2011-06-28 (UT)
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Program: CL6 (YSO Imaging, PI: Millan-Gabet et al.)

Observers: Rafael, Chris

(S1S2E1E2W1W2: 5-1-1-1-2-5)

CLIMB on beam 1,2,3

Start with:

B1  B2  B3
----------
S1  W2  E1   (W2=REF)

LT  - 20:30

*** S1W2E1, W2=ref.

new configuration this run.

humidity 10-20%
r0 = 4 cm - fast piston, poor seeing 

LT  - 20:30

NIRO ALIGN on delta Sco = HD143275
found fringes at +2600 um / +4300 um

go for HD142666 since last time at this baseline we only got 1 bracket ...

500HZ NONDEST MEDSCAN

21:20 cal HD148211
redo NIRO ALIGN
boy, for a cal these fringes look awful ... bad seeing?
note: yesterday i made the same comments ... hope not a bad cal ...
     +2700um/+4200um
     counts ~ 30
     vis ~ 0.3

21:38 trg HD142666
      +2600um/+3900um
      cunts ~ 30 - i think last time we had double counts ...
stopped after ~150 scans ... taking too long ... need something easier
      for this seeing ...

go for HD141569 = CHARA 178551

22:00 cal HD142072
NIRO ALIGN
     +2200um/+3500um
     counts ~ 50
     vis ~ 0.2 - 0.4

22:20 trg HD141569
      same offsets
      counts ~ 

22:38 cal HD141247
      +2300um/+3300um
      counts ~ 30 - 40

22:45 trg HD141569
      +2300um/+3300um

23:00 cal HD142072
      +2300um/+3200um

23:16 trg HD141569
      +2300um/+3100um

23:40 cal HD141247
      +2400um/+3000um

these data were better than the HD142666 attempt (higher el), but
still pretty poor calibrator fringes ...

23:50 change telescopes

S1E1W2 (POPs 515) - longest baseline.
W2 = REF

go for v1295 Aql = HD190073

750Hz NONDEST MEDSCAN

00:30 cal HD188385
NIRO ALIGN
     +2100um/+3700um
     counts ~ 50
     vis ~ 0.5
much better seeing at this higher elevation ...

00:45 trg v1295aql
      +2100um/+3700um
      counts ~ 70
      vis ~ 0.1 
nice tiny fringes ... 

01:00 cal HD188385  
      +2100um/+3600um

move REF 

01:14 cal HD188385
      +2150um/+3500um

01:19 trg v1295aql
      +2200um/+3500um
      +2200um/+3500um

01:45 cal HD189509
      +2200um/+3500um
      
01:58 trg v1295aql
      +2250um/+3500um
stopped after 100 good scans so i have time for cal before the
      scheduled power outage ...

02:13 cal HD189509
      +2200um/+3400um

change to config:

S2E2W2 (POPs 115) (looking North)
W2=REF

planned scheduled power outage: 30sec starting at 02:30am.
stop observing and start prep at 02:19.
power came back on quickly, but then went out again until 02:44.
telescopes tracking a star again at: 03:15.

go for CygOB9 = CHARA 320137 for FLOUR Team (Absil).

NIRO align on HD195647

S2 oscillating ... seems to have calmed down ...

1000Hz NONDEST MEDSCAN

03:45 cal HD195647
      +7700um/+2800um
      counts ~ 90
      vis ~ 0.4

03:50 trg CygOB9
having some difficulty acquiring on S2 ...
       +7700um/+2700um
       counts ~  
       vis ~ 0.4 / 0.2 / 0.2

03:10 cal HD195647
      +7700um/+2600um
      counts ~ 70
      
04:20 trg CygOB9
      +7750um/+2600um
       counts ~ 50 
       vis ~ 0.4 / 0.2 / 0.2

04:30 cal HD202312
      +7700um / +2700um
      counts ~ 20 - this seems faint and resolved?
      vis ~ 0.3 - 0.4 - maybe OK?

repeat the other cal:

04:35 cal HD195647
      +7700um/+2500um

04:50 DONE.

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Summary:

HD142666: 1 incomplete bracket. very poor seeing at low el.
HD141569: 3 brackets.
v1295 Aql: 3 brackets.
CygOB9: 2 brackets.

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