UT 2010-Jul-13
==============
Program CL3, PI Kraus

Observers: Fabien, Rafael, Chris

CHARA/CLIMB
TEL       E1-E2-W1-S1
POP       1-4-4-1

TRIPLET   E1-E2-W1  (start-up)
BEAM      B1-B2-B3
REF CART  E2

Starting
LT 12 July 2010, 20:30 
Weather: clear, very windy, r0 = 3 to 5 cm

Check star 

Target MWC275
Cal 


NIRO ALIGN on 7 Sco

20:43 -5152/22135
20:59 -4725

W1 stuck and probably lost as we cannot frind fringes any more
Auto acquisition picked the wrong target in W1

LT 21:35
      -4232 / 23909
      recording fringes at 500Hz/DEST
      Vis: 0.51/0.31/0.20
      Counts: 40/50/30
21:48 -4122/24149
22:01 switching to target, changing ref
      cannot find fringes
      switch to more recent cal 156365
22:29 -4479/22999
22:32 recording fringes at 250Hz/DESTRUCT
      Vis:0.47/0.32/0.23
      Counts:45/45/30
      r0 = 4 cm
22:45 -4350/23300
      
23:01 switching to target MWC275
      -4700/?????
      recording 2T (e1e2) fringes at 250Hz/DEST
      we scanned manually over the expected fringe location for E1W1 and E2W1
      Counts:70/70/70
23:40 switching to cal 159743
      out of delay....
0:05 getting target data again / trying to find fringes 

     Switching to E1E2S1
NIRO align on gamma cyg

     scan on 194708 (cal for MWC340) 
1:35 E2S1 -1630/-5497
1:42 recording fringes at 500Hz/DEST 
     -1707/-5274
     Vis:0.48/0.31/0.23
     Counts:50/50/50
1:49 -1628/-5204
[...]
Attempted MWC340 but too faint for tip/tilt in these r0 conditions
Other bright targets are not in delay

2:30 
     Backup target WR140
     NIRO align on calibrator 192985
2:42 -1038/-4428
     recording fringes at 500Hz/DEST
     Vis:0.50/0.47/0.33
     Counts:170/155/116
2:45 -984/-4422
2:54 -924/-4333
2:58 -969/-4358
     recording fringes on WR140 at 500Hz/DEST
     Vis:0.24/0.22/0.22
     Counts:184/133/112
3:04 -929/-4256
3:12 recording fringes on 192985 at 500Hz/DEST
     -793/-4073
     Vis:0.45/0.38/0.29
     Counts:143/156/111
3:18 -739/-3986
3:28 recording fringes on WR140 at 500Hz/DEST
    -745/-4030
    Vis:0.38/0.19/0.15
    Counts:160/120/95
3:33 -699/-3938
3:42 recording fringes on 192985
     -565/-3775
     Vis:0.51/0.34/0.27
     Counts:125/135/105
3:46 -500/-3700
3:55 recording fringes on WR140 at 500Hz/DEST
     -509/-3621
     Vis:0.39/0.21/0.16
     Counts:130/105/100
4:00 -480/-3500
4:05 new calibrator from searchcal HD 197037
     -575/-3699
     recording fringes on HD187037 at 500Hz/DEST
     Vis:0.50/0.30/0.30
     Counts:70/70/60
4:16 -536/-3594
     recording fringes on WR140 at 500Hz/DEST
     -240/-3324
     Vis:0.38/0.22/0.16
     Counts:0.35/0.25/0.15
4:33 cal HD184875
     recording fringes on cal HD 184875 from Ajay's list at 500Hz/DEST
     387/-2609
     Vis:0.42/0.26/0.21 
4:45 435/-2530
4:53 recording fringes on WR140 at 500Hz/DEST
     63/-3030
     Vis:0.40/0.26/0.20
     Counts:90/110/95
4:59 100/-2920
5:08 270/-2820
     recording fringes on HD192985 at 500Hz/DEST
     Vis:0.54/0.43/0.31
     Counts:104/142/80
5:
     
          

Summary
-------
Lots of piston due to strong winds during all the night.
Could not get 3T data on MWC275

MWC275 data on E1E2 (2T, half bracket).

As W1 cannot currently lock tip/tilt on our north targets, we switched to E1E2S1 instead of the planned S1E2W1.
Could not get a tip/tilt lock on our brightest program target, so we had to settle for a backup target, WR140.

WR140, data on E1E2S1 (5 brackets)