P2.7 Checking pointing offset between SHARK-NIR and SOUL-AO

• Phase : 2
• Status : Draft
• Category : Daytime testing (functionality and operability) (C2)
• Recurrence : once at commissioning
• Duration : 3 days

Description

• Test to check if there is a considerable pointing offset between the SHARK-NIR (SCICAM/TECCAM) and SOUL-AO as a function of the elevation of the telescope

Prerequisites

• If relevant, estimate and remove the NCPA using the phase-diversity method.
• RR mounted on SX side.

Procedure

• Need to define the procedure?

Success criteria

• Estimate the pointing offset and conclude if it is acceptable or not. If not acceptable, take proper actions to overcome this issue.

Notes

LBTO support

• Authorize SHARK-NIR on the SX side.
• RR mounted on the SX side.
• Support from LBT SW Team, LBTI/Arcetri team to run SOUL AO

Associated SHARK-NIR personnel

Date performed and by whom

Comments

MB: Given the adjustment of SOULD LBT wrt to elevation should already have been done previsouly, I'd say it would be best to have also a look up table at least for TT where dichroic and in-TT are adjusted to compensate flexures [okay. in that case, we may need more time. lets discuss.]

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.