********************************************************************* * * * Tips for Preparing an Observing List for 0.9m Service Observing * * * ********************************************************************* 1. If two programs are submitted (i.e., photometric and non-photometric), clearly designate the two and make them able to "stand alone". Thus, the observer can work off the photometric list if the weather is photometric and completely disregard the non-photometric program that night. If a particular target should be observed under either condition, it should be included in both lists. 2. If a program is submitted that requires a given target or standard to be observed more than once per night (i.e., at different airmasses), it is best to structure the observing list in a time-sequential order and therefore list that object multiple times. This methodology has alleviated missing observations of standards at necessary airmasses in the past and thus better ensures the quality and usefulness of the data. 3. If you require that exposure times need to be adjusted based on the observing conditions, it is easiest to generate a finder with a clearly marked target and state an acceptable range in peak counts for that target (a fair limit is ~50,000 counts, to avoid saturation at ~64,000 and to leave a little bit of breathing room). For instance, if you are doing precision astrometry and require at least 30,000 counts on a target, you could set an acceptable range of, say, 30,000 - 40,000 counts and the observer will adjust the exposure time to meet that requirement. 4. Finders are more quickly and easily accessed by the observer if they are electronic and POSTED ON THE WEB. For example, if the observer must use the paper copy of Landolt standards, he must flip through several pages to locate the correct finder, which takes time. Googling Landolt standards will routinely yield the latest website giving finder charts (the website keeps moving, so we don't list it here). 5. Access to electronic finders for science targets is highly encouraged to ensure the target is in the field. Since the upgrade of the telescope control system at the 0.9m in 2005, the pointing is superb such that the target is usually within the center ~1 arcmin of the CCD (providing the coordinates given are accurate). Finders are not strictly required, but without them, we cannot guarantee the target is in the field of view.