2011-08-04 (UT)
===============

Program: CL4 (YSOs, PI: Kraus)

Observers: Stefan, Chris, Nic

TEL.: S2-E2-W1-W2
POPs:  1- 1- 4- 3
BEAM:  1- 3- 2- 2


LT 20:35 = UT 03:35 = LST 16:33

humidity 5%


*** S2-E2-W2

Laser spot on S2 is far off (does not appear in the center of the ACQ image)

UT 03:30 - HD177433  (for setup)
   	   found fringes at S2=+0.788, E2=+0.219, 

UT 04:05 - HD178379 (CAL1 for MWC614)
   	   telescopes do not move correctly
	   tip-tilt on S2 behaves in a strange way, we get strong negative numbers, even after debiasing
	   numbers do not increase significantly if we open M5 and get the star in
	   there seems to be an alignment problem
UT 05:10 - SOLUTION: FLUOR was observing an extremely bright star,
   	   which created leakage on the nearby S2 pixel
	   (FLUOR observed Vega V=0 mag, we observed V=8.8 mag)
UT 05:20 - recording 1000Hz/LONG/NON-DEST, S2=+0.814 mm, E2=+0.221 mm
   	   relatively low SNR on B12 and B31

UT 05:30 - MWC614 (HD179218)
   	   recording 1000Hz/LONG/NON-DEST, S2=+0.815 mm, E2=+0.222 mm
	   fringes move around quite a bit, but all three fringes are there sometimes

UT 05:45 - HD178379 (CAL1 for MWC614)
   	   recording 1000Hz/LONG/NON-DEST, S2=+0.820 mm, E2=+0.219 mm
	   r0=3-4cm  (for FLUOR with a brighter star slightly higher 7-9 cm)

	   the beam ratios are quite asymmetries, go back to bright star for NIRO ALIGNMENT !!!

UT 06:05 - HD178379 (CAL1 for MWC614)
   	   recording 750Hz/LONG/NON-DEST, S2=+0.828 mm, E2=+0.217 mm
	   much better quality than the bracket before

UT 06:15 - MWC614 (HD179218)
   	   recording 750Hz/LONG/NON-DEST, S2=+0.830 mm, E2=+0.212 mm
	   nice fringes!

UT 06:?? - HD178379 (CAL1 for MWC614)
   	   recording 750Hz/LONG/NON-DEST

UT 06:40 - MWC614 (HD179218)
   	   recording 750Hz/LONG/NON-DEST, S2=+0.841 mm, E2=+0.212 mm

UT 07:00 - HD178332 (CAL2 for MWC614)
   	   recording 750Hz/LONG/NON-DEST, S2=+0.842 mm, E2=+0.212 mm
	   had to reset delay line in the middle of the scan

	   new region in sky, do NIRO ALIGNMENT on HD196134 !!!

UT 07:10 - HD194708 (CAL1 for MWC340)
   	   recording 750Hz/LONG/NON-DEST, S2=+0.770 mm, E2=+0.220 mm

UT 07:45 - MWC340
   	   recording 750Hz/LONG/NON-DEST, S2=+0.782 mm, E2=+0.202 mm
	   fringes on all three baselines

UT 08:27 - HD194708 (CAL1 for MWC340)
   	   recording 750Hz/LONG/NON-DEST, S2=+0.777 mm, E2=+0.205 mm
	   lost S1 (beam 1) during the final shutter sequence (BEAM 1)

UT 08:45 - MWC340
	   cannot acquire S2
   	   recording 750Hz/LONG/NON-DEST, only beam 23 (E2-W2)

UT 08:55 - HD195988 (CAL2 for MWC340)
   	   recording 750Hz/LONG/NON-DEST (all three beams)


*** S2-E2-W1

UT 09:15 - HD177433  (for setup)
   	   cannot find fringes
	   checking carts

UT 09:45 - HD196134 (fringe finding)
   	   found fringes at S2=+0.683, E2=+0.09
   	   
UT 10:10 - HD194708 (CAL1 for MWC340)
   	   recording 750Hz/LONG/NON-DEST, S2=+0.669 mm, E2=+0.068 mm

UT 10:35 - MWC340
	   search for fringes, can only find beam 23 (E2-W1)
   	   recording 750Hz/LONG/NON-DEST, S 2=+0.669 mm, E2=+0.046 mm

UT 11:25 - HD194708 (CAL1 for MWC340)
   	   recording 750Hz/LONG/NON-DEST, S 2=+0.641 mm, E2=+0.051 mm
	   redoing NIRO ALIGNMENT!
   	   recording 750Hz/LONG/NON-DEST, S 2=+0.630 mm, E2=+0.049 mm

--------------------

useful data:

MWC614 (3 brackets on S2E2W2)
MWC340 (1 bracket on S2E2W2, 1 bracket on E2W2, 1 bracket on E2W1)