PepsiPFU Commissioning Observing - 20131203 UT

Observers: JStorm, IIlyin (LBTO), JHill (Tucson)
Telescope Operator: SAllanson (LBTO)

Summary

Details

Adjusting Both M3s against twilight sky

00:15 Open to sky at zenith

Images are in /home/lbto/data/20131203_pfu/

Image numbers below refer to BOTH sides

M3s in nominal collimation position
SX abs Tip=-400 Tilt=-400
DX abs Tip=-500 Tilt=-200

wfsc 0002 - 10s

SX center of M2 is at pixel 132,247
DX center of M2 is at pixel 169,246

Move both M3s by deltaTIP +1000 arcsec

wfsc 0003 - 10s

SX center of M2 is at pixel 145,247
DX center of M2 is at pixel 154,247

Move both M3s by deltaTIP +300 arcsec (net deltaTIP +1300)
SX Abs Tip=+900 Tilt=-400
DX Abs Tip=+800 Tilt=-200

wfsc 0004 - 10s

Move both M3s by deltaTILT +400 arcsec
SX Abs Tip=+900 Tilt=0
DX Abs Tilt=+800 Tilt=+200

wfsc 0005 - 10s
wfsc 0006 - 10s

WFS images of stars with hand guiding

00:32 Preset to a bright star in ACQUIRE mode on both sides and center pointing

00:38 Couldn't see faint star, so go back to the bright one

00:44 Preset to a bright star in ACQUIRE mode on both sides and center pointing

wfsc 0007 - 1s (rough alignment, don't use)

M3s in nominal collimation position
SX abs Tip=-400 Tilt=-400
DX abs Tip=-500 Tilt=-200

wfsc 0008 - 1s

Apply deltaTIP +450 to BOTH M3s (in steps of 50 arcsec while Steve follows with IE/CA). We ran into SX M2 X-limit when we went farther in this scheme.
SX abs Tip=+50 Tilt=-400
DX abs Tip=-50 Tilt=-200

wfsc 0009 - 1s

Quick adjustment of stage focus from 20.5 to 40.5 on both sides. Image on ACQUIRE display seems to move about 2 arcsec. No images were saved.

01:09 UT Hand telescope back to observers for reconfiguration to LBC

Daytime Analysis of Pupils

Improved parameters for 20131203 Pupil images:

  • RIGHT
    • WFS_lenslet_rotation 0.0
    • WFScam_hotspot_sext_x 33.0
    • WFScam_hotspot_sext_y 139.0
  • LEFT
    • WFS_lenslet_rotation 0.5
    • WFScam_hotspot_sext_x 36.2
    • WFScam_hotspot_sext_y 126.8

  • Left Lenslet Grid:
    left_lenslet_grid.jpg

  • Right Lenslet Grid:
    right_lenslet_grig.jpg

-- JohnHill - 03 Dec 2013
Topic attachments
I Attachment Action Size Date Who Comment
left_lenslet_grid.jpgjpg left_lenslet_grid.jpg manage 348 K 03 Dec 2013 - 20:14 DougMiller Left Lenslet Grid
right_lenslet_grig.jpgjpg right_lenslet_grig.jpg manage 344 K 03 Dec 2013 - 20:15 DougMiller Right Lenslet Grid
Topic revision: r2 - 03 Dec 2013, DougMiller
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