2011-08-03 (UT) =============== Program: CL4 (YSOs, PI: Kraus) Observers: Stefan, Chris, Nic TEL.: S1-S2-E1-E2-W1-W2 POPs: 5- 3- 5- 1- 4- 5 BEAM: 1- 1- 2- 2- 3- 3 LT 20:14 = UT 03:14 = LST 16:07 some patches of clouds (it rained in the afternoon) humidity 20-30%, no so bad *** S1-E2-W1 UT 03:30 - HD144470 (for setup) found fringes at B23=+0.21, B12=+0.23 UT 03:40 - HD140990 (cal) recording 500Hz/LONG/NON-DEST recording 500Hz/SHORT/NON-DEST (but fringes are lost quite often, so LONG seems better) UT 04:03 - HD142666 cannot find fringes with 500 Hz, switch to 750 Hz (cannot use calibrator before) recording 750Hz/LONG/NON-DEST, S1=+2.24 mm, W1=+1.86 mm relatively fast piston UT 04:25 - HD140990 recording 750Hz/LONG/NON-DEST, S1=+2.21 mm, W1=+1.94 mm seeing r0=2-7 UT 04:36 - HD142666 recording 750Hz/LONG/NON-DEST, S1=+2.29 mm, W1=+1.96 mm UT 04:57 - HD140990 recording 750Hz/LONG/NON-DEST UT 05:08 - HD142666 recording 750Hz/LONG/NON-DEST, W1=1.88 mm (only B23, cannot find other fringes) object at 25 degree, getting pretty low UT 05:29 - HD143616 recording 750Hz/LONG/NON-DEST, S1=+2.46 mm, W1=+1.99 mm UT 05:45 - HD150698 (CAL for MWC863) recording 750Hz/LONG/NON-DEST, S1=+2.59 mm, W1=+1.64 mm UT 06:00 - MWC863 (CHARA-ID 150193) recording 750Hz/LONG/NON-DEST, S1=+2.61 mm, W1=+1.74 mm (elev=22 deg) fringe on B23 clear, fringe on B31 seems also to be there, but all low SNR UT 06:20 - HD152429 (CAL for MWC863) recording 750Hz/LONG/NON-DEST, S1=+2.65 mm, W1=+1.69 mm (elev=22 deg) UT 06:30 - HD170294 (CAL for VV Ser) recording 500Hz/LONG/NON-DEST, S1=+1.74 mm, W1=+2.02 mm (elev=52 deg) UT 06:53 - VV Ser (CHARA-ID 320105) cannot acquire star UT 07:00 - HD163955 (CAL for HD163296) recording 750Hz/LONG/NON-DEST, S1=+2.47 mm, W1=+1.89 mm (elev=25 deg) UT 07:15 - HD163296 cannot find fringes UT 07:40 - HD189509 (CAL1 for V1295 Aql) NIRO crashes recording 750Hz/LONG/NON-DEST, S1=+1.73 mm, W1=+1.98 mm SHUTTER DID NOT CLOSE DURING THE LAST RECORDING! restart NIRO again recording 750Hz/LONG/NON-DEST, S1=+1.73 mm, W1=+1.98 mm UT 08:00 - V1295Aql (=HD190073) recording 750Hz/LONG/NON-DEST, S1=+1.75 mm, W1=+2.07 mm first few hundred frames do not have fringes; later there should be all fringes but second half should have all fringes (but very low and noisy!) UT 08:30 - HD189509 (CAL1 for V1295 Aql) recording 750Hz/LONG/NON-DEST, S1=+1.74 mm, W1=+2.19 mm UT 08:45 - V1295Aql (=HD190073) recording 750Hz/LONG/NON-DEST, S1=+1.74 mm, W1=+2.19 mm (elev=54 deg) after the first 50 frames or so, the fringes should then be there for all three baselines (but still noisy) UT 08:55 - HD188385 (CAL2 for V1295 Aql) recording 750Hz/LONG/NON-DEST, S1=+1.83 mm, W1=+2.32 mm UT 09:05 - V1295Aql (=HD190073) recording 750Hz/LONG/NON-DEST (elev=54 deg) not clear whether there are fringes in the data set (likely there is at least B23) UT 09:30 - running out of delay *** S2-E2-W2 Pointing of S2 is off. Chris & Nic go out and fix it. In addition, S2 is vibrating after a new pointing It settled down with time or can make a manual paddle, which also helps UT 10:35 - HD196180 (CAL1 for Delta Del) recording 1000Hz/LONG/DEST UT 10:45 - Delta Del (=HD197461) recording 1000Hz/LONG/DEST UT 10:55 - HD196180 (CAL1 for Delta Del) recording 1000Hz/LONG/DEST UT 11:05 - Delta Del (=HD197461) recording 1000Hz/LONG/DEST UT 11:15 - HD195810 (CAL2 for Delta Del) recording 1000Hz/LONG/DEST UT 11:25 - Delta Del (=HD197461) recording 1000Hz/LONG/DEST UT 11:35 - HD195810 (CAL2 for Delta Del) recording 1000Hz/LONG/DEST (matrix sequence "BEAM 2" might be damaged, since star was lost for a few seconds) UT 11:48 - HD212837 (CAL1 for 52 Aqr) recording 1000Hz/LONG/DEST UT 12:05 - 52 Aqr (=HD212571) recording 1000Hz/LONG/DEST UT 12:15 - HD212837 (CAL1 for 52 Aqr) recording 1000Hz/LONG/DEST UT 12:25 - 52 Aqr (=HD212571) recording 1000Hz/LONG/DEST UT 12:33 - HD211356 (CAL2 for 52 Aqr) running out of delay on last calibrator UT 12:40 - closing down -------------------- useful data: HD142666 (2 brackets on S1E2W1, 1 bracket on E2W1) MWC863 (1 bracket on S1E2W1) V1295Aql (2 brackets on S1E2W1) Delta Del (3 brackets on S2E2W2) 52 Aqr (2 brackets on S2E2W2)