Telescope: NASA IRTF, Mauna Kea Instrument: SpeX (Imager) Date: 2005 July 09 UT Conditions: No clouds, humidity 15-56%, 0.75-1.5" seeing, light winds File Object UT Date UT Time Airmass Filter Itime Coadds PosAngle Slit Start Finish (sec) (deg) g20050709_0001_a.fit HD 116960 2005-07-09 06:19:54 06:20:04 1.106 H 0.50 10 0.00 0.8x15 g20050709_0002_a.fit HD 116960 2005-07-09 06:20:08 06:20:18 1.106 H 0.50 10 0.00 0.8x15 g20050709_0003_a.fit HD 116960 2005-07-09 06:20:22 06:20:32 1.107 H 0.50 10 0.00 0.8x15 g20050709_0004_a.fit HD 116960 2005-07-09 06:20:36 06:20:46 1.107 H 0.50 10 0.00 0.8x15 g20050709_0005_a.fit HD 116960 2005-07-09 06:20:50 06:21:00 1.108 H 0.50 10 0.00 0.8x15 g20050709_0006_a.fit HD 116960 2005-07-09 06:22:07 06:22:27 1.111 K 1.00 10 0.00 0.8x15 g20050709_0007_a.fit HD 116960 2005-07-09 06:22:30 06:22:51 1.112 K 1.00 10 0.00 0.8x15 g20050709_0008_a.fit HD 116960 2005-07-09 06:22:54 06:23:14 1.113 K 1.00 10 0.00 0.8x15 g20050709_0009_a.fit HD 116960 2005-07-09 06:23:17 06:23:37 1.114 K 1.00 10 0.00 0.8x15 g20050709_0010_a.fit HD 116960 2005-07-09 06:23:40 06:24:00 1.114 K 1.00 10 0.00 0.8x15 g20050709_0011_a.fit HD 116960 2005-07-09 06:24:34 06:24:54 1.116 J 1.00 10 0.00 0.8x15 g20050709_0012_a.fit HD 116960 2005-07-09 06:24:57 06:25:17 1.117 J 1.00 10 0.00 0.8x15 g20050709_0013_a.fit HD 116960 2005-07-09 06:25:21 06:25:41 1.118 J 1.00 10 0.00 0.8x15 g20050709_0014_a.fit HD 116960 2005-07-09 06:25:44 06:26:04 1.119 J 1.00 10 0.00 0.8x15 g20050709_0015_a.fit HD 116960 2005-07-09 06:26:07 06:26:27 1.120 J 1.00 10 0.00 0.8x15 g20050709_0016_a.fit HD 116960 2005-07-09 06:31:14 06:31:34 1.132 L' 1.00 10 0.00 0.8x15 g20050709_0017_a.fit HD 116960 2005-07-09 06:32:14 06:32:38 1.134 L' 0.24 50 0.00 0.8x15 g20050709_0018_a.fit HD 116960 2005-07-09 06:33:24 06:33:49 1.137 L' 0.24 50 0.00 0.8x15 g20050709_0019_b.fit HD 116960 2005-07-09 06:33:51 06:34:15 1.138 L' 0.24 50 0.00 0.8x15 g20050709_0020_a.fit HD 116960 2005-07-09 06:35:09 06:35:22 1.141 L' 0.24 25 0.00 0.8x15 g20050709_0021_b.fit HD 116960 2005-07-09 06:35:24 06:35:37 1.142 L' 0.24 25 0.00 0.8x15 g20050709_0022_a.fit HD 116960 2005-07-09 06:37:11 06:38:46 1.150 L' 0.24 200 0.00 0.8x15 g20050709_0023_b.fit HD 116960 2005-07-09 06:38:48 06:40:24 1.154 L' 0.24 200 0.00 0.8x15 g20050709_0024_a.fit HD 116960 2005-07-09 06:41:05 06:42:25 1.159 L' 0.16 200 0.00 0.8x15 g20050709_0025_b.fit HD 116960 2005-07-09 06:42:11 06:43:31 1.162 L' 0.16 200 0.00 0.8x15 g20050709_0026_a.fit 9P/Tempel 1 2005-07-09 06:46:26 06:47:42 1.325 J 30.00 2 0.00 0.8x15 g20050709_0027_b.fit 9P/Tempel 1 2005-07-09 06:47:45 06:49:00 1.330 J 30.00 2 0.00 0.8x15 g20050709_0028_a.fit 9P/Tempel 1 2005-07-09 06:49:59 06:50:37 1.335 J 30.00 1 0.00 0.8x15 g20050709_0029_a.fit 9P/Tempel 1 