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OCCULTATION OF UCAC4 281-223082 BY 863 Benkoela
20170918


A 1 second occultation was recorded by Dave Herald, using an SCT Telescope and Watec 910BD camera.

View the IOTA update.

Observers:
  1    D Herald, Murrumbateman, New South Wales, Australia
  2(P) Prediction- IOTA Feed                

       

Benkoela occultation__ 20170918

Discussion:

The circle above is plotted at the expected diameter of Benkoela. With only one chord, it is not possible to tell if Bave was north or south of the centre line of the event. The circle has been plotted centred on the observed chord.

The event appears significantly later than the predicted time.

The figure below shows the Tangra light curve of the occultation.

Herald:

Benkoela occultation__ 20170918

Observational Data:


Observation details for MP ( 863 ) Benkoela
By Star              UCAC4 281-223082
On 2017-09-18  at 13:25:40.0

_______________________________

Observer   Dave Herald
Location   Murrumbateman, NSW, Australia
Longitude  +148:59
Latitude   -34:57
Altitude   594 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   40 cm
Seeing     Steady Thin cloud < 2 
Camera Type  Watec 910BD    PAL/CCIR      
Camera Delay 
Timing     GPS - time inserted Video with frame analysis
Disappearance  13:26:13.63
Reappearance   13:26:14.99
Comments: Event 34 secs later than predicted Lightcurve from 13:24:10 to 13:27:09 by Tangra v3.6.8
using AperturePhotometry/AverageBackground. Analysis by AOTA v4.3.4.0.
Report prepopulated by IOTA Reporting Add-in for OW ver.1.8

        

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