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A 4.48 second occultation was recorded by Andrew Walker, using video OSD technique.
Two clearly observed misses were recorded for this event.
View the updated prediction.
Observers: 1 A Walker,Tauranga / New Zealand 2(M) D Watson,Thornton near Whakatane, NZ 3(M) B Loader,Darfield,NZ 4(P) Prediction, IOTA, July 29
Discussion:
The circle above is plotted at the expected 67 km diameter of Merope. With only one chord it is not possible to determine whether Andrew was north or south of the central line of the event.
The figure below shows the Limovie/Tangra light curve of the occultation.
Observational Data:
Observation details for MP ( 1051 ) Merope By Star UCAC2 34715681 On 2011-08-07 at 09:26:04.0 _______________________________ Observer B. Loader Location Darfield,NZ Longitude +172:06 Latitude -43:28 Altitude 210 m Datum WGS84 Telescope SCT including Cass and Mak Aperture 25 cm Seeing Steady Clear Camera Type WAT120N PAL/CCIR Camera Delay 0.33 Timing GPS - time inserted Video with frame analysis Missed Comments: Report prepopulated by IOTA Reporting Add-in for OW ver.1.6 _______________________________ Observer Andrew Walker Location Tauranga / New Zealand Longitude +176:09 Latitude -37:42 Altitude 11 m Datum WGS84 Telescope Newtonian Aperture 30 cm Seeing Strong flickering Clear Camera Type Camera Delay Timing GPS - time inserted Video, photo or photoelectric Disappearance 09:25:16.13 Reappearance 09:25:20.61 Comments: Magnification unknown, 12 inch f5 using the WATEC 120N camera. _______________________________ Observer Diana Watson Location Thornton near Whakatane, NZ Longitude +176:51 Latitude -37:55 Altitude 3 m Datum Other Telescope SCT including Cass and Mak Aperture 200 cm Seeing Slight flickering Clear Camera Type Camera Delay Timing Tape Recorder + time signal Visual, no PE applied Missed Comments: Bright moonlight. Target star very faint, difficult to monitor, but certain no drop in magnitude.