Telescope: NASA IRTF, Mauna Kea Instrument: SpeX (Imager) Date: 2005 June 24 UT Conditions: No clouds, humidity 21-24%, 0.6-0.8" seeing, winds SE 9-13 mph File Object UT Date UT Time Airmass Filter Itime Coadds PosAngle Slit Start Finish (sec) (deg) g20050624_0001_a.fit 9p/Tempel 1 2005-06-24 08:25:35 08:26:43 1.545 J 60.00 1 0.00 Mirror g20050624_0002_a.fit 9p/Tempel 1 2005-06-24 08:26:46 08:27:54 1.553 J 60.00 1 0.00 Mirror g20050624_0003_a.fit 9p/Tempel 1 2005-06-24 08:27:58 08:29:06 1.562 J 60.00 1 0.00 Mirror g20050624_0004_a.fit 9p/Tempel 1 2005-06-24 08:29:10 08:30:18 1.570 J 60.00 1 0.00 Mirror g20050624_0005_a.fit 9p/Tempel 1 2005-06-24 08:30:22 08:31:30 1.579 J 60.00 1 0.00 Mirror g20050624_0006_a.fit 9p/Tempel 1 2005-06-24 08:37:44 08:38:52 1.633 H 60.00 1 0.00 Mirror g20050624_0007_a.fit 9p/Tempel 1 2005-06-24 08:38:55 08:40:03 1.643 H 60.00 1 0.00 Mirror g20050624_0008_a.fit 9p/Tempel 1 2005-06-24 08:40:07 08:41:15 1.653 H 60.00 1 0.00 Mirror g20050624_0009_a.fit 9p/Tempel 1 2005-06-24 08:41:18 08:42:26 1.663 H 60.00 1 0.00 Mirror g20050624_0010_a.fit 9p/Tempel 1 2005-06-24 08:42:30 08:43:38 1.673 H 60.00 1 0.00 Mirror g20050624_0011_a.fit 9p/Tempel 1 2005-06-24 08:48:03 08:50:11 1.731 K 120.00 1 0.00 Mirror g20050624_0012_a.fit 9p/Tempel 1 2005-06-24 08:50:15 08:52:23 1.752 K 120.00 1 0.00 Mirror g20050624_0013_a.fit 9p/Tempel 1 2005-06-24 08:52:27 08:54:35 1.774 K 120.00 1 0.00 Mirror g20050624_0014_a.fit 9p/Tempel 1 2005-06-24 08:54:39 08:56:47 1.795 K 120.00 1 0.00 Mirror g20050624_0015_a.fit 9p/Tempel 1 2005-06-24 08:56:51 08:58:59 1.818 K 120.00 1 0.00 Mirror g20050624_0016_a.fit FS 23 2005-06-24 09:23:32 09:24:41 1.512 J 60.00 1 0.00 Mirror g20050624_0017_a.fit FS 23 2005-06-24 09:24:44 09:25:52 1.520 J 60.00 1 0.00 Mirror g20050624_0018_a.fit FS 23 2005-06-24 09:25:57 09:27:05 1.528 J 60.00 1 0.00 Mirror g20050624_0019_a.fit FS 23 2005-06-24 09:27:09 09:28:17 1.536 J 60.00 1 0.00 Mirror g20050624_0020_a.fit FS 23 2005-06-24 09:28:20 09:29:28 1.545 J 60.00 1 0.00 Mirror g20050624_0023_a.fit FS 23 2005-06-24 09:32:51 09:34:06 1.578 H 30.00 2 0.00 Mirror g20050624_0024_a.fit FS 23 2005-06-24 09:34:10 09:35:25 1.587 H 30.00 2 0.00 Mirror g20050624_0025_a.fit FS 23 2005-06-24 09:35:29 09:36:45 1.597 H 30.00 2 0.00 Mirror g20050624_0026_a.fit FS 23 2005-06-24 09:36:48 09:38:04 1.608 H 30.00 2 0.00 Mirror g20050624_0027_a.fit FS 23 2005-06-24 09:38:07 09:39:23 1.618 H 30.00 2 0.00 Mirror g20050624_0028_a.fit