2011 Annual IOTA Meeting
July 16-19, 2011
Rocklin, CA
(updated Tuesday, July 19, 2011)
29th Annual Meeting of the International Occultation Timing Association
David Dunham, Greenbelt, MD, USA, dunham@starpower.net
Scroll down for preview of Occultation by asteroid Antiope
(Direct link to detailed webpage for this event)
You are invited to attend the 29th annual meeting of IOTA that will convene July 16-19, 2011, at Sierra College in Rocklin, California.
This is the same venue that IOTA used for their 21st meeting in July 2003.
Sierra College Campus (PDF file)
Meeting Location: Sewell Hall – Building S in the campus map
Parking: Lot S southwest of Sewell Hall
GPS Coordinates
Lat. 38.790728, Long. = -121.213875 deg
This page contains all the Presentations given at the 2011 Annual Meeting.
It is provided now so that you can download the Presentations you are interested in making it easier for you to follow along.
Meeting Agenda and Times
(updated July 10, 2011)
Downloadable version of the Agenda (Excel file)
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We plan to broadcast the meeting via the free EVO webcasting system, as we have done during the past few IOTA meetings. This will allow attendance, even for those giving presentations, by anyone around the world who can’t physically attend the meeting. Information about the EVO webcasting will be provided on this page during the days before the meeting.
First Time EVO Users!!! You MUST REGISTER before you can use the system.
If you get a screen with login and password, the system doesn’t recognize you.
Click on the Register link.
Those planning to use EVO to virtually attend the IOTA meeting are VERY STRONGLY ENCOURAGED to attend the practice session on July 12-13,
especially if you have not used EVO before. Invariably, there are problems with video, audio, computer connections, etc. that need to be ironed out,
and we can NOT help you with problems during the meeting; solving any problems is what the practice session is for.
Also, you need to turn off your microphone except when you are speaking to the group, to prevent feedback echoes in the system.
During the conference, don’t try to use your webcam, unless you are presenting, and possibly during the group introductions.
Users are encouraged to use headphones since they will help prevent feedback in the event you are speaking to the group.
All functions to turn video and audio off and on can be done from within EVO.
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If you would like to give a Presentation at the IOTA meeting, please contact David Dunham at dunham@starpower.net or Paul Maley at pdmaley@yahoo.com .
Please send a copy of your Presentation to David AND to: Brad Timerson at btimerson@rochester.rr.com
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Occultation of magnitude 6.7 star by binary asteroid (90) Antiope
Click here to go to the special page fully describing this event.
If weather conditions permit (the probability for clear skies is very high), we plan to observe the occultation of 6.7-mag. ZC 3339 (= SAO 165285 = HIP 112420) by the large binary asteroid (90) Antiope that is predicted to pass over much of northern California Tuesday morning, July 19th. The components of Antiope are each about 90 km in diameter; their centers are about 170 km apart, with a circular orbital period of 16.5 hours. The line joining the centers of the two objects will be about 45° from the direction of motion of Antiope, so one component or the other will occult the star in a path about 200 km wide (taking into account projection on the Earth’s surface). Most stations will have an occultation by one of the objects. For a short distance near the actual central line, either there will be no occultation by either component, or a short occultation by both components; we can’t be sure. By spreading many stations across the total range and the 1-sigma uncertainty zone, we plan to map the profiles of both objects in detail. Path maps and other information about this interesting occultation, and about the IOTA meeting (maps showing Sierra College), are in this 0.5-megabyte Power Point file.