This event is just 14 minutes after 1999XD80, try from same site. High in sky in Auriga. Because of the short break, I'm assuming you'll be swinging straight over with the Watec still attached and so no eyepiece view is necessary. I've instead provided a wider view of the Watec chip field.
Alt=57, Az=82 in Auriga
|
|
I observed from the cul-de-sac of Pineridge Rd in Bonny Doon, at 4x. This event done during my pre-discovery days of how to optimize the recording level and contrast controls. Instead I'm using too much brightness level and too high a contrast, adding too much sky and background noise to the data. Still, the occultation is obvious.
magDrop report: percentDrop: 98.2 magDrop: 4.339 too much noise; cannot calculate error bars
DNR: 2.75
D time: [06:54:38.0891]
D: 0.6800 containment intervals: {+/- 0.0205} seconds
D: 0.9500 containment intervals: {+/- 0.0553} seconds
D: 0.9973 containment intervals: {+/- 0.1237} seconds
R time: [06:54:38.5027]
R: 0.6800 containment intervals: {+/- 0.0205} seconds
R: 0.9500 containment intervals: {+/- 0.0553} seconds
R: 0.9973 containment intervals: {+/- 0.1237} seconds
Duration (R - D): 0.4136 seconds
Duration: 0.6800 containment intervals: {+/- 0.0293} seconds
Duration: 0.9500 containment intervals: {+/- 0.0701} seconds
Duration: 0.9973 containment intervals: {+/- 0.1445} seconds
 |
 |
 |
 |
 |
 |
Looks like I got an event for Fichtelman. I tried Fichtelman 16 minutes after 1999 XD, at the same spot, the berm. The 1999 XD recording was garbled and useless probably due to moisture from the fog on 17 for Mitaka that night. For Fichtelman the recording is not garbled but I mistakenly started recording at the predicted event time instead of a minute earlier. But it looks like I got an event right at the start of the recording, with the first reading at 06:54:38.1542, dropping much lower than the rest of the recording. The sky looked clear but at 4x I thought the target was too noisy so I recorded at 8x. Later I could see with a long exposure camera shot that there were high thin clouds. At 8x, the points are in groups of four in pymovie plots and in the csv file. However, the first group has only 3 points, i.e. I started with an integration underway. If I do a block integration in pyote, it does a block size 4 but it offsets by 3, it truncates the first 3 points and it cuts off the beginning of the drop. If I then try to find an event, it says "No event fitting search criteria could be found." So I added a point, a row in the csv file at the beginning, with the target signal an average of the first 3 points and a timestamp of the first time minus the delta of the first and the second. Then if I do a block integration it gets 4 points at the beginning and doesn't truncate the top of the drop. It then finds a 0.4004 sec event with a NIE sigma of 2.0, near predicted duration and predicted time. See what you think, and if I'm justified adding a point at the beginning so it block integrates properly.
magDrop report: percentDrop: 56.6 magDrop: 0.906 +/- 0.623 (0.95 ci)
DNR: 2.78
D time: [06:54:38.2543]
D: 0.6800 containment intervals: {+/- 0.0552} seconds
D: 0.9500 containment intervals: {+/- 0.1543} seconds
D: 0.9973 containment intervals: {+/- 0.4062} seconds
R time: [06:54:38.6547]
R: 0.6800 containment intervals: {+/- 0.0552} seconds
R: 0.9500 containment intervals: {+/- 0.1543} seconds
R: 0.9973 containment intervals: {+/- 0.4062} seconds
Duration (R - D): 0.4004 seconds
Duration: 0.6800 containment intervals: {+/- 0.0877} seconds
Duration: 0.9500 containment intervals: {+/- 0.2276} seconds
Duration: 0.9973 containment intervals: {+/- 0.5026} seconds
 |
 |
 |
 |
 |
 |
 |