DX Field Data - 20140425 UT
Observers: JStorm, IIlyn (LBTO)
Telescope Operator: DHuerta (LBTO)
AO Support:: DMiller (Tucson)
Telescope Support:: JUrban (LBTO)
Instrument Support:: JMorris (LBTO)
Engineering Support: DAshby (Tucson)
Verified that the flexure is very low. Tried to verify that the StepFocus
command behaved as expected after modification applied in January (IssueTrak
\#5000), but found a new problem. A sign has changed?
02:05 Handover from OSU/RC, seeing about 0.8arcsec, clear skies, 12m/s wind Problem with the SX swing arms switching from LBC to PEPSIPFU.
02:51 Problem has been resolved. Problem with M2 on DX
03:09 Presetting to HIP76984, way out of focus. 200micron fiber
03:11 Switched to 100micron fiber. We do the presetting and hotspot offset test from yesterday with the modified software
03:12 BS1, ND0, 100micron, still problem getting proper status on filterwheel position
03:15 Switched to BS2, ND0, 100micron Went quickly to the proper position. Seems that the software does the right thing.
03:17 Switched to BS3, ND0, 100micron. Also went quickly to the proper position. The WFS on DX was significantly brighter for a while.
03:23 Switched to BS4, ND0, 100micron. Also went quickly to the proper position. The WFS on SX is now brighter...
03:27 Switched to BS5, ND0, 100micron. Also went quickly to the proper position even if DX had to catch up over few more iterations.
03:37 Switched to BS1, ND0, 100micron. For flexure test. ZD: 26deg
03:39 Go to: BD+86 184, G5, ZD:56; BS1, ND0, 100micron Hotspot SX:(366,377), DX:(341,370)
03:52 Changed to BS2. Hotspot: no significant change, Seeing 0.9, 1.1
03:55 Changed to BS3. Hotspot: no significant change
03:57 Changed to BS4. Hotspot: no significant change ZD:56deg
03:59 Changed to BS5. Hotspot: no significant change
04:02 Preset back to HIP76984 with BS1
- M2 DX problems
- Through focus test
- Problems with AGw7 communication
04:24 Repeat preset, FWHM 0.7, 0.8arcsec. Through focus sequence on DX/\. Again we have a problem with coordinating the focus offset of M2 and of the WFS. Ilya uses M2 now, but this does not seem to be correct. Changed the flag to M1M2
04:39 Defocus by +2mm, now using M1M2
flag for StepFocus
. Crashed the M1.
04:59 Redid the preset again using M1M2
on DX +0.5mm. The StepFocus
appear to work correctly, but it is not what we wanted to do.
05:04 Send the defocus (+0.5mm) using the M2 flag instead. Stopped reporting Zernikes to avoid confusion. It seems like the sign is wrong in the M2 offset w.r.t. AGW focus stage.
05:08 Zernikes off on both sides. Do the same offset on the SX side.
05:14 +0.5mm on DX (reaches 32mm), the +0.5mm to SX (reaches 31mm)
05:20 Closed down to twilight