Graze logo

OCCULTATION OF UCAC2 34468675 BY 106 Dione
2012 April 20


Three clearly observed misses were recorded for this event.

View the updated prediction.

Observers:
  1(M) D Gault,Hawkesbury Heights
  2(M) B Allen,Blenheim, NZ
  3(M) B Loader,Darfield,NZ
  4(P) Prediction, 9 March

        

Dione occultation - 2012 April 20

Discussion:

The circle above is plotted at the expected 153 km diameter of Dione. With no positive chords we cannot say where the actual path was, so the circle has been plotted on the predicted path.

Observational Data:

Observation details for MP ( 106 ) Dione
By Star              UCAC2 34468675
On 2012-04-20  at 13:46:23.0

_______________________________

Observer   Dave Gault
Location   Hawkesbury Heights
Longitude  +150:38
Latitude   -33:39
Altitude   286 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   30 cm
Seeing     Steady Clear
Camera Type  WAT120N        PAL/CCIR
Camera Delay 0.17
Timing     GPS - time inserted Video with frame analysis

Missed

Comments:   Report prepopulated by IOTA Reporting Add-in for OW ver.1.6

_______________________________

Observer   Bill Allen
Location   Blenheim, NZ
Longitude  +173:50
Latitude   -41:29
Altitude   38 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   40 cm
Seeing     Steady Clear
Camera Type
Camera Delay
Timing     GPS - time inserted Video with frame analysis

Missed

Comments: Datum NZ1949 (topographical map) Good observing conditions Video with GPS

There were some intersting dips in the light curve but after close examination
we concluded they had to be classed as noise and that there was no event. jt
_______________________________

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     Steady Clear
Camera Type  WAT120N        PAL/CCIR
Camera Delay 0.65
Timing     GPS - time inserted Video with frame analysis

Missed

Comments: Telescope field partly obscured by end of observatory,
so needed 32x integration.
Report prepopulated by IOTA Reporting Add-in for OW ver.1.6

        

Return to 2012 occultation results



[Site Map] [What's an Occultation?]
[Total Occultations] [Grazing Occultations] [Planetary Occultations] [Jovian Satellite Eclipses]
[Timing Occultations] [Reporting Observations] [Coming Events] [Software]
[About Us] [Publications] [Membership] [Links]

[Top of Page][Return to Home Page]