Telescope: NASA IRTF, Mauna Kea Instrument: SpeX (Spectrograph) Date: 2005 July 05 UT Conditions: Scattered cirrus, humidity 44-70%, 0.5-2" seeing, light winds File Object UT Date UT Time Airmass Itime Coadds PosAngle Slit Grating GuideDog Start Finish (sec) (deg) images? b20050705_0001_arc_a.fit Argon lamp 2005-07-05 07:44:15 07:44:51 1.137 2.00 10 0.00 0.8x15 LongXD2.1 N b20050705_0002_arc_b.fit Argon lamp 2005-07-05 07:45:01 07:45:37 1.139 2.00 10 0.00 0.8x15 LongXD2.1 N b20050705_0003_flat.fit QTH+IR lamp 2005-07-05 07:47:42 07:47:49 1.144 0.13 10 0.00 0.8x15 LongXD2.1 N b20050705_0004_flat.fit QTH+IR lamp 2005-07-05 07:47:46 07:47:53 1.144 0.13 10 0.00 0.8x15 LongXD2.1 N b20050705_0005_flat.fit QTH+IR lamp 2005-07-05 07:47:49 07:47:56 1.145 0.13 10 0.00 0.8x15 LongXD2.1 N b20050705_0006_flat.fit QTH+IR lamp 2005-07-05 07:47:52 07:47:59 1.145 0.13 10 0.00 0.8x15 LongXD2.1 N b20050705_0007_flat.fit QTH+IR lamp 2005-07-05 07:47:55 07:48:02 1.145 0.13 10 0.00 0.8x15 LongXD2.1 N b20050705_0008_a.fit 9P/Tempel 1 2005-07-05 08:31:03 08:31:39 1.901 2.00 10 0.00 0.8x15 LongXD2.1 Y b20050705_0009_a.fit 9P/Tempel 1 2005-07-05 08:31:39 08:32:15 1.907 2.00 10 0.00 0.8x15 LongXD2.1 Y b20050705_0010_a.fit 9P/Tempel 1 2005-07-05 08:32:23 08:32:58 1.917 2.00 10 0.00 0.8x15 LongXD2.1 Y b20050705_0011_b.fit 9P/Tempel 1 2005-07-05 08:33:04 08:33:40 1.925 2.00 10 0.00 0.8x15 LongXD2.1 Y b20050705_0012_b.fit 9P/Tempel 1 2005-07-05 08:33:41 08:34:16 1.931 2.00 10 0.00 0.8x15 LongXD2.1 Y b20050705_0013_a.fit 9P/Tempel 1 2005-07-05 08:34:22 08:34:58 1.939 2.00 10 0.00 0.8x15 LongXD2.1 Y b20050705_0014_a.fit 9P/Tempel 1 2005-07-05 08:34:58 08:35:34 1.947 2.00 10 0.00 0.8x15 LongXD2.1 Y b20050705_0015_b.fit 9P/Tempel 1 2005-07-05 08:35:40 08:36:16 1.956 2.00 10 0.00 0.8x15 LongXD2.1 Y b20050705_0016_b.fit 9P/Tempel 1 2005-07-05 08:36:17 08:36:53 1.962 2.00 10 0.00 0.8x15 LongXD2.1 Y b20050705_0017_a.fit 9P/Tempel 1 2005-07-05 08:36:58 08:37:34 1.971 2.00 10 0.00 0.8x15 LongXD2.1 Y b20050705_0018_a.fit 9P/Tempel 1 2005-07-05 08:38:24 08:38:60 1.988 2.00 10 0.00 0.8x15 LongXD2.1 Y b20050705_0019_b.fit 9P/Tempel 1 2005-07-05 08:39:06 08:39:41 1.997 2.00 10 0.00 0.8x15 LongXD2.1 Y b20050705_0020_b.fit 9P/Tempel 1 2005-07-05 08:39:42 08:40:18 2.006 2.00 10 0.00 0.8x15 LongXD2.1 Y b20050705_0021_a.fit 9P/Tempel 1 2005-07-05 08:40:24 08:40:60 2.015 2.00 10 0.00 0.8x15 LongXD2.1 Y b20050705_0022_a.fit 9P/Tempel 1 2005-07-05 08:41:00 08:41:36 2.022 2.00 10 0.00 0.8x15 LongXD2.1 Y b20050705_0023_b.fit 9P/Tempel 1 2005-07-05 08:41:42 08:42:18 2.031 2.00 10 0.00 0.8x15 LongXD2.1 Y b20050705_0024_b.fit 9P/Tempel 1 2005-07-05 08:42:18 08:42:54 2.040 2.00 10 0.00 0.8x15 LongXD2.1 Y b20050705_0025_a.fit 9P/Tempel 1 2005-07-05 08:43:00 08:43:35 2.050 2.00 10 0.00 0.8x15 LongXD2.1 Y b20050705_0026_a.fit 9P/Tempel 1 2005-07-05 08:43:55 