2011-06-29 (UT)
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Program: CL6 (YSO Imaging, PI: Millan-Gabet et al.)

Observers: Rafael, PJ

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

CLIMB on beam 1,2,3

Start with:

B1  B2  B3
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S1  W2  E1   (W2=REF)

*** S1W2E1, W2=ref.
main goal: try MWC275 with this configuration.

humidity 30-50%
r0 =  5cm 

LT  - 20:30

NIRO ALIGN on delta Sco = HD143275

go for MWC275 = HD163296
lost lots of time finding first fringes cal HD163955
repeated NIRO ALIGN
found brighter reference star HD160915
repeated NIRO align
let's call it a first cal

750Hz NONDEST LONGSCAN
22:00 cal HD160915
      +2700um/+5400um
      counts ~ 80
      vis ~

22:15 trg mwc275
finding no fringes ...

try closer calibrator ...

22:30 cal HD163955
      +2800um/+5500um
      
just realized i had left the 1/2 apertures in from bright star at the start ...
CRAP!!

1000Hz NONDEST LONGSCAN
22:40 cal HD163955
      +2800um/+5500um
      counts ~ 80
      vis ~ 0.5

22:46 trg mwc275
move REF
still not finding fringes ...
note: there is a bit of saturation on one pixel ... i wonder if this
affects the fringe tracking making harder for these small fringes ...

23:15 out of delay.

switch to:

S2W1E2 (521)
W1 = REF

23:30 HD160915
NIRO ALIGN

1000Hz NONDEST MEDSCAN
23:50 cal HD163955
      +3600um/+570um
      counts ~ 70
      vis ~ 0.5

xx:xx trg mwc275
not finding fringes ...
found the cross-fringe +3770um/+400um
occasional small saturation causes problems w. servo ...
recorded 3T data with only the cross-fringe (S2E2) @ 2000Hz.
recorded 2T data with only the cross-fringe (S2E2) @ 1000Hz.

01:30 cal HD163955
      +3400um/-41um
      counts ~ 50

this is too hard ... 
maybe try again tomorrow, do something else now ...

go for v1295 Aql = HD190073

NIRO ALIGN on cal HD188385

750Hz NONDEST MEDSCAN

01:40 cal HD188385
not finding fringes ... weird
go to some brighter star for a scan search ... still no fringes ...
check carts: OK.
redo NIRO ALIGN.
go to yet another check star for fringes: HD187691.

03:00 cal HD188385
      +4950um/+650um
      counts ~ 40

03:15 trg v1295aql
no fringes ...
tried 500Hz for more signal ... nothing.
back to 750Hz and look more ... cannot find fringes on any of the 3
baselines ...

03:50 cal HD190498
      +4600um/+255um
      counts ~ 40

04:00 out of delay. DONE.

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Summary:

S1W2E1: 
no fringes on mwc275.

S2W1E2:
only S2E2 fringe on mwc275.
no fringes on v1295aql.
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