UT 13 June 2013
CHARA/CLIMB - CL10 - PI: Millan-Gabet et al.

Observers: Norm, Rafael.

Configuration:

beams 1-2(REF)-3 = S1-W2-W1 POPs 4-5-1: starting configuration
beams 1-2(REF)-3 = S2-W2-E1 POPs 1-5-4: backup configuration

20:30 
check star HD141513
NIRO align

20:45
check star HD144217
+900um / +4500um

NIRO 500Hz / NONDEST / MEDSCAN

21:30
cal HD144766
+600um / +3900um
counts ~ 30

21:50
trg HD142666
+300um / +3700um
counts ~ 20
low snr on longer baselines

22:00
cal HD144766
+250um / +3300um
counts ~ 30

NIRO ALIGN

22:30
cal HD144766
+90um / +3000um
counts ~ 40

22:50
trg HD142666
-90um / +3000um
counts ~ 20
cannot find S1W1 fringe...

try AS205A but cannot lock TT on it (V=12)...

go for trg MWC863 = HD150193_A = CHARA 187041

NIRO 500Hz / NONDEST / MEDSCAN

23:30
cal HD145809 
NIRO ALIGN
-225um / +2800um
counts ~ 70

repeat at SHORTSCAN so we can decide on the target

23:50
cal HD145809 
-250um / +2800um

00:00
trg mwc863
cannot find fringes...
see only very weak W1W2 fringe, rarely...

go for trg v1295aql = HD190073

00:25 HD187059 NIRO ALIGN

NIRO 500Hz / NONDEST / SHORTSCAN

00:40
cal HD190498
+1400um / +3900um
counts ~ 40

trg v1295aql = HD190073
OPLE sending errors all the time cannot stop it...
CLIMB died...
cannot find trg S1 offset...
go back to cal

01:55
cal HD190498
+700um / +2800um

02:10
trg v1295aql = HD190073
can see S1W1 fringe but barely almost never there...

go for trg mwc275 = HD163296

NIRO 750Hz / DEST / SHORTSCAN

02:30
cal HD163955
NIRO ALIGN
-250um / +2800um
counts ~ 70

02:40
trg mwc275 = HD163296
even the W1W2 fringe is hard to keep...
tried MEDSCAN and 500Hz...
fast seeing...

we seem to have a bad combination of:
low elevation
fast seeing
big sizes for S1W1 baseline

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Summary:
S1-W2-W1

HD142666: 1 bracket.
AS205A: attempted but no luck (V=12)
MWC863: attempted but no luck. barely W1W2 fringe.
v1295Aql: can't keep the S1W1 fringe.
MWC275: can't even keep the W1W2 fringe.

we seem to have a bad combination of:
low elevation
fast seeing
big sizes for S1W1 baseline

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