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Four positive chords were recorded using video OSD technique.
View the updated prediction.
Observers: 1 J Talbot,Waikanae Beach, NZ 2 P Graham,Martinborough,NZ 3 B Allen,Blenheim, NZ 4 G McKay,Blenheim, New Zealand 5(P) Prediction
Discussion:
The ellipse above is plotted at the best fit axis ratio as determined by Occult. The area is very close to that of the predicted circle of 123 km diameter. With 4 chords we can be confident of the path of Zelinda and that it was north of the predicted line.
The figure below shows John's Tangra light curve of the occultation.
The figure below shows Peter's Tangra light curve of the occultation.
The figure below shows Graeme's Tangra light curve of the occultation.
The figure below shows Bill's Tangra light curve of the occultation.
Observational Data:
Observation details for MP ( 654 ) Zelinda By Star UCAC2 14437241 On 2013-05-12 at 14:32:39.0 _______________________________ Observer John Talbot Location Waikanae Beach, NZ Longitude +175:01 Latitude -40:51 Altitude 5 m Datum WGS84 Telescope Newtonian Aperture 25 cm Seeing Slight flickering Clear Camera Type KPC-350BH PAL/CCIR Camera Delay 0 Timing GPS - time inserted Video with frame analysis Disappearance 14:32:41.63 Reappearance 14:32:48.31 Comments: Clear, Calm, on target, Event found on video using Tangra V3 new features. star and MP visible separately at several points. My first positive MP in 3 years! Report prepopulated by IOTA Reporting Add-in for OW ver.1.7 _______________________________ Observer Peter Graham Location Martinborough/ NZ Longitude +175:29 Latitude -41:14 Altitude 73 m Datum WGS84 Telescope SCT including Cass and Mak Aperture 25 cm Seeing Steady Clear Camera Type WAT120N+ PAL/CCIR Camera Delay 0.67 Timing GPS - time inserted Video with frame analysis Disappearance 14:32:36.35 Reappearance 14:32:46.55 Comments: _______________________________ Observer Bill Allen Location Blenheim, NZ Longitude +173:50 Latitude -41:29 Altitude 38 m Datum WGS84 Telescope SCT including Cass and Mak Aperture 40 cm Seeing Steady Clear Camera Type WAT120N+ PAL/CCIR Camera Delay 1.31 Timing GPS - time inserted Video with frame analysis Disappearance 14:32:50.58 Reappearance 14:32:54.64 Comments: Datum NZ1949 (topographical map) _______________________________ Observer Graeme McKay Location Blenheim, New Zealand 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 14:32:48.84 Reappearance 14:32:53.04 Comments: Report prepopulated by IOTA Reporting Add-in for OW ver.1.7