A 4.6 second occultation was recorded by Chris Chad, using video OSD technique.
[xx] clearly observed misses were recorded for this event.
View the updated prediction.
Observers: 1 C Chad,Gunnedah, NSW,AU 2(P) Prediction, 24 January
The circle above is plotted at the expected 80 km diameter of Alphonsina. With only one chord it is not possible to determine whether Chris was north or south of the central line of the event, so the circle has been plotted on the predicted path.
The figure below shows the Tangra light curve of the occultation.
Observation details for MP ( 925 ) Alphonsina By Star UCAC2 42902792 On 2013-01-31 at 10:25:20.0 _______________________________ Observer Chris Chad Location Gunnedah, NSW,AU Longitude +150:15 Latitude -30:59 Altitude 315 m Datum WGS84 Telescope Newtonian Aperture 25 cm Seeing Slight flickering Clear Camera Type Samsung SCB-2000 NTSC/EIA Camera Delay 0 Timing GPS - time inserted Video with frame analysis Disappearance 10:25:37.46 Reappearance 10:25:42.07 Comments: I attempted to deploy a second station but ran out of time.