A 10.3 second occultation was recorded by Ashley Pennell, using Video OSD technique.
No clearly observed misses were recorded for this event. There were 3 other observers registered but they were all clouded out.
View the updated prediction.
Observers: 1 A ,Pennell, Dunedin NZ 2(P) Prediction,27 August
The ellipse above is plotted at the maximum axis ratio as determined by lightcurve inversion data. With only one chord it is not possible to determine whether Ashley 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 160km would suggest that the chord might lie close to the central portion of the asteroid. With no positive chords we cannot say where the actual path was, so the circle has been plotted on the predicted path.
The figure below shows the Limovie/Tangra light curve of the occultation.
As Ashley used a very long integration period the time resolution is rather long and hence the long error bars in the Plot above. This makes the Ellipse size quite uncertain as well. It might have been better to use one step faster integration to improve the time resolution at the expense of fainter stars.
Observation details for MP ( 426 ) Hippo By Star UCAC2 20252141 On 2014-09-27 at 11:40:36.0 _______________________________ Observer Ash Pennell Location Dunedin NZ Longitude +170:29 Latitude -45:52 Altitude 136 m Datum WGS84 Telescope SCT including Cass and Mak Aperture 35 cm Seeing Slight flickering Clear Camera Type WAT120N+ PAL/CCIR Camera Delay -0.67 Timing GPS - time inserted Video with frame analysis Disappearance 11:40:31.30 Reappearance 11:40:41.60 Comments: