A 7.3 second occultation was recorded by Brian Loader, using video OSD technique.
View the updated prediction.
Observers: 1 B Loader,Darfield 2(P) Prediction, 13 June
The ellipse above is plotted at the size to just fit the observation on the major axis and the minor axis is set to give the area as the expected circle of 70 km. This give an axis ratio of 1.41 compared to an estimate of 1.2 suggested by light curve data. With only one chord it is not possible to determine whether Brian 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 83 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 ( 333 ) Badenia By Star UCAC2 21205159 On 2013-07-03 at 15:41:24.0 _______________________________ Observer B. Loader Location Darfield Longitude +172:06 Latitude -43:28 Altitude 210 m Datum WGS84 Telescope SCT including Cass and Mak Aperture 25 cm Seeing Steady Thin cloud < 2 Camera Type WAT120N+ PAL/CCIR Camera Delay 0.11 Timing GPS - time inserted Video with frame analysis Disappearance 15:41:28.63 Reappearance 15:41:35.92 Comments: Some variable thin cloud, more noticable in latter part of obs. The S/N figure is mean of before and after event. Individual S/N figures are: Before event 8.8, after event 6.0. Report prepopulated by IOTA Reporting Add-in for OW ver.1.7