A 22 second occultation was recorded by Dean Hooper, using an SCT Telescope and Watec 910HX camera.

A 19 second occultation was recorded by Jacqui Milner, using an SCT Telescope and Mintron 12v1C-EX camera.

View the IOTA update.

Observers:
  1    D Hooper, Melbourne, Victoria, Australia          
  2    J Milner, Bayswater, Victoria, Australia          
  3(P) Prediction




       

Discussion:

The DAMIT model above is plotted at the expected diameter of Thisbe. The model has been plotted to fit the observed chords. The event appears to have been south of the predicted path.

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

Hooper:

Observational Data:

Observation details for MP ( 88 ) Thisbe
By Star              UCAC4 430-054001
On 2017-06-07  at 11:55:24.0

_______________________________

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 Sky glow from Moon
Camera Type  Watec 910HX    PAL/CCIR      
Camera Delay 
Timing     GPS - time inserted Video with frame analysis
Disappearance  11:55:01.74
Reappearance   11:55:23.82
Comments: Light curve generation Tangra v3.6.7.  Time analysis AOTA v4.2.8.0

 Low magnitude drop event faintly discernible real-time on the monitor

Curve shows an indistinct disappearance, with a more defined reappearance.

_______________________________

Observer   Jacquie Milner
Location   Bayswater, Vic, AU
Longitude  +145:14
Latitude   -37:50
Altitude   110 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   20 cm
Seeing     Steady Clear 
Camera Type  Mintron 12v1C-EX             PAL/CCIR      
Camera Delay 
Timing     GPS - time inserted Video with frame analysis
Disappearance  11:55:04.96
Reappearance   11:55:24.16
Comments: Asteroid was seen clearly approaching the target star beforehand

 Report prepopulated by IOTA Reporting Add-in for OW ver.1.8