A 1.24 second occultation was recorded by Hristo Pavlov, using video OSD technique.
View the updated prediction.
Observers: 1 H Pavlov,Marsfield, NSW,AU 2(P) Prediction 28 Nov 09
The circle above is plotted at the expected 19 km diameter of Henrika. With only one chord it is not possible to determine whether Hristo 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 20 km would suggest that the chord might lie close to the central portion of the asteroid.
The figure below shows the Tangra light curve of the occultation.
Observation details for MP (826) Henrika By Star TYC 6120-00450-1 On 2010-01-19 at 13:26:50.0 _______________________________ Observer Hristo Pavlov Location Marsfield, NSW,AU Longitude +151:06:16.8 Latitude -33:46:11.5 Altitude 100 m Datum WGS84 Telescope SCT including Cass and Mak Aperture 20 cm Seeing Strong flickering Clear Timing GPS - time inserted Video with frame analysis Disappearance 13:26:55.77 Reappearance 13:26:57.01 Comments: The star was very low - only 8 deg above the horizon http://www.hristopavlov.net/Observations/Positives/2010-01-19%20Henrika/Event.html Report prepopulated by IOTA Reporting Add-in for OW ver.1.4