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A 4 second occultation was recorded by Dave Herald, using an SCT Telescope and Watec 910BD camera.
A 3 second occultation was recorded by John Newman, using an SCT Telescope and Watec 910BD camera.
View the IOTA update.
Observers: 1 D Herald, Murrumbateman, New South Wales, Australia 2 J Newman, Flynn, Australian Capital Territory, Australia 3(P) Prediction
Discussion:
The DAMIT model above is plotted at the expected diameter of Eva. The model has been plotted to fit the observed chords.
The event appears to have been north of the predicted path.
The figure below shows the Tangra light curve of the occultation.
Herald:
Newman:
Observational Data:
Observation details for MP ( 164 ) Eva By Star UCAC4 285-116068 On 2017-10-10 at 09:12:45.0 _______________________________ 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 Steady Clear Camera Type Watec 910BD PAL/CCIR Camera Delay Timing GPS - time inserted Video with frame analysis Disappearance 09:12:41.13 Reappearance 09:12:44.53 Comments: Lightcurve from 09:11:15 to 09:13:55 by Tangra v3.6.9 using AperturePhotometry/AverageBackground. Analysis by AOTA v4.3.4.0. 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 Slight flickering Clear Camera Type Watec 910BD PAL/CCIR Camera Delay Timing GPS - time inserted Video with frame analysis Disappearance 09:12:40.91 Reappearance 09:12:44.36 Comments: Lightcurve from 09:12:31 to 09:13:00 by Tangra v3.6.9 using AperturePhotometry/AverageBackground. Analysis by AOTA v4.3.4.0. Report prepopulated by IOTA Reporting Add-in for OW ver.1.8