-- AlfioPuglisi - 12 Dec 2011

New Int Mat

Build using mirror modes for fernando's KL identification (51 iterations)

tracknum=20111210_205121

flattening

20111212_042531_flat660modes_ave60

KL verification

first test

flattening using the 51x opt int mat

there is a strange pattern given by a (possibly) strong reconstruction error on the spider. the forces increased a bit

datafill was found to off. put back to on (3 iterations)

Tracknum modes amp
20111212_052337 0-49  
20111212_052453 50-99 100
20111212_052558 100-149 80
20111212_052812 150-199 70
20111212_053019 200-249 50
20111212_053121 250-299 50
20111212_053221 300-349 40
20111212_053327 350-399 40
20111212_053433 400-449 30
20111212_053553 450-499 30
20111212_053656 500-549 30
20111212_053756 550-599 30
20111212_053901 600-649 30
fine 650-662  

Test of astigmatic shape

The elevation axis is stoppe since 20111212_000000 when rrh was mounted approx (verify...)

this means the no slewing is possible and the elevation astigmatism is no longer injected.

try to load old shapes (sampled at same astigm conditions, i.e. after 20111211) and observe the astigmatism. then re-flat
flat name OPD WFE noTT (ast only) dTime first flat dTime last slew notes
20111212_042531          
  20111212_140500_load_shape_20111212_042531 300nm      
           
20111212_143656 20111212_143656_flat660modes_ave60       iteration required to eliminate astig residual
20111212_150018 20111212_150018_flat660modes_ave60       iteration1
  20111212_150745_flat660modes_ave60       iter 2 tiny tref (temper + integr time)
  20111212_151627_flat660modes_ave120 18      
  20111212_195600_load_shape_20111212_042531.h5 410      
  20111212_195900_load_shape_20111212_151627 90      
20111212_200613 20111212_200613_flat660modes_ave200        
  20111212_213700_load_shape_20111212_042531 410      
  20111212_214400_shell_offloaded       only shell offloaded: any difference wrt other offloade OPD?
  20111212_215500_load_shape_20111212_042531        
  20111213_001100_load_shape_20111212_042531 417      
  20111213_002700_shell_rest       interesting! compare the astig after the elevation slew
  20111213_005100_shell_rest.h5        
           

comparison between *load_shape_20111212_042531 (same flat family, i.e same flat applied at different time

the astigmatism seems to be increasing: maybe the initial flat had a negative sign and we are going to saturate the correction. howeverm

New elevation slew

telescope is back zenith at 20111213_020100

test:
Flat name OPD WFE noTT dtime slew   notes
20111213_021348         to be applied at the next steps
  shell rippe        
  20111213_024300_load_shape_20111213_021348        
  20111213_024437_shell_rest        
  20111213_032800_load_shape_20111213_021348.h5        
  20111213_043700_load_shape_20111213_021348        
  20111213_051700_load_shape_20111213_021348        
  20111213_055000_load_shape_20111213_021348        
  20111213_062600_load_shape_20111213_021348        
  20111213_080100_load_shape_20111213_021348.h5        
  20111213_133700_load_shape_20111213_021348.h5        
  20111213_141200_load_shape_20111213_021348        
temperature was constant during the test: T=1+-0.25

Test i4d_piston

Tracknum pist4step n step first_act average type
20111213_060853 100e-9 10 14 3 tref
20111213_060929 100e-9 10 14,15 3 tref
20111213_140609 100e-9 10 126,127 25 tilt
           

Final Flattening

using fernando's intmat (20111210_20512), avetime=200, 20 images

20111213_143352
Topic revision: r10 - 08 Sep 2012, RunaBriguglio
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