1. Observing Planning Karen Meech Institute for Astronomy TOPS 2003 Image copyright, R. Wainscoat, IfA Image courtesy K. Meech

2. Session Goals Teachers define what is required to plan observations Teachers define what is required to plan observations Task oriented Task oriented Need a specific task / goal to plan around Need a specific task / goal to plan around

3. Summer Workshop Annual meeting of planetary scientists Annual meeting of planetary scientists Sep 1-6, 2003 Monterray, CA Latest science results from missions & ground Deep Impact workshop Deep Impact workshop Public & professional contributions Mon 9/1 13:00-18:00 Teacher workshop Teacher workshop Extrasolar planets Sat 9/6 – 08:00-17:30

4. Extrasolar Planets Teacher Workshop Science Talks Science Talks G. Laughlin – Latest discoveries: Galactic planetary census G. Laughlin – Latest discoveries: Galactic planetary census M. Marley – Giant planets & Brown Dwarfs M. Marley – Giant planets & Brown Dwarfs Poster sessions/talks Poster sessions/talks Workshop materials Workshop materials TOPS Teacher participation TOPS Teacher participation TOPS partial funding TOPS partial funding DI possible funding DI possible funding SETI Institute through the Kepler mission SETI Institute through the Kepler mission Arwork credit: NASA

5. Essentials for a Plan Science Goals Science Goals Orbit? Orbit? Composition Composition Difference before/after Difference before/after Extended mission Extended mission Outreach - no Outreach - no Typical comet? - no Typical comet? - no Origins? -no Origins? -no Applications? Applications? Biological inferences - no Biological inferences - no Rotation – effect on orbit Mission design-no Size –mo (IR) Cratering theory/obs?x Natural impacts – comparisons-no Activity effect impact? Comet aging

6. DI Science Goals Orbit of comet? Positions vs time Positions vs time What to measure? What to measure? Depends on exposure? Depends on exposure? Different wavelengths Different wavelengths No dust/gas – to see center No dust/gas – to see center Far from the sun Far from the sun Knowledge of orbit period Knowledge of orbit period How much do we have? How much do we have? Duration, #of points Duration, #of points Visibility Visibility How do you fit orbits How do you fit orbits Composition Composition Spectroscopy – no Spectroscopy – no Color filters? Color filters? Look at dust only? Look at dust only? Difference before/after Orbit? Reaction forces Brightness Rotation – if we wait (2 yrs) Rotation Brightness Timescale Info? Literature (Meech astronomer) Extended mission

7. What is in an Observing plan? Where is it? Where is it? Orbit – RA and dec – ephemeris Orbit – RA and dec – ephemeris Observability – airmass Observability – airmass Near meridian Near meridian Brightness Brightness Choosing the filter Choosing the filter For dust – I For dust – I Telescope tracking Telescope tracking Finder charts Finder charts Lunar Phase Lunar Phase Time scales Time scales How many pictures How often Time constraints Exposure time Depends on brightness Depends on size— surface brightness