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OCCULTATION OF UCAC4 305-075825 BY 493 Griseldis

A 0.16 second occultation was recorded by Jonathan Bradshaw, using an SCT Telescope and Watec 910BD camera.

View the IOTA update.

  1    J Bradshaw, Samford Valley, Queensland, Australia
  2(P) Prediction- IOTA Feed                



Griseldis occultation__ 20160504


The circle above is plotted at the expected diameter of Griseldis. With only one chord it is not possible to determine whether Jonathan was north or south of the central line of the event, but it is clear that the event was well north of the prediction. The circle has been plotted on the observed chord.

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

Griseldis  occultation__ 20160504

Observational Data:

Observation details for MP ( 493 ) Griseldis
By Star              UCAC4 305-075825
On 2016-05-04  at 12:41:55.0


Observer   Jonathan Bradshaw
Location   Samford Valley, Qld, Australia
Longitude  +152:50
Latitude   -27:22
Altitude   80 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   36 cm
Seeing     Steady Clear 
Camera Type  Watec 910BD    NTSC/EIA      
Camera Delay 
Timing     GPS - time inserted Video with frame analysis
Disappearance  12:41:53.60
Reappearance   12:41:54.16
Comments:   Report prepopulated by IOTA Reporting Add-in for OW ver.1.8

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