33 | | LM: this topic needs discussion, but in principle, this can be done together with the NCPA tests (2.6). Basically, when changing the elevation of the telescope, re-acquire the on-axis source with SOUL and record how much the Pyramid WFS moved from one elevation to another one in order to re-center it on the source. After SOUL acquired the on-axis source, look for it on the TECCAM and use our internal mirrors (IN-TT and DM) to re-center the PSF and pupil on the hot pixels. Flexures of the RR or ARGOS source affect the result. |
| 33 | LM: this topic needs discussion, but in principle, this can be done together with the NCPA tests (2.6). Basically, when changing the elevation of the telescope, re-acquire the on-axis source with SOUL and record how much the Pyramid WFS moved from one elevation to another one in order to re-center it on the source (maybe this already exists). After SOUL acquired the on-axis source, look for it on the TECCAM and use our internal mirrors (IN-TT and DM) to re-center the PSF and pupil on the hot pixels. If big adjustments of our mirror positions are required, we can build the look-up table (--> define "big"). Flexures of the RR or ARGOS source affect the result. |