Startup Night 5 - 20140903 UT
Observers: JHill, BRothberg (LBTO), OKuhn, TGolota, AConrad (Tucson)
Telescope Operator: GBechetti (LBTO)
AO Support: JCGuerra
Telescope Support: MWagner, JLittle (LBTO)
Software Support:
MDeLPena
Instrument Support: ESolheid (LBTO)
Engineering Support: DAshby
Summary
Photometric skies, with seeing varying from 0.45 to 1.2 arcsec during the night.
Non-Sidereal Guding with MODS1
This evening we conducted a successful test of using guide stars
with MODS1 to track 3 asteroids moving relative to the fixed stars.
To guide for the asteroid, GCS has to move the guide probe with a
reflex motion in the opposite direction. We did 3 asteroids: 49 Pales
moving at 7 arcsec/hour, 80 Sappho moving at 27 arcsec/hour and 1943
Anteros moving at 114 arcsec/hour. We also took a MODS1 spectrum of
1943 Anteros.
Thanks to Geno, Barry, Olga, Al and Taras who assisted. While this was
a great success, it wasn't quite perfect. The asteroid has a sawtooth
jitter with an amplitude of about 2 arcsec. I'm about 80% sure I know
the explanation for this jitter.
AGW1 wake-up
Summary:
The AGW1 wake-up has gone fine tonight, so from the AGW1 perspective
we are ready to have LUCI1 mounted tomorrow.
Details:
We fought with AGW1 and oacserver for about 45 minutes with
the usual sort of RPC errors and Network errors. Once we got that
straightened out, everything was fine. The AGw1 gave 0.5 arcsec images
right off the bat. I've adjusted the probe to the rotator center,
and am now collecting data for Doug to measure the pupil position.
WRS testing with LBC
We got 2 hours of WRS testing. We did get it to converge to decent images on Red, but there are still some issues related to the rotation of astigmatism and trefoil.
Preparations
New version of IIF - to update collimation zernike LUT on preset. v8.26a
New version of PSF - to use the last good temperature for collimation. v6.7b
Running GCS v2.17.4 for MODS1 NS guiding
Details
01:54 UT (and earlier) - Testing LBC - bias, test images, darks.
01:55 UT - Getting ready to open
02:10 UT - Waking up MODS, Enclosure open
02:16 UT - Taking Sieve mask snaps
02:25 UT - collimating
Asteroid 49 Pales
Hijacked NS ACTIVE preset to asteroid 49 Pales with guidestars from Pales_20140903_0300.catalog. rate=7 arcsec/hour
02:37 UT - test exposures for MODs w/non-sidereal - seeing 1.3" via Guider
02:43 UT - taking series of 10 x10sec exposures in g and r with MODS
Details for sending the NS preset
See NonSiderealGuiding
Asteroid 80 Sappho
Hijacked NS ACTIVE preset to asteroid 80 Sappho with guidestars from Sappho_20140903_0300.catalog. rate=27 arcsec/hour
02:52 UT - moving to a faster asteroid - stopped blue at 0010, red at 0011 (0011 is bad - telescope is moving)
02:55 UT - starting series of 10exposures for Sappho
03:01 UT - stopped red at 16 and blue at 15
03:02 UT - changing to shorter exposure time (3sec blue and red)
03:03 UT - resent presets and non-sidereal, 0018 (red) and 0017 (blue) are streaked (unusable)
03:15 UT - Starting another set of 10 exposures (blue and red, 0027 & 0028, respectively)
03:25 UT - left preset cancelled - but still in set of 10 exposures
03:27 UT - Finished 2nd set on Sappho (don't use blue 0036 and red 0037 - telescope moved while integrating)
Asteroid 1943 Anteros
03:28 UT - Hijacked NS ACTIVE preset to 1943 Anteros, rate = 114 arcsec/hour
03:33 UT - on target - taking test 30sec exposure (0037 blue, 0038 red) - saturated asteroid -switching to 10sec
03:37 UT - 0038 blue, 0039 red 10sec each - red saturated, blue counts at 30k - going to 5sec each
03:39 UT - 0039 blue, 0040 red - 5sec - looks good
03:41 UT - 15exposures, 5sec each blue (0040) and red (0041) started - seeing 1.3" Guider, 1.1" DIMM - did not do IMCS lock again - this may have caused jumps before
03:58 UT - starting second set of 15 exposures blue & red (g and r)
04:18 UT - guiding stopped
04:21 UT - restart guiding - will attempt spectra of asteroid 1943 Anteros with 1.2" slit dual
04:31 UT - 1.2" dual grating spectra of 1943 Anteros - 600sec in blue and red
04:44 UT - faint continuum seen in red side - taking thru-slit image
04:49 UT - did not see asteroid in thru-slit - taking field image
04:55 UT - aligned on wrong target - reacquired correct object (asteroid)
04:56 UT - taking another 600 sec dual 1.2" spectrum of asteroid to test sidereal tracking long term
04:57 UT - lost guiding - stopped integration
05:00 UT - sending new preset with 0500 ephemeris
05:12 UT - acquired on asteroid - trying another 600sec dual (0080 red, 0072 blue)
05:26 UT - taking thru slit image to check (red 0081)- slipped from Y=1682 to Y=1677
05:28 UT - taking field images (red 0082, 0083, 0084, 0085) to check it matches thru-slit and Y position of spectra
05:34 UT - field images show slight jitter, but asteroid appears to have remained in the slit for the most part
05:43 UT - Switching to test AGW1
AGW1 wake-up at LFBG
Authorize failed because SX M3 wasn't initialized.
