2011 March 09 UT Technical Night.
Plan
To be done:
- Check the Z4/Z11 relation now that the abovementioned changes have been made.
- Run dofpia with stringent limit criteria: dofpia, BlueLimit=10, RedLimit=10
- When convergence to the usual limits is reached: (z4,z5,z6, z11 <~ 250nm, z7,z8 <~ 400nm and z22 <~50nm) and the converged pupil image is reading out, send Z11 = +/- 1000nm. Note the before/after image numbers and allow a few more iterations, until it appears reasonably well-converged.
- Blue filter focus offsets need to be remeasured after this change to BlueZ22Zero.
- Redetermine the matrix elements M13 (Z4/Z22; currently 8.0) and M23 (Z11/Z22, currently 3.0):
- Follow above steps to check Z4/Z11 relation, but when the converged pupil image is reading out, send Z22 = +/- 200nm.
- Astigmatism has appeared to be oscillating in recent logs. Change AstigScale by about 60% (from 220 to 130) and test this change.
Log
Ran Skyflat Scaling OBs
Problem with SX: actuator force violated.
- 23000 and xxxxx are with collimation model
- 23142 and 23144 are with +1500 nm Z11 to see if SX forces are being applied despite error messages about actuators.
- Comparing 23000 and 23142 - Z11 did have an effect, so actuator forces are being applied.
Pointing - We were going to slew to a pointing star (ACT 284 but I mistyped 248). Andrew sent Z11 = -1500nm and SX panicked.
- Rebooted VXWorks and brought mirror back up. The scrolling "actuator force violated" messages stopped after this -
Pointing/Co-Pointing check
- ACT284
- Run dofpia here. Now we have BlueZ22Zero=1.8, Blue M12 element = -1.75 and Z4/Z11 in sendsph3 = -1.75
- 030809/030805 B/R images. Didn't notice R image coming up.
- 031157/031154. lbcrangebal
FPIA tests at ra=05:01 dec=+27:
- Seeing is above BadSeeingLimit.
- 20:24 send Z11 = +1000nm. 032527/032528 were taken immediately after. Converged again in <= 5 iterations (depending on criteria - seeing is 1.5-2").
- 033225 was converged (or one after convergence) and sent +1000nm Z11. Seeing is varying a lot from 1.1 to 1.5 or 2. Letting dofpia run.
- Stop with "S"
- dofpia,/X2,BlueLimit=10,RedLimit=10 to see if we get more consistent results with longer exposure times. 0359...are the first B/R images with 32sec OBs.
- after 42711 and 42713 sent Z11 = +1000nm.
- field was down to 46 deg, seeing was actually stabilizing... need to move to higher elevation field
FPIA tests at M67: ra=08:50:24 dec=+11:49:00
- Seeing was initially 0.95 but is drifting up to about 1.4-1.5"
Going to lbcrangebal at nearby pointing star,
- Slew to WT10_254.
- dofpia, X2 /newdata/lbcb.20110309.045916.fits is a poor fit
- notice that Blue appears to converge to a non-aberrated pupil and backs out very little at the end while Red converges to a spherically aberrated pupil and backs out ~-500 Z11 and +800 Z4 at the end.
- lbcrangebal:
----------------------------------------------
Old Delta New
------- ------- -------
CE -43.245 3.211 -40.034
CA -132.238 -0.602 -132.840
Back to M67
- dofpia, X2, RedLimit=10, BlueLimit=10
- send -1000 Z11 to Blue, to Red (failed because state not idle...although pupils look like they have -1000nm Z11) - this was after 051436/051435.
194 236 -12 -8 -95 -66 -3 y 1.31 0.14 /newdata/lbcb.20110309.051435.fits V-BESSEL
404 -60 -166 -344 66 438 11 y 1.46 0.37 /newdata/lbcb.20110309.051609.fits V-BESSEL
187 -59 -141 58 6 -57 -4 y 1.11 0.13 /newdata/lbcr.20110309.051436.fits r-SLOAN
-50 -103 332 -237 29 535 0 y 1.25 0.38 /newdata/lbcr.20110309.051611.fits r-SLOAN
- send -1000 Z11 to Blue, Red after 052740/052739
Work on Blue Z11 (because at the moment it is converging to a non-aberrated pupil)
-1050 0 0 0 0 600 0 y 0.00 0.00 dofpia_sph3_adjustment
820 311 -56 43 -13 -235 -26 y 1.12 0.38 /newdata/lbcb.20110309.055548.fits V-BESSEL
-171 -225 98 -32 -95 14 13 y 1.14 0.13 /newdata/lbcb.20110309.055727.fits V-BESSEL
876 0 0 0 0 -500 0 y 0.00 0.00 dofpia_sph3_adjustment
-875 0 0 0 0 500 0 y 0.00 0.00 dofpia_sph3_adjustment
109 -232 67 12 -40 -22 0 y 0.94 0.12 /newdata/lbcr.20110309.055545.fits r-SLOAN
63 108 -138 29 -20 -29 -9 y 0.94 0.10 /newdata/lbcr.20110309.055729.fits r-SLOAN
709 0 0 0 0 -405 0 y 0.00 0.00 dofpia_sph3_adjustment
- Notice after this change that the Z4 on Blu e is consistently positive on first iteration, ~400 nm. We change FocusAlphaBlue from 78 to 79.
