Useful Numbers
| Platescale of Williams HDF images | 0.04 "/pix |
| Platescale of Hawaii Flanking Field | 0.1885 "/pix |
| Platescale of Caltech Flanking Field | 0.283 "/pix |
| Platescale of STIS images | 0.0507 "/pix |
| Platescale of LRIS 2D spectra (y) | 0.212 "/pix |
| Platescale of LRIS 150l grating (x) | 4.8 AA/pix |
| Rough U Band limits | 3000 to 4000 ang |
| Rough G Band limits | 4000 to 5500 ang |
| Rough R Band limits | 6000 to 8000 ang |
| Rough I Band limits | 7000 to 9000 ang |
| z band central wavelength | 1 micron |
| j band central wavelength | 1.2 micron |
| h band central wavelength | 1.6 micron |
| k band central wavelength | 2.2 micron |
| LRIS PA in imheader | rotposn + 90 |
