| 330 | === Observe - all night long! === |
| 331 | |
| 332 | 1. At start of night, check telescope pointing and zero the telescope coordinates using a bright star placed on the telescope boresight (defined as the center of the mosaic3 focal plane). |
| 333 | |
| 334 | 2. Move to the beginning of the first MzLS tile position |
| 335 | |
| 336 | 3. Focus the telescope [[BR]] |
| 337 | - create a focus script [[BR]] |
| 338 | - run the focus script from the /home/observer/exec directory [[BR]] |
| 339 | - log the Truss temperature [[BR]] |
| 340 | - set the telescope focus [[BR]] |
| 341 | - focus the guiders [[BR]] |
| 342 | |
| 343 | 4. Begin mzls*sh script |
| 344 | |
| 345 | In a nocs terminal window (on the mosaic3 computer): |
| 346 | Go to /home/observer/exec, and execute the mzls*.sh script. |
| 347 | |
| 348 | Monitor focus by checking the image quality on each frame. The Mayall has astigmatism, so one can tell from the shape of the images which way to move the focus. |
| 349 | |
| 350 | '''need a figure here''' |
| 351 | |
| 352 | |