| 1 | | '''Here we go''' |
| | 1 | Here is a simple page that Steve wrote Sep29,2023. It is an experiment. |
| | 2 | |
| | 3 | *** When do I run autotwi.py for morning or evening skyflats? |
| | 4 | |
| | 5 | * [wiki:HetProcedures/RA/autotwi autotwi.py] is a useful script for taking HPF, LRS2 and VIRUS sky flats. It has a clear and extensive usage message. However, I was always confused by '''when we should run the script'''. By this I mean it was not clear when we execute the command relative to the time of sunset or sunrise. |
| | 6 | |
| | 7 | Some useful information about this is below. |
| | 8 | |
| | 9 | {{{ |
| | 10 | Start the autotwi script in the morning when the raw gc2 flux level is around 2.7k adu. |
| | 11 | Start the autotwi script in the evening 4min before sunset (if taking HPF flats). |
| | 12 | Start the autotwi script in the evening after the dome is open and ready for flats with the raw gc2 flux higher than 45K adu (if taking LRS2/ and VIRUS flats). |
| | 13 | }}} |
| | 14 | |
| | 15 | |
