Telescope: NASA IRTF, Mauna Kea Instrument: MIRSI Date: 2005 July 07 UT Conditions: No clouds, humidity 32-49%, 0.6" seeing, winds ENE 26-33 mph File Object UT Date UT Time Airmass Bandpass Itime Frame Time Mode Start Finish (micron) (sec) (msec) m20050707_0012.fit HR 5340 2005-07-07 03:23:10 03:23:26 1.166 8.7 1.0 24 Chop/Nod m20050707_0013.fit HR 5340 2005-07-07 03:23:59 03:24:15 1.164 8.7 1.0 24 Chop/Nod m20050707_0014.fit HR 5340 2005-07-07 03:25:41 03:25:57 1.159 9.8 1.0 24 Chop/Nod m20050707_0015.fit HR 5340 2005-07-07 03:26:27 03:26:43 1.157 9.8 1.0 24 Chop/Nod m20050707_0016.fit HR 5340 2005-07-07 03:27:31 03:27:47 1.154 10.4 1.0 24 Chop/Nod m20050707_0017.fit HR 5340 2005-07-07 03:28:08 03:28:24 1.152 10.4 1.0 24 Chop/Nod m20050707_0018.fit HR 5340 2005-07-07 03:28:53 03:29:17 1.150 10.4 1.0 12 Chop/Nod m20050707_0019.fit HR 5340 2005-07-07 03:29:44 03:30:08 1.148 10.4 1.0 12 Chop/Nod m20050707_0020.fit HR 5340 2005-07-07 03:31:10 03:31:26 1.144 11.6 1.0 24 Chop/Nod m20050707_0021.fit HR 5340 2005-07-07 03:31:47 03:32:03 1.143 11.6 1.0 24 Chop/Nod m20050707_0022.fit HR 5340 2005-07-07 03:32:57 03:33:13 1.140 12.5 1.0 24 Chop/Nod m20050707_0023.fit HR 5340 2005-07-07 03:33:38 03:33:54 1.138 12.5 1.0 24 Chop/Nod m20050707_0024.fit HR 5340 2005-07-07 03:34:50 03:35:06 1.135 18.4 1.0 24 Chop/Nod m20050707_0025.fit HR 5340 2005-07-07 03:35:38 03:35:54 1.133 18.4 1.0 24 Chop/Nod m20050707_0026.fit HR 5340 2005-07-07 03:36:49 03:37:13 1.130 10.4 1.0 12 Chop/Nod m20050707_0028.fit 9P/Tempel 1 2005-07-07 03:46:28 03:50:22 1.237 10.4 20.0 24 Chop/Nod m20050707_0029.fit 9P/Tempel 1 2005-07-07 03:51:29 03:54:27 1.227 8.7 20.0 60 Chop/Nod m20050707_0030.fit 9P/Tempel 1 2005-07-07 03:55:07 03:58:05 1.220 8.7 20.0 60 Chop/Nod m20050707_0031.fit 9P/Tempel 1 2005-07-07 03:58:35 04:01:33 1.214 8.7 20.0 60 Chop/Nod m20050707_0032.fit 9P/Tempel 1 2005-07-07 04:03:26 04:06:24 1.206 11.6 20.0 60 Chop/Nod m20050707_0033.fit 9P/Tempel 1 2005-07-07 04:06:58 04:09:56 1.201 11.6 20.0 60 Chop/Nod m20050707_0034.fit 9P/Tempel 1 2005-07-07 04:10:31 04:13:29 1.196 11.6 20.0 60 Chop/Nod m20050707_0035.fit 9P/Tempel 1 2005-07-07 04:14:29 04:17:27 1.191 12.5 20.0 60 Chop/Nod m20050707_0036.fit 9P/Tempel 1 2005-07-07 04:19:09 04:22:07 1.186 12.5 20.0 60 Chop/Nod m20050707_0038.fit 9P/Tempel 1 2005-07-07 04:25:22 04:28:20 1.179 18.4 20.0 60 Chop/Nod m20050707_0039.fit 9P/Tempel 1 2005-07-07 04:29:24 04:32:22 1.176 12.5 20.0 60 Chop/Nod m20050707_0040.fit 9P/Tempel 1 2005-07-07 04:33:45 04:36:43 1.172 18.4 20.0 60 Chop/Nod m20050707_0041.fit 9P/Tempel 1 2005-07-07 04:37:36 04:41:30 1.169 18.4 20.0 24 Chop/Nod m20050707_0043.fit 9P/Tempel 1 2005-07-07 04:46:23 04:50:17 1.165 18.4 20.0 24 Chop/Nod m20050707_0044.fit 9P/Tempel 1 2005-07-07 04:51:01 04:53:59 1.163 11.6 20.0 60 Chop/Nod m20050707_0045.fit 9P/Tempel 1 2005-07-07 04:54:23 04:57:21 1.162 11.6 20.0 60 Chop/Nod m20050707_0046.fit HR 5340 2005-07-07 04:58:27 04:58:43 1.161 11.6 1.0 24 Chop/Nod m20050707_0047.fit HR 5340 2005-07-07 04:59:16 04:59:32 1.161 11.6 1.0 24 Chop/Nod m20050707_0048.fit HR 5340 2005-07-07 05:00:20 05:00:36 1.161 11.6 1.0 24 Chop/Nod m20050707_0049.fit HR 5340 2005-07-07 05:02:24 05:02:40 1.009 12.5 1.0 24 Chop/Nod m20050707_0050.fit HR 5340 2005-07-07 05:03:04 05:03:20 1.009 12.5 1.0 24 Chop/Nod m20050707_0051.fit HR 5340 2005-07-07 05:04:08 05:04:24 1.008 18.4 1.0 24 Chop/Nod m20050707_0052.fit HR 5340 2005-07-07 05:04:45 05:05:01 1.008 18.4 1.0 24 Chop/Nod m20050707_0053.fit HR 5340 2005-07-07 05:06:24 05:06:40 1.007 8.7 1.0 24 Chop/Nod m20050707_0054.fit HR 5340 2005-07-07 05:07:02 05:07:18 1.007 8.7 1.0 24 Chop/Nod m20050707_0055.fit HR 5340 2005-07-07 05:09:08 05:09:32 1.006 10.4 1.0 12 Chop/Nod m20050707_0056.fit HR 5340 2005-07-07 05:10:04 05:10:28 1.005 10.4 1.0 12 Chop/Nod Optical depth at 225 GHz measured at the Caltech Submillimeter Observatory (CSO) on Mauna Kea as function of time (UT) on 2005 July 07. (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) 03:13 0.161 03:24 0.158 03:34 0.171 03:43 0.158 03:54 0.13 04:04 0.133 04:13 0.127 04:24 0.129 04:34 0.127 04:43 0.131 04:54 0.125 05:04 0.13 05:13 0.13