08:44:31 2.062 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0027_b.fit 9P/Tempel 1 2005-07-05 08:44:37 08:45:14 2.071 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0028_a.fit 9P/Tempel 1 2005-07-05 08:45:24 08:46:01 2.084 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0029_b.fit 9P/Tempel 1 2005-07-05 08:46:07 08:46:44 2.093 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0030_a.fit 9P/Tempel 1 2005-07-05 08:46:57 08:47:33 2.106 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0031_b.fit 9P/Tempel 1 2005-07-05 08:47:40 08:48:17 2.116 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0032_b.fit 9P/Tempel 1 2005-07-05 08:48:17 08:48:54 2.126 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0033_a.fit 9P/Tempel 1 2005-07-05 08:48:59 08:49:36 2.137 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0034_a.fit 9P/Tempel 1 2005-07-05 08:49:37 08:50:14 2.145 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0035_b.fit 9P/Tempel 1 2005-07-05 08:50:19 08:50:56 2.158 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0036_b.fit 9P/Tempel 1 2005-07-05 08:50:56 08:51:33 2.166 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0037_a.fit 9P/Tempel 1 2005-07-05 08:51:39 08:52:16 2.177 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0038_a.fit 9P/Tempel 1 2005-07-05 08:52:23 08:52:60 2.188 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0039_b.fit 9P/Tempel 1 2005-07-05 08:53:05 08:53:42 2.202 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0040_b.fit 9P/Tempel 1 2005-07-05 08:53:43 08:54:20 2.211 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0041_a.fit 9P/Tempel 1 2005-07-05 08:54:25 08:55:02 2.225 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0042_a.fit 9P/Tempel 1 2005-07-05 08:55:05 08:55:42 2.234 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0043_b.fit 9P/Tempel 1 2005-07-05 08:55:47 08:56:24 2.246 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0044_b.fit 9P/Tempel 1 2005-07-05 08:56:25 08:57:01 2.258 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0045_a.fit 9P/Tempel 1 2005-07-05 08:57:07 08:57:44 2.270 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0046_a.fit 9P/Tempel 1 2005-07-05 08:57:49 08:58:26 2.282 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0047_b.fit 9P/Tempel 1 2005-07-05 08:58:31 08:59:08 2.294 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0048_b.fit 9P/Tempel 1 2005-07-05 08:59:09 08:59:46 2.307 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0049_a.fit 9P/Tempel 1 2005-07-05 08:59:51 09:00:28 2.319 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0050_a.fit 9P/Tempel 1 2005-07-05 09:00:28 09:01:05 2.329 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0051_b.fit 9P/Tempel 1 2005-07-05 09:01:11 09:01:48 2.345 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0052_b.fit 