my time the prior week was to prepare for my KSQD interview on the subject of "How Neoclassical Economics is Dragging us Towards Overshoot and Collapse". I didn't get home till 7pm from that interview and conferencing. I then rushed to make the finder charts and print them. Then had to decide how the fog was going to change my original plan to observe at the Upper UCSC bike path crossing. Fogged there, and so was Kirk's site at "the Berm". I kept driving but didn't want to go too far and get too far outside the predicted path. I ended up setting up at Roger and Charles streets in the Pineridge neighborhood of Bonny Doon just south of the fire station. Had a great southern horizon except for one tall skinny tree. I was late in getting there, I did a "GoTo" with 15 minutes till event time, and by horrible luck, the star was going to be behind that single tree at event time. I did the only thing I could do. I left everything as is, drove my car 50yd to a better spot, went back and bodily grabbed the scope and brought it to the newly placed car back, and started over. I actually did get it done on time, but the pointing accuracy was poor, and I did not get ID on the field, taped anyway, but not on target.
No data from me.
Kirk was more successful. The path was clearly late and also shifted north (good for both of us). Interesting that this asteroid was so much off course as shown by Kirk's strong positive on this bright star, despite the decently good rank. 2 diameters late, and a good half diamter north of prediction. I'd have had a positive, if I'd had enough time after my radio interview to get it all pulled together. Almost, but not quite.
For 1999 YM12 I got a clear 0.4671 sec event, 2x at Sunlit Lane. Longer than the predicted .35 sec, and later than predicted 4:41:13, although the prediction doesn't have fractional seconds.
magDrop report: percentDrop: 96.0 magDrop: 3.504 +/- 0.510 (0.95 ci)
DNR: 3.90
D time: [04:41:13.9412]
D: 0.6800 containment intervals: {+/- 0.0047} seconds
D: 0.9500 containment intervals: {+/- 0.0124} seconds
D: 0.9973 containment intervals: {+/- 0.0226} seconds
R time: [04:41:14.4084]
R: 0.6800 containment intervals: {+/- 0.0047} seconds
R: 0.9500 containment intervals: {+/- 0.0124} seconds
R: 0.9973 containment intervals: {+/- 0.0226} seconds
Duration (R - D): 0.4671 seconds
Duration: 0.6800 containment intervals: {+/- 0.0070} seconds
Duration: 0.9500 containment intervals: {+/- 0.0159} seconds
Duration: 0.9973 containment intervals: {+/- 0.0277} seconds
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