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A 9 second occultation was recorded by Bill Hanna, using ADVS video technique.
Two clearly observed miss were recorded for this event.
the first prediction showed the path t othe south of Australia
View the Jan 2011 prediction.
But a later one just a few weeks before the event was much more accurate and clearly close to the path.
View the 2 Jun 2014 prediction.
Observers:
1(M) J Milner,Glen Forrest, WA, AU
2 W Hanna,Alice Springs, Australia
3(P) RIO Prediction, Jan 2011
Discussion:
The circle above is plotted at the expected 804 km diameter of Ixion. With only one chord it is not possible to determine whether Bill was north or south of the central line of the event.
The figure below shows the Tangra light curve of the occultation.
There has been some discussion about how to interpret the two non zero points at the bottom of the lightcurve. This could indicate a double star but it is cataloged at M 15.5, so if this is a companion it is very dim, and there is not enough data to be able to confirm this conjecture.
Observational Data:
Observation details for MP ( 28978 ) Ixion
By Star UCAC4 317-111666
On 2014-06-24 at 14:56:59.0
_______________________________
Observer Jacquie Milner
Location Glen Forrest, WA, AU
Longitude +116:05
Latitude -31:54
Altitude 260 m
Datum WGS84
Telescope SCT including Cass and Mak
Aperture 20 cm
Seeing Slight flickering Clear
Camera Type Mintron 12V1C-EX PAL/CCIR
Camera Delay -0.94
Timing GPS - time inserted Video with frame analysis
Missed
Comments:
_______________________________
Observer William Hanna
Location Alice Springs, Australia
Longitude +133:53
Latitude -23:42
Altitude 584 m
Datum WGS84
Telescope SCT including Cass and Mak
Aperture 20 cm
Seeing Steady Clear
Camera Type Grasshopper Express with ADVS ADVS
Camera Delay 0
Timing GPS - time inserted Video with frame analysis
Disappearance 14:54:46.22
Reappearance 14:54:55.22
Comments: gamma 1.0, gain 29dB calm, 8C