Valentina Viotto M. Bergomi, C. Arcidiacono, L. Marafatto J. - - PowerPoint PPT Presentation

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Valentina Viotto M. Bergomi, C. Arcidiacono, L. Marafatto J. - - PowerPoint PPT Presentation

Dec 07, 2023 101 likes •494 views

Valentina Viotto M. Bergomi, C. Arcidiacono, L. Marafatto J. Farinato, R. Ragazzoni, M. Dima and the LINC-NIRVANA Team LBT NIR Imager equipped with L-O MCAO MFoV Light from LBT primary mirror LBT secondary deformable mirror 1 kHz Annular

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SLIDE 1

Valentina Viotto

  • M. Bergomi, C. Arcidiacono, L. Marafatto
  • J. Farinato, R. Ragazzoni, M. Dima

and the LINC-NIRVANA Team

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SLIDE 2

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

LBT NIR Imager equipped with L-O MCAO MFoV

11/04/2017, Padova

Light from LBT primary mirror LBT secondary deformable mirror Annular mirror GWS Z-config. deformable mirror MHWS Dichroic mirror Cryogenic IR camera 1 kHz 2 kHz Seeing reducer

GWS FoV: 2’- 6’ MHWS FoV: 2’

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SLIDE 3

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

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SLIDE 4

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

6 arcmin FoV Annular Mirror Ground layer Wavefront Sensor

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SLIDE 5

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

Delay line/Piston mirror Visible/NIR dichroic Science channel cryostat Deformable mirror

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SLIDE 6

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

High layer Wavefront Sensor K-mirror

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SLIDE 7

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

PC runs Com runs

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SLIDE 8

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

  • LN Internal Alignment

fine-tuning

  • LN Integration on the

telescope

  • Alignment of telescope to

LINC-NIRVANA

  • GWSs Interaction Matrices

calibration

  • A lot of debugging…
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SLIDE 9

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

  • LN Internal Alignment

fine-tuning

  • LN Integration on the

telescope

  • Alignment of telescope to

LINC-NIRVANA

  • GWSs Interaction Matrices

calibration

  • A lot of debugging…
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SLIDE 10

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

  • LN Internal Alignment

fine-tuning

  • LN Integration on the

telescope

  • Alignment of telescope to

LINC-NIRVANA

  • GWSs Interaction Matrices

calibration

  • A lot of debugging…
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SLIDE 11

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

  • LN Internal Alignment

fine-tuning

  • LN Integration on the

telescope

  • Alignment of telescope to

LINC-NIRVANA

  • GWSs Interaction Matrices

calibration

  • A lot of debugging…
slide-12
SLIDE 12

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

  • LN Internal Alignment

fine-tuning

  • LN Integration on the

telescope

  • Alignment of telescope to

LINC-NIRVANA

  • GWSs Interaction Matrices

calibration

  • A lot of debugging…
slide-13
SLIDE 13

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

  • LN Internal Alignment

fine-tuning

  • LN Integration on the

telescope

  • Alignment of telescope to

LINC-NIRVANA

  • GWSs Interaction Matrices

calibration

  • A lot of debugging…

Basically:

  • ARGOS calibration unit arm central reference fiber
  • Correct collimation position for LUCI nighttime
  • On LUCI1 AGW: minimize coma and center hotspot (M2)
  • Delta-Focus M2
  • Move M2-M3 in order to get, at the same time
  • On LN P-CAM: spot centered on the hotspot
  • On LN-HWS: center light on on-axis SE
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SLIDE 14

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

  • LN Internal Alignment

fine-tuning

  • LN Integration on the

telescope

  • Alignment of telescope to

LINC-NIRVANA

  • GWSs Interaction Matrices

calibration

  • A lot of debugging…
slide-15
SLIDE 15

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

  • LN Internal Alignment

fine-tuning

  • LN Integration on the

telescope

  • Alignment of telescope to

LINC-NIRVANA

  • GWSs Interaction Matrices

calibration

  • A lot of debugging…
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SLIDE 16

