A 23.68 second occultation was recorded by John Broughton, using Video OSD technique.
Two clearly observed misses were recorded for this event.
View the TT14 prediction.
Observers: 1 J Broughton,Pottsville, NSW, AU 2(M) J Broughton,Reedy Creek, QLD, AU 3(M) J Bradshaw,Samford Valley,QLD,AU 4(P) Prediction TT14 25 Feb
The ellipse above is plotted at the maximum axis ratio as determined by lightcurve inversion data and with the same area as a 127km circle as expected by latest predictions. With one chord and constraining Misses we can be confident that John was west of the central line of the event. Unfortunately there are not yet any Damit/ISAM/Miriade shape models that might give a better view of this object.
The figure below shows the Tangra light curve of the occultation.
Observation details for MP ( 78 ) Diana By Star UCAC2 18205585 On 2012-03-29 at 13:02:48.0 _______________________________ 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 0.33 Timing GPS - time inserted Video with frame analysis Missed Comments: _______________________________ Observer John Broughton Location Pottsville, NSW, AU Longitude +153:33 Latitude -28:23 Altitude 7 m Datum WGS84 Telescope Newtonian Aperture 32 cm Seeing Steady Clear Camera Type WAT120N PAL/CCIR Camera Delay 0.33 Timing GPS - other linking Video with frame analysis Disappearance 13:02:47.72 Reappearance 13:03:11.40 Comments: _______________________________ Observer Jonathan Bradshaw Location Samford Valley,QLD,AU Longitude +152:50 Latitude -27:22 Altitude 80 m Datum WGS84 Telescope Newtonian Aperture 36 cm Seeing Steady Clear Camera Type G-Star PAL/CCIR Camera Delay 0.02 Timing GPS - time inserted Video with frame analysis Missed Comments: