FLAO commissioning with InfraRed Test Camera (IRTC)

S. Esposito, G. Brusa, A. Riccardi

FLAO system external review, Florence, 30/31 March 2009

The Bent Gregorian Focus @ LBT

FLAO system external review, Florence, 30/31 March 2009 2

Commissioning campaign activity rationale

FLAO system external review, Florence, 30/31 March 2009 3

Phase I

Phase II

From FLAO_07 TOC

The two main phases of the commissioning campaign follow the idea to proceed in the test advancing in all system aspects (HW, control SW,data reduction SW) at the same time. So, the first phase milestones is a closed loop on-sky test with 200 modes and a bright star. This to recognize any serious problem in any of the components or procedures used.

The second phase will then optimize the system in all aspects and will contains the final test of the system on sky.

FLAO system external review, Florence, 30/31 March 2009 4

FLAO commisioning task list

Task name Duration (days)

Description Milestone Success criteria

LBT672a & W#2 re-integration

10 Reintegration of LBT672 and W unit. Alignment check. Units & FLAO system functional checks

FLAO sub-system re-integrated. Functional check passed

FLAO System compliance to requirements (compliance matrix)

FLAO functional test

Telescope installation of FLAO system

12 a) Telescope Installation of LBT672a, W#2, retro-reflecting optics. IRTC.

b) FLAO aligned with retro-reflector.

FLAO system aligned. IRTC aligned.

FLAO system alignment in specifications. (FLAO_09,FLAO_06)

FLAO initial test and 1st light on sky

15 days

5 nights

a) Control SW test.

b) 1st light on sky in closed loop

1st corrected images

Closed loop done with 200 modes for high flux.

FLAO closed loop test.

20 days

17 nights

Closed loop test with FLAO with different fluxes:

a) Engineering mode

b) Observing modes

FLAO closed loop achieved in engineering and observing modes.

SR values >= baseline values defined in FLAO_01.

Final system test

14 nights System performance test FLAO system commissioned with IRTC

FLAO performance >= baseline performance defined in FLAO_01

Commissioning campaign duration:-total time 93 days-days 57-nights 36

FLAO system external review, Florence, 30/31 March 2009 5

FLAO re-integration & alignment

1. System and sub-system functional test completed (compliance matrix). 2. LBT672, W#2 and IRTC installed at the telescope.3. FLAO aligned with retro-reflecting optics (including IRTC). (see

FLAO_06, FLAO_09)

Total duration: 22 days, daytime 22 days

FLAO system external review, Florence, 30/31 March 2009 6

FLAO system 1st light

1st corrected images on sky with 200 modes (engineering mode).

Task summary: verification of system performance at the telescope site in daytime. On sky test of source acquisition, pupil geometry verification, close loop with high flux (engineering mode).

Total duration: 25 days, daytime 20 days, nighttime 5 nights

FLAO system external review, Florence, 30/31 March 2009 7

Observing modes daytime & on sky test

On sky system performance vs. star mag, r0, v0: -engineering mode (baseline) -observing mode (ACE/ICE) (baseline) - ACE with on sky parameters optimization (goal)

[SR >= baseline performance (FLAO_06)]

Task summary: daytime fine calibration of system. Daytime closed loop test with verification of system performance in engineering and observing modes. On-sky test of system performance (both modes).

Total duration: 37 days, daytime 20 days, nighttime17 nights

FLAO system external review, Florence, 30/31 March 2009 8

Final on-sky FLAO test

SR better then baseline performance (FLAO_06):

Total duration: 14 days, nighttime14 nights

FLAO final test on sky:repetition of a specific set of tests already done in phase II (see FLAO_06)

Test list:Closed loop test with:

-Engineering mode-Observing modes

a) SLM, FSMb) ACE

FLAO system external review, Florence, 30/31 March 2009 9

FLAO commissioning resuming table

The required manpower is found compatible with the available resources of the group. The group relevant personnel is composed by 17 persons. About 5-7 personnel units will be available in Arcetri to progress with FLAO#2 test in solar tower (13/01/10-06/07/10).

FLAO system external review, Florence, 30/31 March 2009 10

Conclusion

The FLAO system telescope

commissioning plan with IRTC

has been formulated.

Main tasks of commissioning

campaign have been identified.

Duration of each task and

required manpower has been

evaluated.

The schedule of the

commissioning campaign has

been shown.