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

Push-pull method to compute the mapping between ASM modal basis (Karhunen-Loève) and GWS signals. Average of up to 15-20 Interaction Matrices to increase signal (100 modes)

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SLIDE 17

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

Automatic Rotating IM upload is needed

Sky rotates GWS de-rotator follows the sky rotation (to keep pyramids on the stars images) ASM is fixed (hopefully ) Relation between WFS sub- apertures and ASM actuators depends on the de-rotation angle

Static Setup Field de-rotation

Sky LBT Pupil F/15 FP Re-imaged Pupils

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SLIDE 18

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

  • LN Internal Alignment

fine-tuning

  • LN Integration on the

telescope

  • Alignment of telescope to

LINC-NIRVANA

  • GWSs Interaction Matrices

calibration

  • A lot of debugging…

HW:

  • Insufficient M2 illumination
  • Failure of DX Fast Link
  • CCD39 noise/behavior

SW:

  • Failure of DX Fast Link (no feedback)
  • Communication with ASM
  • Rotating matrices upload

Opal diffuser Replaced Temperature issue -> solved

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SLIDE 19

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

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SLIDE 20

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

  • Verification of Geometries
  • Measurements to get preliminary instrument

throughput

  • Testing and verification of auto-guiding

(including offset, auto-center)

  • Verification of GWS de-rotation trajectories

(both SX and DX)

  • Verification of SX K-mirror and science channel

de-rotation trajectories

  • single star acquisition with SX and DX GWS
  • single on-axis star acquisition with SX HWS
  • single star closed loop with SX GWS
  • multiple star acquisition with SX GWS
  • multiple star closed loop with SX GWS

Comparison: Pathfinder Scheduled: 14 half-nights Open dome: < 5 half-nights

  • very fractioned
  • Seeing: ~ 1’’- 3’’

Com-1 weather: Scheduled: 7 half-nights Open dome: 4 half-nights

  • Seeing < 1’’
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SLIDE 21

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

GWS entrance FoV and de-rotator HWS entrance FoV and K-mirror Science channel

  • Verification of Geometries
  • Measurements to get preliminary instrument

throughput

  • Testing and verification of auto-guiding

(including offset, auto-center)

  • Verification of GWS de-rotation trajectories

(both SX and DX)

  • Verification of SX K-mirror and science channel

de-rotation trajectories

  • single star acquisition with SX and DX GWS
  • single star closed loop with SX GWS
  • multiple star acquisition with SX GWS
  • multiple star closed loop with SX GWS
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SLIDE 22

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

  • Verification of Geometries
  • Measurements to get preliminary instrument

throughput

  • Testing and verification of auto-guiding

(including offset, auto-center)

  • Verification of GWS de-rotation trajectories

(both SX and DX)

  • Verification of SX K-mirror and science channel

de-rotation trajectories

  • single star acquisition with SX and DX GWS
  • single star closed loop with SX GWS
  • multiple star acquisition with SX GWS
  • multiple star closed loop with SX GWS
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SLIDE 23

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

  • Verification of Geometries
  • Measurements to get preliminary instrument

throughput

  • Testing and verification of auto-guiding

(including offset, auto-center)

  • Verification of GWS de-rotation trajectories

(both SX and DX)

  • Verification of SX K-mirror and science channel

de-rotation trajectories

  • single star acquisition with SX and DX GWS
  • single star closed loop with SX GWS
  • multiple star acquisition with SX GWS
  • multiple star closed loop with SX GWS
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SLIDE 24

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

  • Verification of Geometries
  • Measurements to get preliminary instrument

throughput

  • Testing and verification of auto-guiding

(including offset, auto-center)

  • Verification of GWS de-rotation trajectories

(both SX and DX)

  • Verification of SX K-mirror and science channel

de-rotation trajectories

  • single star acquisition with SX and DX GWS
  • single star closed loop with SX GWS
  • multiple star acquisition with SX GWS
  • multiple star closed loop with SX GWS
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SLIDE 25

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

  • Verification of Geometries
  • Measurements to get preliminary instrument

throughput

  • Testing and verification of auto-guiding

(including offset, auto-center)

