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Two chords recorded , using Video OSD technique.
No clearly observed misses were recorded for this event.
View the updated prediction.
Observers:
1 D Herald,Murrumbateman, NSW, AU
2 P Purcell,COLINTON, NSW, AUSTRALIA
3(P) Prediction, 12 Nov
Discussion:
The ellipse above is plotted at the best fit axis ratio as determined by Occult. With 2 chords we can be confident of the path of Philomela and that it was close to the predicted line. The DAMIT 3D model has been overlaid on the measured ellipse and shows reasonable fit and agrees well with the ellipse orientation.
The figure below shows the AOTA analysis of the Tangra light curve of Dave's occultation.
The figure below shows the AOTA analysis of the Limovie light curve of Patrick's occultation.
Observational Data:
Observation details for MP ( 196 ) Philomela
By Star TYC 1832-01277-1
On 2014-12-18 at 16:40:38.0
_______________________________
Observer Dave Herald
Location Murrumbateman, NSW, AU
Longitude +148:59
Latitude -34:57
Altitude 594 m
Datum WGS84
Telescope SCT including Cass and Mak
Aperture 40 cm
Seeing Strong flickering Clear wind
Camera Type WAT910BD PAL/CCIR
Camera Delay -0.02
Timing GPS - time inserted Video with frame analysis
Disappearance 16:40:35.53
Reappearance 16:40:46.86
Comments: Lightcurve from 16:39:39 to 16:41:18 by Tangra v3.1.15
using AperturePhotometry/AverageBackground.
Analysis by AOTA v4.1.4.0.
Report prepopulated by IOTA Reporting Add-in for OW ver.1.8
_______________________________
Observer Patrick Purcell
Location COLINTON, NSW, AUSTRALIA
Longitude +149:09
Latitude -35:50
Altitude 734 m
Datum WGS84
Telescope SCT including Cass and Mak
Aperture 20 cm
Seeing Slight flickering Thin cloud < 2 wind
Camera Type WAT910BD AAV-PAL
Camera Delay -0.34
Timing GPS - time inserted Video with frame analysis
Disappearance 16:40:42.62
Reappearance 16:40:48.38
Comments: S/N at disappearance = 23.6 S/N at reappearance = 19.5
Watec 910BD camera with binning of 32 frames.