1. Next IOTA Meeting: 2011 July 16-17 Rocklin, California David Dunham, IOTA dunham@starpower.net David Kenyon, Sierra College dkenyon@sierracollege.edu

2. Occultation of ZC 3339 by the binary asteroid (90) Antiope, 2011 July 19 morning

3. 2011 July 19 th Antiope occultation path in more detail across the western USA Need to cover between the 2 gray lines 200 km apart to observe both 85-km components, + errors

4. 2011 July 19 th Antiope occultation path in more detail across n.e. Calif. & n.w. Nevada Hwy 299 Surprise Valley Rd Gerlach Empire Hwy 447 Canby Hwy 139 Old Station Hwy 44 Hwy 89 Hwy 99 Hwy 99 Observing sites can be near Hwy 99 from Sacramento to Red Bluff, & n. and s. of those cities. Very rarely, fog from S.F. Bay reaches Sacto; if so, use sites near US 395, Reno to Susanville, & Hwy 44 & 89 to n. of Burney. Sierra College IOTA meeting site

5. Approximate 2011 July Schedule Times are Pacific Daylight (add 7 h for UT) Sat. 16 th 11am IOTA business meeting Sat. 16 th 2pm IOTA technical session Sat. 16 th 6pm+ adjourn Sun. 17 th 9am – 6pm technical sessions Mon. 18 th 9am – noon technical sessions, if needed; planning for Antiope occultation Mon. 18 th afternoon planning &/or travel for Antiope Tues. 19 th 3:25am Antiope occultation

6. Sierra College, Rocklin, Calif. IOTA meeting Good motel DDs 50 th H.S. reunion was here Aug. 28, 2010 N. Sunrise Av

7. Sierra College, Rocklin, Calif. The yellow arrow marks the building (I think; if not, nearby) where we met in in July 2003. The Antiope occultation will occur almost exactly 8 years after our highly successful observations of the occultation of another 6 th -mag. star by (1263) Varsavia on 2003 July 18 in California before the 2003 meeting.