A 2.08 second occultation was recorded by Dennis Lowe, using video OSD technique.
View the updated prediction.
Observers: 1 D Lowe,Brisbane, QLD,AU 2(M) J Broughton,Reedy Creek, QLD, AU 3(P) Prediction, 22 May
The circle above is plotted at the expected 15 km diameter of Dalera. With only one chord it is not possible to determine whether Dennis was north or south of the central line of the event. However, assuming the updated prediction was approximately correct the longer than expected chord of about 21 km would suggest that the chord might lie close to the central portion of the asteroid.
The figure below shows the Limovie/Tangra light curve of the occultation.
Observation details for MP ( 1511 ) Dalera By Star TYC 6842-01867-1 On 2012-06-15 at 15:01:00.0 _______________________________ Observer Dennis Lowe Location Brisbane, QLD,AU Longitude +153:06 Latitude -27:30 Altitude 39 m Datum WGS84 Telescope Refractor Aperture 10 cm Seeing Slight flickering Clear Camera Type WAT120N+ PAL/CCIR Camera Delay 0.07 Timing GPS - time inserted Video with frame analysis Disappearance 15:01:45.31 Reappearance 15:01:47.39 Comments: _______________________________ Observer John Broughton Location Reedy Creek, QLD, AU Longitude +153:23 Latitude -28:06 Altitude 66 m Datum WGS84 Telescope SCT including Cass and Mak Aperture 25 cm Seeing Steady Clear Camera Type WAT120N PAL/CCIR Camera Delay 0.03 Timing GPS - time inserted Video with frame analysis Missed Comments: