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A 2.5 second occultation was recorded by Graeme McKay, using video technique.
Two clearly observed misses were recorded for this event.
View the TT14 prediction.
Observers: 1(M) P. Graham, Martinborough,NZ 2 G McKay,Blenheim, NZ 3(M) D Hooper,Melbourne, Australia 4(M) B Loader,Darfield,NZ 5(P) Prediction, TT14 30 Jan
Discussion:
The circle above is plotted at the expected 66 km diameter of Venetia. With only one chord it is not possible to determine whether Graeme was north or south of the central line of the event.
The figure below shows the Tangra light curve of the occultation.
Peter Graham observed the event and his path is very close to the northern edge of Venetia if the circle is drawn to the North of Graeme's chord but the only dip in Peter's light curve is just 2 samples long and is tens of seconds later so his observation has been treated as a miss and sadly does not help to constrain the position of Venetia.
Observational Data:
Observation details for MP ( 487 ) Venetia By Star UCAC4 379-078122 On 2015-02-24 at 16:40:11.0 _______________________________ Observer Graeme McKay Location Blenheim, NZ Longitude +173:57 Latitude -41:32 Altitude 18 m Datum WGS84 Telescope SCT including Cass and Mak Aperture 28 cm Seeing Steady Clear Camera Type WAT120N+ PAL/CCIR Camera Delay -0.19 Timing GPS - time inserted Video with frame analysis Disappearance 16:40:16.85 Reappearance 16:40:19.41 Comments: Report prepopulated by IOTA Reporting Add-in for OW ver.1.8 _______________________________ 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 WAT910BD AAV-PAL Camera Delay -0.06 Timing GPS - time inserted Video with frame analysis Missed Comments: Report prepopulated by IOTA Reporting Add-in for OW ver.1.8 _______________________________ Observer Dean Hooper Location Melbourne, Australia Longitude +145:00 Latitude -37:56 Altitude 28 m Datum WGS84 Telescope SCT including Cass and Mak Aperture 20 cm Seeing Steady Clear Camera Type WAT910HX PAL/CCIR Camera Delay -0.33 Timing GPS - time inserted Video with frame analysis Missed Comments: MISS - Light curve data generated and inspected using Tangra v3.3.6 and Limovie Ver.0.9.97.3hP5. _______________________________ Observer Peter Graham Location Martinborough NZ Longitude +175:29 Latitude -41:14 Altitude 73 m Datum WGS84 Telescope Aperture 25 cm Seeing Slight flickering Clear Camera Type WAT120N+ PAL/CCIR Camera Delay 2.59 Timing GPS - time inserted Video with frame analysis Missed Comments: A short 2 sample dip but it does not align with Graeme McKay's