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OCCULTATION OF UCAC4 497-023758 BY 790 Pretoria
20180203


A 13 second occultation was recorded by Paul Montague, using a ZWO ASI1600MM-C camera.

1 miss was recorded for this event.

There was no updated prediction for this event.

Observers:
  1(M) D Hooper, Melbourne, Victoria, Australia          
  2    P Montague, Golden Grove, South Australia, Australia      
  3(P) Prediction

       

Pretoria occultation__ 20180203

Discussion:

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

Observational Data:


Observation details for MP ( 790 ) Pretoria
By Star              UCAC4 497-023758
On 2018-02-03  at 14:40:35.0

_______________________________

Observer   Dean Hooper
Location   Melbourne, VIC, Australia
Longitude  +145:05
Latitude   -37:59
Altitude   10 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   28 cm
Seeing     Slight flickering Clear 
Camera Type  Watec 910HX    PAL/CCIR      
Camera Delay 
Timing     GPS - time inserted Video with frame analysis

Missed

Comments: Miss  

_______________________________

Observer   Paul Montague
Location   Golden Grove, SA, AU
Longitude  +138:42
Latitude   -34:46
Altitude   158 m
Datum      WGS84
Telescope other - specify below
Aperture   20 cm
Seeing     Strong flickering Clear Very gusty winds
Camera Type  Other - List in Comments     CCD Drift     
Camera Delay 
Timing     other Video, photo or photoelectric
Disappearance  14:40:58.20
Reappearance   14:41:11.69
Comments: Very windy conditions makes it hard to identify precise start/end.
Light curve attached fyi.
Used a ZWO ASI1600MM-C camera at -20 Celsius with 500ms exposures and a ROI around the target star
of about 800x600.Not sure whether FireCapture's timestamp is for the start, middle or end of the
exposure time. Report prepopulated by IOTA Reporting Add-in for OW ver.1.9

        

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