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Two clearly observed chords were recorded for this event.
View the updated prediction.
Observers:
1 J Milner,Bayswater, VIC, AU
2 W Hanna,Alice Springs, Australia
3(P) Prediction, Apr 06
Discussion:
The ellipse above is plotted at the best fit axis ratio as determined by Occult. With two chords we can be confident of the path of Palisiana and that it was close to the predicted line. There is sadly no Damit or ISAM 3D model to confirm the shape. Light Curve Data results for Palisana in the light curve data below suggests that in the time between the 2 chords Palisiana could have rotated a significant turn so the correct ellipse is probably less elongated. Asteroid 914 Palisana Albedo 0.0943 Rotation period 15.922 hours .. rotation in 10 mins 3.8 deg. .. time to rotate 5 deg 13.3 mins. Maximum mag variation 0.18 => maximum axis ratio 1.18 : 1
The figure below shows the Tangra light curve of Jacquie's occultation.
The figure below shows the Tangra light curve of Bill's occultation.
Observational Data:
Observation details for MP ( 914 ) Palisana
By Star UCAC2 17309700
On 2015-05-05 at 16:10:51.0
_______________________________
Observer Jacquie Milner
Location Bayswater, VIC, AU
Longitude +145:14
Latitude -37:50
Altitude 110 m
Datum WGS84
Telescope SCT including Cass and Mak
Aperture 20 cm
Seeing Slight flickering Broken cloud wind
Camera Type Mintron 12V1C-EX PAL/CCIR
Camera Delay
Timing GPS - time inserted Video with frame analysis
Disappearance 16:10:57.98
Reappearance 16:11:02.80
Comments: A very noisy signal. Windy and cloud blowing in, but fortunately stayed away for event time. Full moon only 20 degrees away and target star close to zenith. Times remeasured by JT using AOTA
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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 Strong flickering Clear wind
Camera Type Grasshopper Express with ADVS ADVS
Camera Delay
Timing GPS - time inserted Video with frame analysis
Disappearance 16:14:27.46
Reappearance 16:14:39.81
Comments: Gamma 1.0, gain 29dB Gentle breeze with occasional gusts; 16C Remeasured by JT using AOTA