This event has a wide uncertainty path, but we're inside the 1-sigma limit. Odds are low, but value is high, and given good weather, should be do-able. The event lasts 4.2s and is 21 degrees up, at Az=due south. The moon will not be in the sky, and the sun is at -11 which should be low enough to permit decent integration and see the star. The drop is only 0.4 magnitude, though, so you NEED to see the star reasonably well to be able to detect that small drop. So go longer to get the star well. Having it just barely above detection may not be enough.
Alt=21, Az=189 is 60% of the way from Antares to the bright open star cluster M6 above the Tail of Scorpius.
The charts below are for the moment of the occultation, not 20min prior, as is typical for my OWdesktop events.
|
|
I had clear skies at Cabrillo College, and set up and recorded from the walkway next to room 806, with my Astro 3-2 students watching and following along. I got a successful recording, target was easy to see (Kalliope provided most of the light) at 4x on my recording, once the sun got below about -10. No clouds, seeing was good. Looks like a highly likely miss, but a very short duration shallow event can't be ruled out.
Recorded at 4x, good data quality. Sent in to IOTA on Oct 20, 2024.
 |
 |
 |
 |
 |
 |
 |
 |
 |
Highly likely a miss. That's what I report to IOTA |
I don't see a distinct event in the recording I made from home, 4x. Fog came in intermittently, and there was a large dip in all my apertures, but otherwise I got fairly consistent urves. I think I identified the target star ok, it is in the expected place compared to the C2A chart, but it appears there is a star to the upper left of the target on the C2A chart that is missing on my recording. Combined, the magnitude of star and asteroid was supposed to be 12.1 so it shouldn't have been faint. I don't think my target is the missing star and the actual target is invisible., but see my attached pymovie "finder" screenshot. If this is the target, I don't see a noticeable event in my light curve. I smoothed against a tracking star. The pyote detectability test says"An event of duration 1.950 seconds with magDrop: 0.3 is likely detectable." Max duration was 4.15 seconds. There was a lot of uncertainty in the prediction and we were close to the southern 1 sigma limit, so very likely a miss.
 |
 |
 |
 |
 |
Set up, but didn't start recording until 2 minutes after the event.