2005-07-09 06:50:40 06:51:18 1.337 J 30.00 1 0.00 0.8x15 g20050709_0030_a.fit 9P/Tempel 1 2005-07-09 06:51:22 06:52:00 1.340 J 30.00 1 0.00 0.8x15 g20050709_0031_a.fit 9P/Tempel 1 2005-07-09 06:52:05 06:52:43 1.342 J 30.00 1 0.00 0.8x15 g20050709_0032_a.fit 9P/Tempel 1 2005-07-09 06:52:47 06:53:25 1.345 J 30.00 1 0.00 0.8x15 g20050709_0033_a.fit 9P/Tempel 1 2005-07-09 06:54:05 06:55:20 1.351 H 30.00 2 0.00 0.8x15 g20050709_0034_b.fit 9P/Tempel 1 2005-07-09 06:55:22 06:56:38 1.356 H 30.00 2 0.00 0.8x15 g20050709_0035_a.fit 9P/Tempel 1 2005-07-09 06:57:11 06:58:26 1.363 H 30.00 2 0.00 0.8x15 g20050709_0036_b.fit 9P/Tempel 1 2005-07-09 06:58:31 06:59:46 1.368 H 30.00 2 0.00 0.8x15 g20050709_0037_a.fit 9P/Tempel 1 2005-07-09 07:05:36 07:07:32 1.398 K 50.00 2 0.00 Mirror g20050709_0038_b.fit 9P/Tempel 1 2005-07-09 07:07:34 07:09:30 1.406 K 50.00 2 0.00 Mirror g20050709_0039_a.fit 9P/Tempel 1 2005-07-09 07:10:10 07:12:06 1.417 K 50.00 2 0.00 Mirror g20050709_0040_b.fit 9P/Tempel 1 2005-07-09 07:12:08 07:14:04 1.426 K 50.00 2 0.00 Mirror g20050709_0041_a.fit 9P/Tempel 1 2005-07-09 07:15:10 07:16:29 1.436 L' 0.16 200 0.00 Mirror g20050709_0042_b.fit 9P/Tempel 1 2005-07-09 07:16:16 07:17:35 1.442 L' 0.16 200 0.00 Mirror g20050709_0043_a.fit 9P/Tempel 1 2005-07-09 07:18:13 07:24:50 1.471 L' 0.16 1000 0.00 Mirror g20050709_0044_b.fit 9P/Tempel 1 2005-07-09 07:23:31 07:30:08 1.499 L' 0.16 1000 0.00 Mirror g20050709_0045_a.fit 9P/Tempel 1 2005-07-09 07:34:47 07:41:25 1.566 L' 0.16 1000 0.00 Mirror g20050709_0046_b.fit 9P/Tempel 1 2005-07-09 07:40:05 07:46:43 1.601 L' 0.16 1000 0.00 Mirror g20050709_0047_a.fit 9P/Tempel 1 2005-07-09 07:48:30 07:52:52 1.644 L' 1.50 60 0.00 Mirror g20050709_0048_b.fit 9P/Tempel 1 2005-07-09 07:51:28 07:55:50 1.666 L' 1.50 60 0.00 Mirror g20050709_0049_dflat.fit Dome Flat 2005-07-09 07:59:17 08:00:11 1.932 H 10.00 3 0.00 Mirror g20050709_0050_dflat.fit Dome Flat 2005-07-09 08:00:46 08:01:40 1.932 J 10.00 3 0.00 Mirror g20050709_0051_dflat.fit Dome Flat 2005-07-09 08:02:09 08:03:32 1.932 K 20.00 3 0.00 Mirror g20050709_0053_dflat.fit Dome Flat 2005-07-09 08:05:41 08:06:35 1.932 J 10.00 3 0.00 Mirror g20050709_0054_dflat.fit Dome Flat 2005-07-09 08:06:56 08:07:50 1.932 H 10.00 3 0.00 Mirror g20050709_0055_dflat.fit Dome Flat 2005-07-09 08:08:08 08:09:31 1.932 K 20.00 3 0.00 Mirror Optical depth at 225 GHz measured at the Caltech Submillimeter Observatory (CSO) on Mauna Kea as function of time (UT) on 2005 Jul 09. (Precipitable water vapor above the summit of Mauna Kea can be approximated by pwv (mm) ~ 20 * Tau (225 GHz), ie: for Tau (225 Ghz) ~ 0.10, pwv ~ 2 mm). UT Tau (225 GHz) 06:13 0.084 06:24 0.083 06:34 0.088 06:43 0.086 06:54 0.082 07:04 0.088 07:13 0.094 07:24 0.085 07:34 0.1 07:43 0.083 07:54 0.093