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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
Discussion:
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.
Observational Data:
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