2010-11-30 (UT) ========== Program: CL2 (YSOs, PI: Baron et al.) Observers: Stefan Kraus, Chris Farrington B1 B2 B3 ---------- S1 W1 E1 (W1=REF) S2 E2 W2 (S1S2E1E2W1W2: 4-1-4-1-2-5) CLIMB on beam 1,2,3 LT 17:30 - adjusting potentiometers to handle oscillation problems *** S1E1W1, W1=ref. LT 19:15 - HD15464 (fringe finding star) cannot find fringes LT 20:00 - 34_Ari (fringe finding star) searching for fringes LT 20:30 - 59_Ari (fringe finding star) searching for fringes found B1B2=-0.514cm (S1) found B2B3=0.5974 (E1) seeing 2cm horrible piston, even on K=4 calibrator fringes are very very difficult to find and keep fringes appear only in every second or third scan B1B2=-0.4915cm (S1), B2B3=+0.622cm (E1) LT 21:00 - HD30111 (calibrator AB Aur) B1B2=-0.549 cm (S1), B2B3=+0.576 cm (E1) set NONDEST 1000 Hz, fringes look better recording data (NONDEST, 1000 Hz, LONG, 2010_11_30_HD_30111_climb_001.fit) fringes move like crazy, so no good data quality B1B2=-0.571 cm (S1), B2B3=+0.561 cm (E1) B1B2=-0.539 cm (S1), B2B3=+0.566 cm (E1) LT 21:38 - AB Aur object gives about 20% more counts than calibrator HD30111 (!!!) cannot find fringes, give up saturates sometimes at LONG, use SHORT scan LT 22:00 - HD38164 (calibrator for FU Ori) B1B2=-0.573 cm (S1), B2B3=+0.545 cm (E1) recording data (NONDEST, 750 Hz, LONG), baseline 12 very clear, other baseline often not present B1B2=-0.572 cm (S1), B2B3=+0.530 cm (E1) recording data (NONDEST, 1000 Hz, LONG), about 50 counts, data quality looks better B1B2=-0.572 cm (S1), B2B3=+0.520 cm (E1) B1B2=-0.557 cm (S1), B2B3=+0.542 cm (E1) B1B2=-0.561 cm (S1), B2B3=+0.532 cm (E1) tip-tilt fails sometimes (V=7) LT 22:48 - FU Ori object too faint in (V=9), cannot acquire try again B1B2=-0.535 cm (S1), B2B3=+0.549 cm (E1) recording data (NONDEST, 1000 Hz, LONG), about 20-30 counts fringes move a lot, seeing 2-3cm B1B2=-0.523 cm (S1), B2B3=+0.566 cm (E1) recording data (NONDEST, 750 Hz, LONG), 30-40 counts, better for this object, could record only few frames B1B2=-0.523 cm (S1), B2B3=+0.568 cm (E1) B1B2=-0.538 cm (S1), B2B3=+0.570 cm (E1) had to reset reference cart in the middle of the scan B1B2=-0.525 cm (S1), B2B3=+0.570 cm (E1) LT 23:30 - HD50277, seeing 3cm B1B2=-0.553 cm (S1), B2B3=+0.542 cm (E1) recording data (NONDEST, 750 Hz, LONG), 70 counts B1B2=-0.561 cm (S1), B2B3=+0.542 cm (E1) B1B2=-0.560 cm (S1), B2B3=+0.545 cm (E1) B1B2=-0.555 cm (S1), B2B3=+0.542 cm (E1) recording data (NONDEST, 1000 Hz, LONG), 30-40 counts B1B2=-0.548 cm (S1), B2B3=+0.553 cm (E1) LT 00:05 - MWC147, seeing 3-4cm cannot find fringes running out of delay *** S2W1W2, W1=ref. LT 00:25 - HD37329 for fringe finding searching for fringes B1B2=-0.390 cm (S2), B2B3=+0.400 cm (W2) seeing gets better (maybe 4cm) LT 01:10 - HD31592 (calibrator for MWC758) B1B2=-0.381 cm (S2), B2B3=+0.390 cm (W2) recording