Two positive occultations were recorded by Dave Gault and Hristo Pavlov, using video OSD technique.
There were 7 more stations registered in Occult Watcher, all of which would have been in the actual path, but sadly cloud and gale prevented observaion. Even Dave was clouded 5 seconds after the R.
View the updated prediction.
Observers: 1 H Pavlov,St Clair, NSW, Australia 2 D Gault,Hawkesbury Heights, NSW,AU 3(P) Prediction, 19 April
The circle above is plotted at the expected 352 km diameter of Europa. The Miriade 3D maodel for the obsered time is overlaid with a similar area and show good fit to the 4 points. With two chords we can be confident of the path of Europa and that it was south of the predicted line.
The figure below shows Dave's Tangra light curve of the occultation.
The figure below shows Hristo's Tangra light curve of the occultation.
Observation details for MP ( 52 ) Europa By Star UCAC2 26267706 On 2012-05-25 at 15:09:34.0 _______________________________ Observer Hristo Pavlov Location St Clair, NSW, Australia Longitude +150:46 Latitude -33:48 Altitude 68 m Datum WGS84 Telescope SCT including Cass and Mak Aperture 35 cm Seeing Slight flickering Broken cloud Camera Type Other integrating Other Camera Delay 0 Timing GPS - time inserted Video with frame analysis Disappearance 15:09:30.15 Reappearance 15:09:48.15 Comments: http://www.hristopavlov.net/Observations/Positives/2012-05-26%20Europa/Event.html Report prepopulated by IOTA Reporting Add-in for OW ver.1.6 _______________________________ Observer Dave Gault Location Hawkesbury Heights Longitude +150:38 Latitude -33:39 Altitude 286 m Datum WGS84 Telescope SCT including Cass and Mak Aperture 30 cm Seeing Strong flickering Broken cloud Camera Type WAT120N PAL/CCIR Camera Delay 0.05 Timing GPS - time inserted Video with frame analysis Disappearance 15:09:32.57 Reappearance 15:09:47.77 Comments: clouded 5 seconds after R Report prepopulated by IOTA Reporting Add-in for OW ver.1.6