FS 23 2005-06-24 09:42:01 09:42:39 1.644 K 30.00 1 0.00 Mirror g20050624_0029_a.fit FS 23 2005-06-24 09:42:45 09:43:24 1.649 K 30.00 1 0.00 Mirror g20050624_0030_a.fit FS 23 2005-06-24 09:43:27 09:44:05 1.655 K 30.00 1 0.00 Mirror g20050624_0031_a.fit FS 23 2005-06-24 09:44:08 09:44:46 1.661 K 30.00 1 0.00 Mirror g20050624_0032_a.fit FS 23 2005-06-24 09:44:49 09:45:28 1.667 K 30.00 1 0.00 Mirror g20050624_0033_dflat.fit Dome Flat 2005-06-24 09:53:10 09:53:28 1.932 K 10.00 1 0.00 Mirror g20050624_0034_dflat.fit Dome Flat 2005-06-24 09:53:28 09:53:46 1.932 K 10.00 1 0.00 Mirror g20050624_0035_dflat.fit Dome Flat 2005-06-24 09:53:46 09:54:05 1.932 K 10.00 1 0.00 Mirror g20050624_0036_dflat.fit Dome Flat 2005-06-24 09:54:05 09:54:23 1.932 K 10.00 1 0.00 Mirror g20050624_0037_dflat.fit Dome Flat 2005-06-24 09:54:23 09:54:41 1.932 K 10.00 1 0.00 Mirror g20050624_0038_dflat.fit Dome Flat 2005-06-24 09:54:41 09:54:60 1.932 K 10.00 1 0.00 Mirror g20050624_0039_dflat.fit Dome Flat 2005-06-24 09:55:00 09:55:18 1.932 K 10.00 1 0.00 Mirror g20050624_0040_dflat.fit Dome Flat 2005-06-24 09:55:18 09:55:36 1.932 K 10.00 1 0.00 Mirror g20050624_0041_dflat.fit Dome Flat 2005-06-24 09:55:36 09:55:55 1.932 K 10.00 1 0.00 Mirror g20050624_0042_dflat.fit Dome Flat 2005-06-24 09:55:55 09:56:13 1.932 K 10.00 1 0.00 Mirror g20050624_0043_dflat.fit Dome Flat 2005-06-24 09:57:12 09:57:22 1.932 H 5.00 1 0.00 Mirror g20050624_0044_dflat.fit Dome Flat 2005-06-24 09:57:22 09:57:33 1.932 H 5.00 1 0.00 Mirror g20050624_0045_dflat.fit Dome Flat 2005-06-24 09:57:33 09:57:43 1.932 H 5.00 1 0.00 Mirror g20050624_0046_dflat.fit Dome Flat 2005-06-24 09:57:43 09:57:54 1.932 H 5.00 1 0.00 Mirror g20050624_0047_dflat.fit Dome Flat 2005-06-24 09:57:54 09:58:04 1.932 H 5.00 1 0.00 Mirror g20050624_0048_dflat.fit Dome Flat 2005-06-24 09:58:23 09:58:33 1.932 J 5.00 1 0.00 Mirror g20050624_0049_dflat.fit Dome Flat 2005-06-24 09:58:33 09:58:44 1.932 J 5.00 1 0.00 Mirror g20050624_0050_dflat.fit Dome Flat 2005-06-24 09:58:44 09:58:54 1.932 J 5.00 1 0.00 Mirror g20050624_0051_dflat.fit Dome Flat 2005-06-24 09:58:54 09:59:05 1.932 J 5.00 1 0.00 Mirror g20050624_0052_dflat.fit Dome Flat 2005-06-24 09:59:05 09:59:16 1.932 J 5.00 1 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 Jun 24. (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) 08:24 0.176 08:34 0.182 08:43 0.175 08:54 0.162 09:04 0.158 09:13 0.157 09:24 0.16 09:34 0.161 09:43 0.149 09:54 0.157