2012-11-27 (UT) =========== Program: CL5 (T Tauri Objects, PI: Millan-Gabet et al.) Observers: Rafael, Chris CLIMB on beams 123 S1E1W1 POPs 334 ref on Beam3 K band clear, good seeing hd222173 NIRO ALIGN NIRO DEST (to avoid saturation) 750Hz MEDSCAN ut 01:40 hd222173 cal1 offsets S1: -1645um / E1: -2792um counts ~ ut 01:47 hd222439 = kappa and - R. White target -1610um / -2767um counts ~ 50 ut 01:55 hd222173 cal1 -1561 um / -2687um move REF cart NIRO align ut 02:07 hd222173 cal1 ut 02:15 hd222439 = kappa and ut 02:24 hd222173 cal1 -1404um / -2470um counts ~ 100 ut 02:31 hd222439 = kappa and -1410um / -2445um ut 02:41 hd222173 cal1 flux down ... patchy clouds all around ... managed to finish the bracket. stop for a while ... ut 03:35 clear hole ... try a bracket hd222173 cal1 -1220um / -2200um counts ~ 100 loosing flux counts ~ 10 ... gone with 30 scans to go ... stop for a while ... try again ... pretty clear now ut 04:15 hd222173 cal1 -1438um / -2282um counts ~ 100 ut ?? hd222439 = kappa and ut 04:35 hd222173 cal1 done w. kappa And 1hr gap before TTS in delay ... Chris is doing one of his binary objects. now we do RY Tau pre-transit. (yesterday we also did E1S1W1 but post-transit) ut 05:35 hd24365 cal for RY Tau NIRO Align NIRO NONDEST 750Hz MEDSCAN ut 05:50 hd24365 cal -1654um / -3030um ut 06:00 RY Tau = HD283571 NSUM = 5 on tip-tilt -1650um / -3100um counts ~ 90 ut 06:18 hd24365 cal -1440um / -2730um counts ~ 60 ut 06:25 RY Tau = HD283571 -1490um / -2930um ut 06:35 hd24365 cal -1300um / -2516um ut 06:46 RY Tau = HD283571 ut 07:00 hd24365 cal move REF cart NIRO Align ut 07:10 hd24365 cal -1147um / -2189um ut RY Tau = HD283571 -1200um / -2366um ut 07:30 hd24365 cal -1083um / -2072um ut 07:44 RY Tau = HD283571 -1080um / -2167um ut 07:55 hd24365 cal done w. ry tau ------------------ change POPs to 315 ------------------ ut 08:10 hd29763 NIRO Align find fringes - offsets: -1250um / -2400um NIRO NONDEST 500Hz MEDSCAN NSUM = 5 on tip-tilt ut 08:30 hd32480 cal -1200um / -2380um ut 08:40 SU Aur = hd282624 -1070um / -2166um counts ~ 60 ut 08:50 hd32480 cal -1200um / -2324um counts ~ 70 ut 09:05 SU Aur = hd282624 ut 09:20 hd31706 cal counts ~ 40 SNR is kinda of low on this cal ... ut 09:30 SU Aur = hd282624 -1280um / -2350um ut 09:45 hd32480 cal move REF cart NIRO Align ut 10:00 hd32480 cal -1440um / -2436um counts ~ 40 variable flux - hazy clouds ut 10:10 SU Aur = hd282624 counts ~ 40 low flux at times ... ut 10:00 hd31706 cal -1595um / -2345um counts ~ 30 ut 10:10 SU Aur = hd282624 counts ~ 20 low flux ... >1mag cloud extinction flux came up ... finished the set ut 11:12 hd32480 cal -1778um / -2307um counts ~ 40 done w. su aur --------------- change to: S2E2W2 POPs 125 --------------- set up for RW Aur, but only 1hr delay left and thick cloud cover. give up. -------- Summary: -------- S1E1W1: + kappa And (R. White target): 4 brackets. + patchy clouds, had to stop sometimes. then it cleared. + 1hr gap before TTS cluster: Chris doing one of his binaries. + RY Tau: 5 brackets (pre-transit, yesterday we did 5 post-transit). S1E1W1: + SU Aur: 5 brackets (post-transit). S2E2W2: + RW Aur: cloud cover, no observations. ---