Telescope: Clay Instrument: MIKE Observer(s): Aarnio Assistant: Sergio File Object UT start Exp.[s] Airmass Slit Binning Comments 344 ThAr 19:45 15 0".35 1x1 Fast readout mode (86s) 345-354 Quartz 19:48 120/30 355 ThAr 20:23 15/10 testing shorter time on red side (nah, keep 15s) 356-365 Milky Quartz 20:27 120/96 diffuser in 366-375 Bias 21:04 0 diffuser out 376 ThAr 21:25 15 (checking if diffuser is out all the way) 377-383 Twilight trace 23:30 60/60 blue chip temperature is red on GUI 384 ThAr 00:01 15 385 DG Tau 00:09 900/600 1.782 Seeing ~0".9 386 DG Tau 00:31/00:21 1800/1200 1.883 seeing getting worse- spiked to 1".6 387 DG Tau 01:03/00:42 1/1100 1s blue exposure is to keep B/R numbers lined up 388-389 ThAr 01:04 15 390 GW Ori 01:09 520/340 1.339 Humidity 68%, 12C, wind 18mph 391-392 GW Ori 01:19 550/450 1.351 seeing ~0".9, humidity 53% 393-394 ThAr 01:41 15 395 MWC 758 01:45 290/250 1.826 seeing ~0."7 396-397 MWC 758 01:51 290/275 1.852 398 ThAr 02:04 15 399-401 HR 1544 02:06 30/25 1.537 A1 IV flux calibrator 402-403 ThAr 02:12 15 404 HD 35187 02:17 250/290 1.982 seeing 0".7 405-406 HD 35187 02:24 300/300 2.042 seeing 0".5 407-408 ThAr 02:37 15 409 CQ Tau 02:41 550/500 2.054 elevation 29 degrees, seeing 0".8 410-411 CQ Tau 02:52 550/550 2.153 red side ok, very poor s/n on blue side 412 ThAr 03:13 15 413-415 HR 1544 03:15 30/25 2.084 A1 IV flux calibrator 416-417 ThAr 03:21 15 418 CO Ori 03:25 600/520 1.896 419-420 CO Ori 03:36 600/600 2.009 421-422 ThAr 04:00 15 423-424 T Ori 04:04 600/600 1.802 Holy emission lines, batman! 425 T Ori 04:28 800/800 1.967 426 ThAr 04:43 15 427-429 HR 1996 04:46 85/80 1.632 O9V flux calibrator 430-431 ThAr 04:55 15 432 HD 45677 05:10 175/40 1.685 seeing holding steady at 0."7 433-434 HD 45677 05:21 175/25 1.754 14.1C, winds 7mph, humidity 54% 435 ThAr 05:25 15 436 Regulus 05:28 10/10 1.326 defocused at 100, elevaition 48.9 degrees 437-439 Regulus 05:32 12/10 440-441 ThAr 05:40 15 442 HD 135344B 05:45 340/250 1.823 443-444 HD 135344B 05:53 340/340 1.746 445 ThAr 06:07 15 446-448 HR 1996 06:10 85/80 2.584 O9V flux calibrator 449 ThAr 06:19 15 450 ThAr 06:33 15 Damn! Slewed to #21 instead of #29! Minor delay. 451-453 Do Ar 21 06:35 500/500 2.325 Moon setting, humidity 64%. Nothing on the blue side. 454-455 ThAr 07:05 15 456 EM* SR 24S 07:12 500/400 SR24 is close binary- observed brighter, S component. Humidity 69% 457-458 EM* SR 24S 07:23 500/500 1.707 Seeing ~0".5 459-460 ThAr 07:43 15 461 KK Oph 07:49 500/500 1.799 Binary unresolved in guide cam. Pointed to brighter NW component 462 KK Oph 08:00 1000/500 463 KK Oph 08:00 1/500 1s exposure on blue side to keep B/R numbers even 464-465 ThAr 08:20 15 Humidity 69%, wind 9mph 466 51 Oph 08:24 80/30 1.773 467-468 51 Oph 08:30 65/35 469 ThAr 08:33 15 470 HD 163296 08:36 30/30 1.942 471-472 HD 163296 08:39 60/60 1.888 473 ThAr 08:45 15 474 T CrA 08:47 700/700 2.337 Seeing ~0".6, No signal on blue side 475 T CrA 09:01 1/1400 2.155 Took one long red exposure- get high S/N on reddest orders 476 ThAr 09:27 15 477-481 1895685 09:30 94/52 1.085 Diffuser in- rapid rotator trace, star on one side of slit 482-486 1895685 09:45 94/52 1.072 star on other side of slit END NIGHT END RUN