9P/Tempel 1 2005-07-05 09:01:48 09:02:25 2.355 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0053_a.fit 9P/Tempel 1 2005-07-05 09:02:31 09:03:08 2.369 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0054_a.fit 9P/Tempel 1 2005-07-05 09:03:11 09:03:48 2.382 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0055_b.fit 9P/Tempel 1 2005-07-05 09:03:53 09:04:30 2.395 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0056_b.fit 9P/Tempel 1 2005-07-05 09:04:31 09:05:07 2.409 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0057_a.fit 9P/Tempel 1 2005-07-05 09:05:13 09:05:50 2.423 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0058_a.fit 9P/Tempel 1 2005-07-05 09:05:51 09:06:27 2.438 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0059_b.fit 9P/Tempel 1 2005-07-05 09:06:33 09:07:10 2.452 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0060_b.fit 9P/Tempel 1 2005-07-05 09:07:10 09:07:47 2.463 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0061_a.fit 9P/Tempel 1 2005-07-05 09:07:53 09:08:29 2.478 20.00 1 0.00 0.8x15 LongXD2.1 Y b20050705_0062_a.fit HR 5107 2005-07-05 09:12:09 09:12:25 2.309 1.00 10 0.00 0.8x15 LongXD2.1 N b20050705_0063_b.fit HR 5107 2005-07-05 09:12:30 09:12:46 2.315 1.00 10 0.00 0.8x15 LongXD2.1 N b20050705_0064_b.fit HR 5107 2005-07-05 09:12:46 09:13:02 2.322 1.00 10 0.00 0.8x15 LongXD2.1 N b20050705_0065_a.fit HR 5107 2005-07-05 09:13:07 09:13:23 2.329 1.00 10 0.00 0.8x15 LongXD2.1 N b20050705_0066_a.fit HR 5107 2005-07-05 09:13:23 09:13:39 2.332 1.00 10 0.00 0.8x15 LongXD2.1 N b20050705_0067_b.fit HR 5107 2005-07-05 09:13:44 09:13:60 2.339 1.00 10 0.00 0.8x15 LongXD2.1 N b20050705_0068_b.fit HR 5107 2005-07-05 09:14:00 09:14:16 2.346 1.00 10 0.00 0.8x15 LongXD2.1 N b20050705_0069_a.fit HR 5107 2005-07-05 09:14:21 09:14:37 2.353 1.00 10 0.00 0.8x15 LongXD2.1 N b20050705_0070_arc_a.fit Argon lamp 2005-07-05 09:15:21 09:15:57 2.381 2.00 10 0.00 0.8x15 LongXD2.1 N b20050705_0071_arc_b.fit Argon lamp 2005-07-05 09:16:06 09:16:42 2.396 2.00 10 0.00 0.8x15 LongXD2.1 N b20050705_0072_flat.fit QTH+IR lamp 2005-07-05 09:18:47 09:18:54 2.440 0.13 10 0.00 0.8x15 LongXD2.1 N b20050705_0073_flat.fit QTH+IR lamp 2005-07-05 09:18:50 09:18:57 2.444 0.13 10 0.00 0.8x15 LongXD2.1 N b20050705_0074_flat.fit QTH+IR lamp 2005-07-05 09:18:53 09:19:00 2.444 0.13 10 0.00 0.8x15 LongXD2.1 N b20050705_0075_flat.fit QTH+IR lamp 2005-07-05 09:18:56 09:19:03 2.444 0.13 10 0.00 0.8x15 LongXD2.1 N b20050705_0076_flat.fit QTH+IR lamp 2005-07-05 09:18:59 09:19:06 2.448 0.13 10 0.00 0.8x15 LongXD2.1 N Optical depth at 225 GHz measured at the Caltech Submillimeter Observatory (CSO) on Mauna Kea as function of time (UT) on 2005 Jul 05. (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 0.084 08:34 0.086 08:43 0.088 08:54 0.088 09:04 0.086 09:13 0.087 09:24 0.107