  • Verification of GWS de-rotation trajectories

(both SX and DX)

  • Verification of SX K-mirror and science channel

de-rotation trajectories

  • Single star acquisition with SX and DX GWS
  • Single star closed loop with SX GWS
  • Multiple star acquisition with SX GWS
  • Multiple star closed loop with SX GWS
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SLIDE 26

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

  • Verification of Geometries
  • Measurements to get preliminary instrument

throughput

  • Testing and verification of auto-guiding

(including offset, auto-center)

  • Verification of GWS de-rotation trajectories

(both SX and DX)

  • Verification of SX K-mirror and science channel

de-rotation trajectories

  • Single star acquisition with SX and DX GWS
  • Single star closed loop with SX GWS
  • Multiple star acquisition with SX GWS
  • Multiple star closed loop with SX GWS
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SLIDE 27

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

  • Verification of Geometries
  • Measurements to get preliminary instrument

throughput

  • Testing and verification of auto-guiding

(including offset, auto-center)

  • Verification of GWS de-rotation trajectories

(both SX and DX)

  • Verification of SX K-mirror and science channel

de-rotation trajectories

  • Single star acquisition with SX and DX GWS
  • Single star closed loop with SX GWS
  • Multiple star acquisition with SX GWS
  • Multiple star closed loop with SX GWS
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SLIDE 28

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

  • Verification of Geometries
  • Measurements to get preliminary instrument

throughput

  • Testing and verification of auto-guiding

(including offset, auto-center)

  • Verification of GWS de-rotation trajectories

(both SX and DX)

  • Verification of SX K-mirror and science channel

de-rotation trajectories

  • Single star acquisition with SX and DX GWS
  • Single star closed loop with SX GWS
  • Multiple star acquisition with SX GWS
  • Multiple star closed loop with SX GWS
slide-29
SLIDE 29

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

  • Verification of Geometries
  • Measurements to get preliminary instrument

throughput

  • Testing and verification of auto-guiding

(including offset, auto-center)

  • Verification of GWS de-rotation trajectories

(both SX and DX)

  • Verification of SX K-mirror and science channel

de-rotation trajectories

  • Single star acquisition with SX and DX GWS
  • Single star closed loop with SX GWS
  • Multiple star acquisition with SX GWS
  • Multiple star closed loop with SX GWS

P-Cam

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SLIDE 30

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

  • Verification of Geometries
  • Measurements to get preliminary instrument

throughput

  • Testing and verification of auto-guiding

(including offset, auto-center)

  • Verification of GWS de-rotation trajectories

(both SX and DX)

  • Verification of SX K-mirror and science channel

de-rotation trajectories

  • Single star acquisition with SX and DX GWS
  • Single star closed loop with SX GWS
  • Multiple star acquisition with SX GWS
  • Multiple star closed loop with SX GWS
slide-31
SLIDE 31

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

  • Verification of Geometries
  • Measurements to get preliminary instrument

throughput

  • Testing and verification of auto-guiding

(including offset, auto-center)

  • Verification of GWS de-rotation trajectories

(both SX and DX)

  • Verification of SX K-mirror and science channel

de-rotation trajectories

  • Single star acquisition with SX and DX GWS
  • Single star closed loop with SX GWS
  • Multiple star acquisition with SX GWS
  • Multiple star closed loop with SX GWS
slide-32
SLIDE 32

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

  • Verification of Geometries
  • Measurements to get preliminary instrument

throughput

  • Testing and verification of auto-guiding

(including offset, auto-center)

  • Verification of GWS de-rotation trajectories

(both SX and DX)

  • Verification of SX K-mirror and science channel

de-rotation trajectories

  • Single star acquisition with SX and DX GWS
  • Single star closed loop with SX GWS
  • Multiple star acquisition with SX GWS
  • Multiple star closed loop with SX GWS
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SLIDE 33

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

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SLIDE 34

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

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SLIDE 35

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

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SLIDE 36

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

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SLIDE 37

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova

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SLIDE 38

Valentina Viotto – ADONI Workshop 2017 11/04/2017, Padova