22:00 we try to check the LAN optics quality looking at a NGS on a GE1350 camera installed in the LAS box. After focussing we have a 2.5" astigmatic spot when the natural seeing is about 0.8".

22:30 the camera is removed, we are back to Zenith, a double window is installed in the laser tube to compesate for the astigmatism

TN	Notes
20140518_060354	LGS on PatCams, spot sigma is about 10px

There are many clouds...

AdSec problems we remove actuator 373.

00:25 laser propagation, 2 cloud layers:

TN	Notes
20140518_072715	2 cloud layers
20140518_075947	"

01:06 we try a closed loop on ARGOS yellow pupil, running at 200Hz, jitter loop closed, 2us of opening time.

We have a problem with M1 offloading, it moves out the LGS from the sensor FoV.

Clouds are increasing, we try to run at 100Hz.

TN	Notes	No TT Res [nm wf]	Modalplot
20140518_083211	ARGOS yellow CL, 20 modes, noTT, 100Hz	251
20140518_083235	"	296
20140518_083312	"	296

We move the LAN focus at -110k, we close jitter and pupil loops:

TN	Notes	No TT Res [nm wf]	Modalplot
20140518_084557	ARGOS yellow CL, 20 modes, noTT, 100Hz	414
20140518_084612	"	392
20140518_084722	"	379

we scan the ToF, 85us minimizes the slopes rms...

we try again with 20 modes:

TN	Notes	No TT Res [nm wf]	Modalplot
20140518_084814	ARGOS yellow CL, 20 modes, noTT, 100Hz	309
20140518_084918	"	270
20140518_084948	"	301
20140518_092346	ARGOS OL	679

We try to put the Red LGS into the Yellow one. It is a mess! We go back to Yellow in Yellow...

TN	Notes
-	ARGOS yellow CL, 20 modes, noTT, 200Hz, 3us opening time
20140518_100211	ARGOS OL, many clouds
20140518_100235	clouds
20140518_101300	clouds

04:00 LAN flexures lookup table: http://aowiki.arcetri.astro.it/bin/view/ARGOSPublic/LanLookupTable