- New dofpia run starts with 061136/061133.
Work on
BlueZ22Zero, which was 1.6 (before December 2010), changed to 2.3 in December, and earlier tonight was 1.8. Just now we
put it back to 1.6.
- Both Red /Blue converge well.
-1050 0 0 0 0 600 0 y 0.00 0.00 dofpia_sph3_adjustment
681 102 124 -80 21 -110 -29 y 1.28 0.29 /newdata/lbcb.20110309.063321.fits V-BESSEL
-236 -205 -112 -27 85 22 -10 y 1.26 0.15 /newdata/lbcb.20110309.063501.fits V-BESSEL
-184 -134 -80 18 -52 67 0 y 1.29 0.13 /newdata/lbcb.20110309.063640.fits V-BESSEL
962 0 0 0 0 -549 0 y 0.00 0.00 dofpia_sph3_adjustment
-875 0 0 0 0 500 0 y 0.00 0.00 dofpia_sph3_adjustment
566 -22 227 -113 20 -81 3 y 0.81 0.26 /newdata/lbcr.20110309.063318.fits r-SLOAN
-85 90 -166 164 16 -2 5 y 0.78 0.13 /newdata/lbcr.20110309.063502.fits r-SLOAN
47 -47 93 -85 7 25 12 y 0.83 0.10 /newdata/lbcr.20110309.063641.fits r-SLOAN
642 0 0 0 0 -366 0 y 0.00 0.00 dofpia_sph3_adjustment
- Extra/Intra focal pairs now: RB_rVexin4.ob 064035/064032 and 064106/064119
Looks like we got sphOffset wrong. Extra-focal pupil has large +ve Spherical (Z11) and Intra-focal has little hole.
- Run dofpia to converge and Andrew sends a Z11 = -250nm again. Run RB_rVexin4.ob now to take extra/intra focal pupil images:
065446/065443 and 065537/065530. inext_m250.jpg
- Run dofpia to converge and Andrew sends Z11 = -750nm. Next images are Ex/In focal pupils: 070858/070853 and 070947/070942
- change SphRedCorrection from -275 to +225 (original value)
- Run dofpia
- sent Z11 = -1000nm and take Ex/In-Focal pupils: 072550/072548 and 072639/072635
- sent also now Z22 = -200nm and take Ex/In-Focal pupils: 072820/072909 and 07820/72910
- Run dofpia
- Give Z11 = -1000nm and Z22 = +200nm.
- Ex/In-Focal pupils: 074407/074405 and 074455/074454
- Run dofpia
- Z11 = -500nm
- Ex/In-Focal pupils 075827/075824 and 075916/075913
- We changed SphRedCorrection from 225 to -25 and then ran dofpia
- Ex/In-Focal pupils (this generates another "reference" set with this new SphRedCorrection. 082235/082237 and 082324/082324
- Gave -500 nm Z11 and took Ex/In-Focal pupils 082646/082646 and 082740/082735
Slewing to new target: M53 RA=13:13 and DEC=18:25, elevation of M67 had dropped to 40, elevation 71 deg.
