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Three chords were recorded using video OSD technique.
View the updated prediction.
Observers:
1 J Bradshaw,Samford Valley,QLD,AU
2 J Broughton,Reedy Creek, QLD, AU
3 J Broughton,Brunswick Heads, NSW, AU
4(P) Prediction, 10 Jan
Discussion:
The circle above is plotted at the best fit circle of 106 km diameter of Arsinoe. An Ellipse fit gave excatly the same residual and did not look any better. With 3 chords we can be confident of the path of Arsinoe and that it was north of the predicted line.
The figure below show Jonathan's Tangra light curve of the occultation.
The figures below show John's Tangra light curves of the occultation.
Observational Data:
Observation details for MP ( 404 ) Arsinoe
By Star UCAC2 24230221
On 2012-05-04 at 14:51:03.0
_______________________________
Observer Jonathan Bradshaw
Location Samford Valley,QLD,AU
Longitude +152:50
Latitude -27:22
Altitude 80 m
Datum WGS84
Telescope Newtonian
Aperture 36 cm
Seeing Steady Clear
Camera Type G-Star PAL/CCIR
Camera Delay 0.05
Timing GPS - time inserted Video with frame analysis
Disappearance 14:50:55.63
Reappearance 14:51:09.88
Comments: Nice clear event. Used 2 field integration to overcome some camera noise.
Report prepopulated by IOTA Reporting Add-in for OW ver.1.6
_______________________________
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 Clear
Camera Type WAT120N PAL/CCIR
Camera Delay 0.17
Timing GPS - time inserted Video with frame analysis
Disappearance 14:51:07.83
Reappearance 14:51:23.19
Comments:
_______________________________
Observer John Broughton
Location Brunswick Heads, NSW, AU
Longitude +153:32
Latitude -28:33
Altitude 7 m
Datum WGS84
Telescope Newtonian
Aperture 32 cm
Seeing Steady Clear
Camera Type WAT120N PAL/CCIR
Camera Delay 0.17
Timing GPS - other linking Video with frame analysis
Disappearance 14:51:14.78
Reappearance 14:51:27.58
Comments: