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Two chords were recorded by John Broughton, using video OSD technique.
View the updated prediction.
Observers: 1 J Broughton,Reedy Creek, QLD, AU 2 J Broughton,Kingscliff, NSW, AU (mobile) 3(P) Prediction, Sep 27
Discussion:
The circle above is plotted at the expected 130 km diameter of Faina. With two chords we can be confident of the path of Faina and that it was west of the predicted line.
The figure below shows the John's mobile Tangra light curve of the occultation.
See note below re home station.
Observational Data:
Observation details for MP ( 751 ) Faina By Star TYC 7505-00877-1 On 2012-10-21 at 09:22:13.0 _______________________________ Observer John Broughton Location Reedy Creek, QLD, AU Longitude +153:23 Latitude -28:06 Altitude 66 m Datum WGS84 Telescope SCT including Cass and Mak Aperture 25 cm Seeing Steady Thick cloud > 2 Camera Type WAT120N PAL/CCIR Camera Delay 0.09 Timing GPS - time inserted Video with frame analysis Disappearance 09:22:11.30 Reappearance 09:22:27.10 Comments: Unattended drift-through video integrating 4x to mitigate a potential problem with cloud. However, the mag-9.6 target was invisible at the critical time, having lost all but 1% of its normal brightness level. Attempts to process it in Tangra failed due to loss of tracking, despite a mag -6.1 guiding star being visible throughout. The occultation was then positively detected and times estimated after stacking many captured frames in MaxIm DL (40 for D and 20 for R), facilitated by the presence of a star of equal magnitude 8' to its west. _______________________________ Observer John Broughton Location Kingscliff, NSW, AU Longitude +153:34 Latitude -28:15 Altitude 4 m Datum WGS84 Telescope Newtonian Aperture 32 cm Seeing Steady Broken cloud Camera Type WAT120N PAL/CCIR Camera Delay 0.09 Timing GPS - other linking Video with frame analysis Disappearance 09:22:10.63 Reappearance 09:22:25.19 Comments: