A 12 second occultation was recorded by Dean Hooper, using an SCT Telescope and Watec 910HX camera.

A 12 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- IOTA Feed                

         



       

Discussion:

The DAMIT model above is plotted at the expected size of Bettina. It appears from the length of the observed chords that Dean and Jacqui would have been close to the centre line of the event, and the DAMIT model has been plotted accordingly.

The figures below show the Tangra light curve of the occultation.

Dean Hooper:

Jacqui Milner:

Observational Data:

Observation details for MP ( 250 ) Bettina
By Star              UCAC4 355-70250
On 2017-03-26  at 19:16:03.0

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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 Windy
Camera Type  Watec 910HX    PAL/CCIR      
Camera Delay 
Timing     GPS - time inserted Video with frame analysis
Disappearance  19:15:45.28
Reappearance   19:15:57.40
Comments: Light curve generation Tangra v3.6.7.  Time analysis AOTA v4.2.8.0 This event occured 12 minutes after the 270 Anahita positive!  

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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     Strong flickering Clear some brief wind gusts
Camera Type  Mintron 12v1C-EX             PAL/CCIR      
Camera Delay 
Timing     GPS - time inserted Video with frame analysis
Disappearance  19:15:43.48
Reappearance   19:15:55.52
Comments: Very bad seeing ahead of an aproaching cold front. The low magnitude drop did not show up well in my recording and I initially considered it a miss. 
But I have reviewed it following discussion with Dean Hooper on his nearby positive and believe I have found a real event in the noise.
Report prepopulated by IOTA Reporting Add-in for OW ver.1.8