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OCCULTATION OF UCAC4 413-040268 BY 754 Malabar
2017 February 15


Dave Gault and Tony Barry have both observed occultations by (754) Malabar from locations in western Sydney. The chords are very close together and both observers recorded durations around 5.5 seconds.

View the IOTA update.

Observers:
  1    T Barry, Penrith, NSW, AU            
  2    D Gault,Hawkesbury Heights, NSW, AU  
  3(P) Prediction                           

               

         



       

Malabar occultation__ 2017 February 15

Discussion:

The circle above is plotted at the expected 87 km diameter of Malabar. With the chords so close together, it is not possible to determine whether Dave and Tony were east or west of the central line of the event. The circle has been plotted on the observed chord .

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

Malabar  occultation__ 2017 February 15

Observational Data:

Observation details for MP ( 754 ) Malabar
By Star              TYC 6268-01114-1
On 2015-07-22  at 07:48:18.0

_______________________________

Observer   B. Loader
Location   Darfield
Longitude  +172:06
Latitude   -43:28
Altitude   210 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   25 cm
Seeing     Slight flickering Clear 
Camera Type  WAT910BD       AAV-PAL       
Camera Delay 
Timing     GPS - time inserted Video with frame analysis
Disappearance  07:48:23.02
Reappearance   07:48:30.06
Comments:  Lightcurve from 07:46:03 to 07:50:30 by Tangra v3.4.8 using AperturePhotometry/AverageBackground. Analysis by AOTA v4.1.5.8. Report prepopulated by IOTA Reporting Add-in for OW ver.1.8

        

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