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OCCULTATION OF USNO 1B 705-592140 (=UCAC2 24437808) BY 134340 Pluto
2012 July 23


Three clearly observed misses were recorded for this event in our region. we understabnd that a small dip was observed in Hawaii.

View the local UCAC3 prediction.

Observers:
  1(M) B Loader,Darfield
  2(M) D Herald,Murrumbateman, NSW,AU
  3(M) J Bradshaw,Samford Valley, Qld, AU
  4(P) Prediction, OW TNO, 11May

        

Pluto occultation - 2012 July 23

Discussion:

The circle above is plotted at the expected 2306 km diameter of Pluto. With no positive chords we cannot say where the actual path was, so the circle has been plotted on the predicted path. We understabnd that a small dip was observed in Hawaii which implies that the path was well north of the predicted line.

Observational Data:

Observation details for MP ( 134340 ) Pluto
By Star           USNO 1B 705-592140 (=UCAC2 24437808)
On 2012-07-23  at 12:47:08.0

_______________________________

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

Missed

Comments: Probably very slight thin cloud/fog near start of run

_______________________________

Observer   Dave Herald
Location   Murrumbateman, NSW,AU
Longitude  +148:59
Latitude   -34:57
Altitude   594 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   40 cm
Seeing     Steady Clear
Camera Type  WAT120N        PAL/CCIR
Camera Delay 0.65
Timing     GPS - time inserted Video with frame analysis

Missed

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

_______________________________

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 Thin cloud < 2
Camera Type  G-Star         PAL/CCIR
Camera Delay 0.26
Timing     GPS - time inserted Video with frame analysis

Missed

Comments: Hampered by high cloud and a correspondingly low S/N.
Never lost visibility and Tangra analysis fails to show any event.

        

Return to 2012 occultation results



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