Two Positive chords were , using Video OSD technique.

No clearly observed misses were recorded for this event.

View the TT14 prediction.

Observers:
  1    D Gault,Kuriwa Observatory, NSW, AU  
  2    D Herald,Murrumbateman, NSW, AU      
  3(P) Prediction,  TT14 27 Sept            

        

Discussion:

The ellipse above is plotted at the maximum axis ratio as determined by lightcurve inversion data and with a similar area to the predicted diameter of 194 km. With two fairly close chords of similar size and roughly parallel edges it is not possible to determine whether the Daves were north or south of the central line of the event. However we can be confident that the path of Hermione was north of the predicted line. The DAMIT 3D model has been overlaid on the ellipse and shows reasonable fit. There are 2 DAMIT Models - I have chosen the one that gives slightly better fit but is also shows the new concave modeling ability which implies a large crater on the face of Hermione.

The figure below shows the IOTA analysis of Dave Herald's light curve of the occultation.

The figure below shows the IOTA analysis of Dave Gault's light curve of the occultation.

Observational Data:

Observation details for MP ( 121 ) Hermione
By Star              UCAC4 318-238889
On 2014-10-17  at 13:46:57.0

_______________________________
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     Slight flickering Clear
Camera Type  WAT910BD       PAL/CCIR
Camera Delay -0.04
Timing     GPS - time inserted Video with frame analysis
Disappearance  13:46:33.54
Reappearance   13:46:45.38
Comments: A perfect event! 
Lightcurve from 13:44:59 to 13:47:28 by Tangra v3.1.10 
using AperturePhotometry/BackgroundMedian. 
Analysis by AOTA v4.1.2.2. 
Report prepopulated by IOTA Reporting Add-in for OW ver.1.8
_______________________________

Observer   Dave Gault
Location   Kuriwa Observatory, NSW, AU
Longitude  +150:38
Latitude   -33:39
Altitude   286 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   30 cm
Seeing     Steady Clear
Camera Type  Grasshopper Express with ADVS              ADVS
Camera Delay 0
Timing     GPS - time inserted Video with frame analysis
Disappearance  13:46:46.88
Reappearance   13:46:58.15
Comments:  Lightcurve from 13:45:50 to 13:48:16 by Tangra v3.1.10 
using AperturePhotometry/AverageBackground. 
Analysis by AOTA v4.1.2.1. 
Report prepopulated by IOTA Reporting Add-in for OW ver.1.8