-1050 0 0 0 0 600 0 y 0.00 0.00 dofpia_sph3_adjustment
1304 793 -15 541 -99 -444 -100 y 0.94 0.68 /newdata/lbcb.20110309.083835.fits V-BESSEL
119 278 266 -272 -103 -114 -9 y 1.03 0.21 /newdata/lbcb.20110309.084015.fits V-BESSEL
-104 -123 310 -106 30 -76 10 y 1.04 0.15 /newdata/lbcb.20110309.084154.fits V-BESSEL
-222 137 -448 177 -142 64 5 y 1.03 0.21 /newdata/lbcb.20110309.084328.fits V-BESSEL
14 222 21 -325 71 37 -5 y 1.00 0.18 /newdata/lbcb.20110309.084502.fits V-BESSEL
419 -427 -183 214 -67 -87 -18 y 0.95 0.26 /newdata/lbcb.20110309.084637.fits V-BESSEL
-308 201 185 -215 144 62 12 y 0.98 0.21 /newdata/lbcb.20110309.084813.fits V-BESSEL
174 44 -240 497 10 -22 -29 y 0.99 0.26 /newdata/lbcb.20110309.084948.fits V-BESSEL
-75 -110 360 -294 -149 6 9 y 1.06 0.20 /newdata/lbcb.20110309.085125.fits V-BESSEL
821 0 0 0 0 -469 0 y 0.00 0.00 dofpia_sph3_adjustment
-1050 0 0 0 0 600 0 y 0.00 0.00 dofpia_sph3_adjustment
92 92 -317 112 -14 -22 7 y 1.13 0.14 /newdata/lbcb.20110309.085458.fits V-BESSEL
-171 214 172 -201 63 32 5 y 1.08 0.16 /newdata/lbcb.20110309.085635.fits V-BESSEL
836 0 0 0 0 -477 0 y 0.00 0.00 dofpia_sph3_adjustment
-875 0 0 0 0 500 0 y 0.00 0.00 dofpia_sph3_adjustment
-1244 103 -369 402 -28 -205 -49 y 0.73 0.56 /newdata/lbcr.20110309.083837.fits r-SLOAN
256 135 71 -360 54 -186 -29 y 0.73 0.24 /newdata/lbcr.20110309.084017.fits r-SLOAN
-193 102 61 127 -77 -46 -2 y 0.74 0.14 /newdata/lbcr.20110309.084153.fits r-SLOAN
118 -246 -179 3 96 5 -6 y 0.71 0.13 /newdata/lbcr.20110309.084330.fits r-SLOAN
-334 43 -23 -164 -57 80 -5 y 0.72 0.18 /newdata/lbcr.20110309.084503.fits r-SLOAN
234 71 147 -188 133 1 -12 y 0.76 0.17 /newdata/lbcr.20110309.084639.fits r-SLOAN
100 -70 -130 365 -136 59 2 y 0.77 0.20 /newdata/lbcr.20110309.084815.fits r-SLOAN
564 70 56 -116 171 -216 -5 y 0.66 0.29 /newdata/lbcr.20110309.084949.fits r-SLOAN
-227 -98 0 -42 -108 24 7 y 0.78 0.13 /newdata/lbcr.20110309.085127.fits r-SLOAN
611 0 0 0 0 -349 0 y 0.00 0.00 dofpia_sph3_adjustment
-875 0 0 0 0 500 0 y 0.00 0.00 dofpia_sph3_adjustment
-326 25 -93 147 257 165 10 y 0.88 0.23 /newdata/lbcr.20110309.085455.fits r-SLOAN
910 127 55 -167 -173 -152 -6 y 0.83 0.40 /newdata/lbcr.20110309.085636.fits r-SLOAN
640 0 0 0 0 -366 0 y 0.00 0.00 dofpia_sph3_adjustment
Slewing to M3: ra=13:42, dec=29:00 because M53 field has weak pupils, lower s/n and not so good for this work.
- Run dofpia. In 090715 is example of poorly fit pupil.
- Changed SphOffset from +588 to +338 (subtracted -250 --- -500 was indicated, but temperature difference on mirror and we give a conservative estimate.)
- First dofpia with new SphOffset=338 starts at 092529/092524
lbcrangebal: WT10_294
*no dofpia here because close by... 093357/093353
Sending the calculated optics offsets:
SX: dX = 0.027 dY = -0.146 dRX = -3.129 dRY = -0.576
DX: dX = -0.057 dY = 0.197 dRX = 4.236 dRY = 1.217
Creating proxy IRCL for LBC on prime left
----------------------------------------------
Creating proxy IRCR for LBC on prime right
----------------------------------------------
Old Delta New
------- ------- -------
CE -40.034 7.689 -32.345
CA -132.840 1.196 -131.644
Changed
FocusAlphaRed and
FocusAlphaBlue by -0.5. Now
FocusAlphaRed=77.5 and
FocusAlphaBlue=78.5
- Ran dofpia, forgot to slew back to M3.
