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A 5 second occultation was recorded by Tony Barry, using an SCT Telescope and Flea 3-28S4M camera.
A 6 second occultation was recorded by Dave Gault, using an SCT Telescope and Watec 910BD camera.
Two misses were recorded for this event.
View the IOTA update.
Observers:
1 D Gault, Hawkesbury Heights, New South Wales, Australia
2 T Barry ,Penrith, Sydney, New South Wales, Australia
3(M) D Herald, Murrumbateman, New South Wales, Australia
4(M) J Newman, Flynn, Australian Capital Territory, Australia
5(P) Prediction
Discussion:
The ellipse above is plotted at the expected diameters of Ohio. The ellipse has been plotted to fit the observed chords. The event appears to have been to the north of the predicted path.
The figure below shows the Tangra light curve of the occultation.
Observational Data:
Observation details for MP ( 439 ) Ohio By Star UCAC4 451-050733 On 2017-05-27 at 08:43:03.0 _______________________________ Observer Tony Barry Location Penrith, Sydney Longitude +150:43 Latitude -33:44 Altitude 52 m Datum WGS84 Telescope SCT including Cass and Mak Aperture 25 cm Seeing Steady Clear Camera Type Flea 3-28S4M with ADVS ADVS Camera Delay Timing GPS - time inserted Video, photo or photoelectric Disappearance 08:43:14.75 Reappearance 08:43:19.56 Comments: Clear skies. Nice occultation. Report prepopulated by IOTA Reporting Add-in for OW ver.1.8 _______________________________ Observer Dave Gault Location Hawkesbury Heights, NSW, AU 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 Watec 910BD PAL/CCIR Camera Delay Timing GPS - time inserted Video with frame analysis Disappearance 08:43:13.97 Reappearance 08:43:19.73 Comments: Light curve plot supplied with report. _______________________________ Observer Dave Herald Location Murrumbateman, NSW, Australia Longitude +148:59 Latitude -34:57 Altitude 594 m Datum WGS84 Telescope SCT including Cass and Mak Aperture 40 cm Seeing Slight flickering Thin cloud < 2 Camera Type Watec 910BD PAL/CCIR Camera Delay Timing GPS - time inserted Video with frame analysis Missed Comments: Lightcurve from 08:41:21 to 08:44:20 by Tangra v3.6.5 using AperturePhotometry/AverageBackground.
Analysis by AOTA v4.3.0.0. Report prepopulated by IOTA Reporting Add-in for OW ver.1.8 _______________________________ Observer John Newman Location Flynn, ACT, AU Longitude +149:02 Latitude -35:11 Altitude 657 m Datum WGS84 Telescope SCT including Cass and Mak Aperture 41 cm Seeing Steady Clear Camera Type Watec 910BD PAL/CCIR Camera Delay Timing GPS - time inserted Video with frame analysis Missed Comments: Report prepopulated by IOTA Reporting Add-in for OW ver.1.8