Appendix A:
Orbit Calculation Examples
A.1 ACS
A.2 COS
A.3 FGS
A.4 NICMOS
A.5 STIS
A.6 WFC3
A.6.1 Example 1: IR, 1 orbit, 2 filters
A.6.2 Example 2: UVIS, dithering, 2 orbits, 1 filter
Chapter 6 described the construction of an observing program and the calculation of the total orbit request for a Phase I proposal. As an illustration, this appendix contains some simple example orbit calculations for each of the science instruments (SIs) offered in Cycle 17.