A 4.96 second occultation was recorded by Brian Loader, using video OSD technique.
View the TT 14 prediction.
Observers: 1 B Loader,Darfield,NZ 2(P) Prediction, TT14 31-Dec
The circle above is plotted at the expected 85 km diameter of Riga. With only one chord it is not possible to determine whether Brian was north or south of the central line of the event. Brian was close to the 2 sigma line so this implies a significant shift to the north.
The figure below shows the Tangra light curve of the occultation.
Observation details for MP ( 1796 ) Riga By Star UCAC4 423-006094 On 2013-01-10 at 13:13:05.0 _______________________________ Observer B. Loader Location Darfield,NZ Longitude +172:06 Latitude -43:28 Altitude 210 m Datum WGS84 Telescope SCT including Cass and Mak Aperture 25 cm Seeing Strong flickering Clear Camera Type WAT120N PAL/CCIR Camera Delay 0.67 Timing GPS - time inserted Video with frame analysis Disappearance 13:13:11.52 Reappearance 13:13:16.48 Comments: Report prepopulated by IOTA Reporting Add-in for OW ver.1.7