data (NONDEST, 750 Hz, LONG), 60 counts B1B2=-0.385 cm (S2), B2B3=+0.389 cm (W2) LT 01:35 - MWC758 B1B2=-0.381 cm (S2), B2B3=+0.390 cm (W2) recording data (NONDEST, 750 Hz, LONG), 40-50 counts very clear fringe on W1W2 baseline, fringe on S2W2, third fringe is not clearly visible but good quality it seems B1B2=-0.375 cm (S2), B2B3=+0.397 cm (W2) LT 01:55 - HD31592 (calibrator for MWC758) B1B2=-0.387 cm (S2), B2B3=+0.373 cm (W2) recording data (NONDEST, 750 Hz, LONG), good quality LT 02:15 - MWC758 B1B2=-0.384 cm (S2), B2B3=+0.382 cm (W2) recording data (NONDEST, 750 Hz, LONG), good quality LT 02:34 - HD32387 (second calibrator for MWC758) B1B2=-0.398 cm (S2), B2B3=+0.368 cm (W2) recording data (NONDEST, 750 Hz, LONG), good quality might be saturating sometimes (very rarely), therefore I do another calibrator LT 02:46 - HD36724 (another calibrator for MWC758) B1B2=-0.392 cm (S2), B2B3=+0.374 cm (W2) recording data (NONDEST, 750 Hz, LONG), very good quality LT 03:00 - MWC758 B1B2=-0.399 cm (S2), B2B3=+0.368 cm (W2) recording data (NONDEST, 750 Hz, LONG), good quality S2W2 baseline fringe is not as clear as before LT 03:15 - HD36724 (calibrator for MWC758) B1B2=-0.405 cm (S2), B2B3=+0.359 cm (W2) recording data (NONDEST, 750 Hz, LONG), good quality LT 03:30 - MWC120 cannot find fringes LT 03:50 - HD38164 (calibrator for FU Ori) recording data (NONDEST, 750 Hz, LONG), good quality (in the first 200 frames, no fringes are present, so reject these) B1B2=-0.478 cm (S2), B2B3=+0.281 cm (W2) LT 04:10 - FU Ori S2 is occulted by the 60 inch-telescope dome, have to give up on this one!!! LT 04:12 - HD34745 (calibrator for MWC120) B1B2=-0.522 cm (S2), B2B3=+0.249 cm (W2) seeing gets worse again fringes on calibrator are rather poor recording data (NONDEST, 750 Hz, LONG), but fringes drift away LT 04:40 - HD56405 (calibrator for HD58647) special case, where one has to reset the reference cart every few minutes it's not practical to observe with this problem (the planning tool does not provide any information about this problem) LT 05:25 - HD73262 (calibrator for Beta CMi) B1B2=-0.423cm (S2), B2B3=+0.347cm (W2) recording data (DEST, 1000 Hz, LONG) LT 05:31 - Beta CMi B1B2=-0.475cm (S2), B2B3=+0.293cm (W2) recording data (DEST, 1000 Hz, LONG) LT 05:48 - HD73262 B1B2=-0.436cm (S2), B2B3=+0.329cm (W2) recording data (DEST, 1000 Hz, LONG) LT 05:53 - Beta CMi B1B2=-0.490cm (S2), B2B3=+0.280cm (W2) recording data (DEST, 1000 Hz, LONG) LT 06:05 - HD73262 recording data (DEST, 1000 Hz, LONG) LT 06:10 - closing down ------------ Problems with S2W1W2: - west Targets (e.g. FU Ori) occulted after approx. LT 4:00 - late targets with DEC<0 deg cause problem with delay line (have to reset REF every minute or so), therefore these objects are not feasible (maybe worth to take this into account for the mircplan planning tool)