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A possible 1 second occultation was recorded by Patrick Purcell, using Visual Observation.
View the updated prediction.
Observers: 1 P Purcell,Chapaman, ACT AU 2(M) H Pavlov,Marsfield, NSW, AU 3(M) D Gault,AstroRock, NSW, AU 4(M) A Brakel,Downer,ACT,AU 5(M) Z Novack, Theodore, ACT AU 6(P) Predicttion 3 Sept
Discussion:
The circle above is plotted at the expected 26 km diameter of Piaf at the predicted position. The time reported is well within the 1 sigma zone but with only one chord of short duration and two close by negatives on either side of Patrick's location it seems unlikely that this is a real positive.
Observational Data:
Observation details for MP (3772) Piaf By Star TYC 6919-01491-1 On 2007-10-05 at 09:36:26.0 _______________________________ Observer Patrick Purcell Location Chapaman, ACT AU Longitude +149:02:35.1 Latitude -35:21:30.1 Altitude 650 m Datum WGS84 Telelscope Newtonian Apperture 40 cm Seeing Steady Clear Timing Tape Recorder + time signal Visual, no PE applied Disappearance 09:36:04.30 Reappearance 09:36:05.30 Comments: I attempted to observe the Piaf event this evening. I had difficulty locating the star initially because of twilight and then cloud about 25 minutes prior to the event. This cleared and I managed to locate the field. The star seemed to be a component of a close double and the event was a ‘blink’ of possibly 1 sec duration but may possibly have been due to atmospherics although the star was visible continuously up to that point but Dave Herald advised me to report the time anyway. [It is always worth reporting all observations - jt] _______________________________ Observer Hristo Pavlov Location Marsfield, NSW, AU Longitude +151:06:10.9 Latitude -33:46:13.9 Altitude 108 m Datum WGS84 Telelscope SCT including Cass and Mak Apperture 20 cm Seeing Steady Clear Timing GPS - time inserted Video with frame analysis Missed Comments: _______________________________ Observer Dave Gault Location AstroRock, NSW, AU Longitude +150:29:10.1 Latitude -33:45:2.1 Altitude 602 m Datum WGS84 Telelscope SCT including Cass and Mak Apperture 20 cm Seeing Steady Clear Timing GPS - time inserted Video with frame analysis Missed Comments: _______________________________ Observer Albert Brakel Location Downer, ACT, AU Longitude +149:08:18. Latitude -35:14:27. Altitude 575 m Datum WGS84 Telelscope SCT including Cass and Mak Apperture 20 cm Seeing Steady Clear Timing Tape Recorder + time signal Visual, no PE applied Missed Comments: _______________________________ Observer Zak Novak Location THEODORE, ACT,AU Longitude +149:07:27.8 Latitude -35:26:44.3 Altitude 650 m Datum WGS84 Telelscope Newtonian Apperture 25 cm Seeing Slight flickering Thin cloud < 2 Timing Stopwatch Visual, PE applied Missed Comments: I saw lots of turbulence with the three stars in a row all fluctuating in brightness but I would say no event on the star in question.