2011-06-15 (UT)
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Program: CL4 (YSOs, PI: Kraus et al.)
Observers: Fabien Baron, PJ Goldfinger, FLUOR team
B1 B2 B3
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E1 W1 W2 (W1=REF)
(S1S2E1E2W1W2: 4-5-1-3-1-5)
CLIMB on beam 1,2,3
LT - 20:30
*** E1W1W2, W1=ref.
start: weather clear, humidity <40%
r0 = 3-6 cm at the start of the night, then around 8 cm
scan length LONG
Problems with E1 server having crashed
trying MWC 863
cal 150698 NIRO ALIGN
21:50 500/-3000
seeing is too bad to be able to do anything
22: 00 380/-2950
22:07 500/NONDEST/HALF
counts : 40 / 45 / 30
V: 0.43 / 0.50 / 0.37
22:14 324/ -2880
22:20 MWC863
22:28 60 / -2560
extremely weak fringes
mostly B2B3, but I did see a few frames with all 3 !
500/NONDEST/HALF
V: 0.14/0.30/0.10
counts: forgot to get them...
now trying 250Hz/DEST/FULL
MWC863
22:40 30/-2560 ?
fringes in B2B3 sometimes, very few fringes in B3B1, none in B1B2
counts: 25 / 47/30
V: 0.11 / 0.24 / 0.13
very very bad data especially at the end
23:05 50 / -2600
counts: 30 / 50 / 30
V: 0.42/0.40/0.29
23:09 50 / -2600
will try to tweak tip/tilt to make it faster and improve things
tweaks with PJ did not bring any improvment
trying MWC 614
23:52 cal HD 177305
??? / -1600
0:00 ??? / -1580
0:07 -190/-1510
500Hz/NONDEST/HALF
counts: 35 / 35 / 35
V: 0.67 / 0.57 / 0.39
0:18 MWC 614
-165/-1520
counts: 40 / 35 / 35
V: 0.21 / 0.25 / 0.19
0:26 -172/-1480
cal HD178568
0:35 -144/-1414
counts: 20 / 20 / 20
V: 0.59 / 0.56 / 0.55
0:51 MWC 614
-180 / -1340
counts: 35 / 30 / 30
V: 0.23 / 0.23 / 0.18
1:00 -200/-1321
cal HD 177305
1:05 -190 / -1240
counts:
V: 0.44 / 0.45 / 0.45
1:14 -210/-1240
MWC 614
1:27 -200/-1200
lots of bad snr frames
took a while to find B2B3 and B3B1 but found thenm
B1B2 is at most in a few frames, but is there
cosmic ray at some point
counts: 20 / 20 / 20
V: 0.71 / 0.30 / 0.26
1:30 -190/ -1210
cal HD178568
1:42 -210 / -1180
counts: 25 / 10 / 15
V: 0.53 / 0.52 / 0.44
1:50 -250 / -1170
switching to MWC 340
HD 194708
2:12 -630/-1500
500 / NONDEST / HALF
counts: 38 / 38 / 38
V: 0.51 / 0.50 / 0.37
2:20 -640 / -1500
MWC 340
2:30 -640 / -1485
counts: 40 / 40 / 35
V; 0.13 / 0.30 / 0.20
2:42 -620 / -1470
2:45 HD 195988
-510 / -1458
counts: not sure, around same as others
V: 0.56 / 0.53 / 0.48
2:53 -500 / -1460
MWC 340
counts: 35 / 35/ 35
V: 0.14 / 0.29 / 0.20
3:05 -570 / -1480
HD 194708
3:14 -480 / -1470
counts: 35 / 35 / 30
V: 0.54 / 0.47 / 0.41
3:19 -491/ -1470
3:30 MWC 340
counts: 25 / 30 / 25
V: 0.21 / 0.40 / 0.21
-550 / -1490
during the end shutter sequence, lost tip/tilt on B3 but got it back before the B3 shutter sequence
starting shutter sequence is perfectly clean (just in case)
3:40 HD 195988
3:45 -460/-1460
counts: 30 / 30 / 30
V: 0.59 / 0.34/ 0.33
lost tip/tilt on W2 during DATA, then got it back. shutters unaffected
4:00 -490 / -1460
MWC 340 2T
V: ?? / 0.31 / ?? -- only has W1W2 (B2B3) and might have a few B3B1
out of delay
switching to MWC 361
4:25 NIRO ALIGN on HD 197950
recording at 750/DEST
-1880/-2250
counts: 45 / 50 / 45
v: 0.58 / 0.43 / 0.42
4:41 MWC 361
-1900 / -2290
counts: 70 / 70 / 70
V: 0.10 / 0.29 / 0.14
4:45 -1875/-2280
HD 198236
4:52 -2082/-2460
counts: 120 / 130 / 120
V: 0.50 / 0.46 / 0.40
-2100 / -2452
5:00 MWC 361
-2020/-2350
counts: 80 / 80 / 80
V: 0.14 / 0.26 / 0.11
5:10 HD 197950
counts: 50 / 50 /50
V: 0.52 / 0.42 / 0.45
-2100/ -2390
5:15
Sunrise
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summary of observations:
MWC 863 2 brackets of terrible quality, 2T only I think
MWC 614 3 brackets
MWC 340 3 brackets + half a bracket with 2T only
MWC 361 2 brackets