This is a very short event. Only 0.2s long. But for a 10.4 mag star, 1x is quite feasible on a clear clean night like tonight. The rank is OK, and we'd set up near the centerline off of Lark Road in Los Gatos. If we do it... 31 deg altitude at Az=275 in Taurus just below Zeta Tauri and supernova M1.
|
|
|
I set up at the north end of the orchard on Oka St in Los Gatos as shown above. 31 ft north of the telephone pole. Dry, good conditions, but full moon and city lights, didn't bother for this bright star at 2x setting. Could see a clear blink at the predicted time. Will reduce it soon. Kirk and Karl did not attempt this one.
Richard Nolthenius
I have advice for doing bright target / short events. If you have the photons, and want to use field mode time resolution - then you must use 1/60s setting and also analyze in field mode in PyMovie. There's no point in analyzing in field mode for 2x settings since the 2x setting is a 1/25s integration covering both fields, and you're just splitting the same photo into even, and odd, line sets when looking at fields. To get the time resolution you must use 1/60s setting. Also you should defocus the star and use a larger aperture to minimize "sawtoothing" caused by the star being sliced by dark even or odd rows.
Here; Analyzed in frame mode, 4px static circular apertures. Now that I understand that 'reduce in field mode' is only useful if the setting is 1/60s, I've removed the second analysis done in field mode. It didn't differ significantly anyway.
magDrop report: percentDrop: 86.1 magDrop: 2.144 +/- 0.892 (0.95 ci)
DNR: 5.67
D time: [07:42:46.1675]
D: 0.6800 containment intervals: {+/- 0.0066} seconds
D: 0.9500 containment intervals: {+/- 0.0155} seconds
D: 0.9973 containment intervals: {+/- 0.0294} seconds
R time: [07:42:46.3275]
R: 0.6800 containment intervals: {+/- 0.0066} seconds
R: 0.9500 containment intervals: {+/- 0.0155} seconds
R: 0.9973 containment intervals: {+/- 0.0294} seconds
Duration (R - D): 0.1600 seconds
Duration: 0.6800 containment intervals: {+/- 0.0093} seconds
Duration: 0.9500 containment intervals: {+/- 0.0206} seconds
Duration: 0.9973 containment intervals: {+/- 0.0359} seconds
 |
 |
 |
 |
 |
 |
 |