- Slew to M3, run dofpia there. Starts at 094244/094245:
-1050 0 0 0 0 600 0 y 0.00 0.00 dofpia_sph3_adjustment
-225 153 645 96 128 -128 -9 y 0.90 0.25 /newdata/lbcb.20110309.094244.fits V-BESSEL
-30 -24 -324 19 58 -82 1 y 0.93 0.14 /newdata/lbcb.20110309.094424.fits V-BESSEL
-188 186 8 -217 -14 42 3 y 0.97 0.16 /newdata/lbcb.20110309.094602.fits V-BESSEL
771 0 0 0 0 -440 0 y 0.00 0.00 dofpia_sph3_adjustment
-875 0 0 0 0 500 0 y 0.00 0.00 dofpia_sph3_adjustment
571 -52 -144 -295 -269 -219 -9 y 0.50 0.33 /newdata/lbcr.20110309.094245.fits r-SLOAN
-160 -73 -106 404 281 -79 -5 y 0.52 0.25 /newdata/lbcr.20110309.094422.fits r-SLOAN
0 179 152 -367 -37 -90 -2 y 0.54 0.20 /newdata/lbcr.20110309.094604.fits r-SLOAN
463 0 0 0 0 -264 0 y 0.00 0.00 dofpia_sph3_adjustment
Saved current lbcfpia.cfg file (lbcfpia_20110309_a.cfg):
SphOffset = 338
SphRedCorrection = -25
FocusAlphaRed = 77.5
FocusAlphaBlue = 78.5
BlueZ22Zero = 1.6
RedZIMatrix = [[1.0,-2.4,-8.0],[0.0,1.0,3.0],[0.0,0.0,1.0]]
BlueZIMatrix = [[1.0,-1.75,-8.0],[0.0,1.0,3.0],[0.0,0.0,1.0]]
Filter focus offsets: 1000....
r-SLOAN:
Average best focus of 0.026477 with FWHM of 2.84
V-BESSEL:
Best focus at -0.05, but it was lower limit. Try again with center at 0.0
Filter focus offsets: 101532... I set the wrong starting value.
- r-SLOAN sequence -> Average best focus of 0.0367961 with FWHM of 2.82
Dofpia
Filter focus offsets 102615... yet again ran incorrect ob.
But r-SLOAN sequence -> best focus at 0.032926 with FWHM of 3.14
Dofpia
Ran superfoc sequence again, for V... 103915...
/newdata/lbcb.20110309.103915.fits[LBCCHIP2] at focus -0.12 with average FWHM of 7.06
/newdata/lbcb.20110309.103953.fits[LBCCHIP2] at focus -0.06 with average FWHM of 3.91
/newdata/lbcb.20110309.104032.fits[LBCCHIP2] at focus 0. with average FWHM of 3.77
/newdata/lbcb.20110309.104110.fits[LBCCHIP2] at focus 0.06 with average FWHM of 5.01
/newdata/lbcb.20110309.104147.fits[LBCCHIP2] at focus 0.12 with average FWHM of 9.17
Average best focus of -0.0238702 with FWHM of 3.65
dofpia
Ran superfoc sequence (RB_rV_medcoarse_superfoc.ob - as before, but edited to step through value close to bestfocus)
- Average best focus of -0.0177 with FWHM 3.52
Ran dofpia again
Science image after changing V-BESSEL (B) focus to -0.02 and r-SLOAN (R) focus to 0.031 (note that r-SLOAN focus did not need to be changed very much --- only from 0.035 ---- while V-BESSEL focus did: from 0.07 to -0.02.
- 110602/110557 Blue has 0.78" FWHM and Red has 0.66" FWHM in 30sec images.
Now we change
SphOffset to 838,
FocusAlphaBlue = 79.5 and
FocusAlphaRed = 78.5
Now alphas changed by +0.3:
FocusAlphaBlue = 79.8 and
FocusAlphaRed = 78.8
dofpia
Now alphas changed again, by 0.2:
FocusAlphaBlue = 80 and
FocusAlphaRed = 79
dofpia
Change alphaBlue to 80.3 (lbcfpia.cfg_20110309_d.cfg)
- dofpia: there is now a lot of oscillation. Changing alpha, and thus z4, requires a change in matrix value...
Going back to the configuration (as attached here) with
FocusAlphaRed=77.5 and
FocusAlphaBlue=78.5 and
SphOffset=338
- Converged quite quickly, from far off.
Z22 scaling:
- Run dofpia again (with "a" configuration)
- 12933/123935 are converged, dofpia exited, then we took an extrafocal pupil 124136/124134 (RB_rVfastextra)
- Send Z22 = +200 on both Blue and Red. RB_rVfastextra 124409/124407
- Run dofpia again. Take RB_rVfastextra: 125236/125237
- Send Z22 = -200 on both Blue and Red. RB_rVfastextra: 125419/125416.
Summary and Tasklist
- lbcfpia.cfg "a" configuration is good (but relatively small central hole).
- Work on a configuration which -> a bigger central hole and will converge quickly.
- Remeasure more filter focus offsets with "a" configuration.
- Need to change all filters in leftchannelfocus.dat and rightchannelfocus.dat... right really did not need any scaling but left did, by about -0.09mm.
--
OlgaKuhn - 09 Mar 2011