Lots of problems getting AGW1 and GCS to communicate.
06:20 Cold boot of agw-control0
06:25 Call Taras - still another restart of oacserver does the trick.
06:32 ACQUIRE preset succeeds IE=-54 CA=-32
06:36 ACTIVE preset to BS9183 gs=0 - collimation succeeds at 0.45-0.5 arcsec FWHM on the guider.
06:43 ACTIVE preset to BS9183 gs=5 (mag=15) - off-axis image was immediately 0.5 arcsec.
AGW1 hotspot to rotator center alignment
http://wiki.lbto.org/bin/view/Commissioning/BGTechProcedures
data directory is /home/lbto/data/20140903_agw1
06:47 ACTIVE preset to BS9183 gs=0
stop guiding
rotator to 0
ptincrement 0 IE 5
setxy -u 1 -x 0 -y 612.5
rotator to 360
readGuideCam left -e 80000 left_guider000002.fits center is 113,66 (binned by 2)
ccdsec1 is 8:260, so add 8,15 --> 121,81, multiply by 2 --> 242,162
[telescope@agw-control0 ~]$ getxy -u 1 -o 16
Guide probe position
x: -1.000000
y: 1001660.000000
getHotspot left
Hotspot is (x,y): 255.00, 230.00
Is the hotspot correct? No, spots are at the bottom of the field stops. So we need to adjust hotspot......while guiding continues.
setHotspot left -x 255 -y 200 -- thats too high in wfsc 0315 (more negative y moves the star image up on wfsc)
07:16 setHotspot left -x 255 -y 215 -- just a hair low in wfsc 0321
07:19 setHotspot left -x 265 -y 215 (more positive x moves the star image left on wfsc)
07:22
setHotspot left -x 260 -y 214 which looks OK in wfsc 0328 THIS IS THE NEW HOTSPOT.
Want to increase star image by 18 pixels in X = 0.9 arcsec = 0.5 mm, so decrease ROT homeoffset by 30
Want to increase star image by 50 pixels in Y = 2.5 arcsec = 1.5 mm, so decrease RAD ooffset by 1500
as agwuser
vi oacontrol.conf
stop GCS
rdwrconfig -u 1
call failed: RPC: Timed out
rdwrconfig: rdwrconfig failed (AGW1: RPC Communication Error)
(probably because Geno restarted GCS too quickly)
07:43 stop and restart oacserver, AGW1, GCS
Editted new hotspot into LUCI_L.cfg
07:47 ACTIVE preset to BS9183 gs=0
stop guiding
rotator to 360
setxy -u 1 -x 0 -y 612.5
rotator to 0
readGuideCam left -e 80000 left_guider000003.fits star is a point at 121,89 --> 129,104 --> 258,208
ptincrement 0 IE 5
rotator to 360
readGuideCam left -e 80000 left_guider000004.fits center 121,87 so add 8,15 --> 129,102, multiply by 2 --> 258,204
We are calling this good.
08:05 ACTIVE preset to
StoneA1 gs=0 - no star found
Adjusted pointing, still no star found for
StoneA1. ???
iif_register, /TCS
08:13 ACTIVE preset to
StoneA2 gs=0
08:14 transform_collect for
StoneA2_new
silly John, you can't take transform data without LUCI......................
Field Aberration Data on BS9107
IDL does not have the Hotspot or Pupil Positions updated, but this data set will let Doug measure the pupil positions.
08:18 field_collect on BS9107 - acquisition missed
08:21 ACQUIRE preset to adjust pointing
08:23 field_collect on BS9107 BS9107_new field list
Seeing is about 0.9 arcsec on guider, but wfs rms variations are around 100, so local seeing must be small.
Seeing is degrading as this data set goes on, then improving again near the end.
#| GStar | wfsc # |
201493
BS9107_new_field
wfsc
GCS
0 |
368-370 |
23 |
371-373 |
0 |
374 |
28 |
375-377 |
0 |
378 |
36 |
379-381 |
0 |
382-383 |
33 |
384-386 |
0 |
387-388 |
18 |
389-391 |
0 |
392-393 |
39 |
394-396 |
0 |
397-398 |
24 |
399-401 |
0 |
402-403 |
42 |
404-406 |
0 |
407 |
20 |
408-410 |
0 |
411-412 |
50 |
413-415 |
0 |
416-417 |
39 |
418-420 |
0 |
421-423 |
43 |
424-426 |
Sending a couple presets to get off the Y-axis pupils
09:23 BS9107 gs=43 PA=-20 121.8,123
09:25 BS9107 gs=43 PA=68 -119,5,126.1
WRS Tests with LBCs
09:29 To zenith for reconfiguration to LBC on both sides.
09:51 LBC preset to WT10_342
WRS notes are on the WRS wiki page.
LBC Standards (or are they sky flats?)
Sky is photometric, but getting bright. Blue is not well collimated.
12:04 Galadi1_4p_Vgr -- mainly to see if the rotator is OK. Sky is getting bright. Only Blue images.
12:09 Galadi1-UBVRI (stopped halfway through)
Close
12:16 Close for impending dawn
12:17 1 pair of bias frames.
-- %BUBBLESIG{BarryRothberg - 2014-09-03}%