Telescope: NASA IRTF, Mauna Kea Instrument: MIRSI Date: 2005 July 09 UT Conditions: No clouds, humidity 15-56%, 0.75" seeing, light winds File Object UT Date UT Time Airmass Bandpass Itime Frame Time Mode Start Finish (micron) (sec) (msec) m20050709_0015.fit HR 5340 2005-07-09 02:31:59 02:32:09 1.327 8.7 0.5 24 Chop/Nod m20050709_0016.fit HR 5340 2005-07-09 02:32:31 02:32:39 1.324 8.7 0.2 24 Chop/Nod m20050709_0017.fit HR 5340 2005-07-09 02:33:40 02:33:56 1.319 7.7 1.0 24 Chop/Nod m20050709_0018.fit HR 5340 2005-07-09 02:34:17 02:34:33 1.316 7.7 1.0 24 Chop/Nod m20050709_0019.fit HR 5340 2005-07-09 02:35:58 02:36:14 1.309 11.6 1.0 24 Chop/Nod m20050709_0020.fit HR 5340 2005-07-09 02:36:30 02:36:46 1.306 11.6 1.0 24 Chop/Nod m20050709_0021.fit HR 5340 2005-07-09 02:37:16 02:37:32 1.303 11.6 1.0 24 Chop/Nod m20050709_0022.fit HR 5340 2005-07-09 02:38:30 02:38:46 1.297 12.5 1.0 24 Chop/Nod m20050709_0023.fit HR 5340 2005-07-09 02:39:07 02:39:23 1.295 12.5 1.0 24 Chop/Nod m20050709_0024.fit HR 5340 2005-07-09 02:40:07 02:40:23 1.290 18.4 1.0 24 Chop/Nod m20050709_0025.fit HR 5340 2005-07-09 02:40:43 02:40:59 1.288 18.4 1.0 24 Chop/Nod m20050709_0026.fit HR 5340 2005-07-09 02:41:49 02:42:05 1.283 18.4 1.0 24 Chop/Nod m20050709_0027.fit HR 5340 2005-07-09 02:42:54 02:43:18 1.279 10.4 1.0 12 Chop/Nod m20050709_0028.fit HR 5340 2005-07-09 02:43:33 02:43:57 1.276 10.4 1.0 12 Chop/Nod m20050709_0029.fit HR 5340 2005-07-09 02:44:21 02:44:45 1.273 10.4 1.0 12 Chop/Nod m20050709_0030.fit 9P/Tempel 1 2005-07-09 02:48:40 02:50:40 1.415 10.4 10.0 24 Chop/Nod m20050709_0031.fit 9P/Tempel 1 2005-07-09 02:52:38 02:56:32 1.398 10.4 20.0 24 Chop/Nod m20050709_0032.fit 9P/Tempel 1 2005-07-09 02:56:54 03:00:48 1.381 10.4 20.0 24 Chop/Nod m20050709_0033.fit 9P/Tempel 1 2005-07-09 03:01:03 03:04:01 1.365 11.6 20.0 60 Chop/Nod m20050709_0034.fit 9P/Tempel 1 2005-07-09 03:04:26 03:07:24 1.353 11.6 20.0 60 Chop/Nod m20050709_0035.fit 9P/Tempel 1 2005-07-09 03:07:45 03:10:43 1.341 11.6 20.0 60 Chop/Nod m20050709_0036.fit 9P/Tempel 1 2005-07-09 03:11:09 03:14:07 1.330 12.5 20.0 60 Chop/Nod m20050709_0037.fit 9P/Tempel 1 2005-07-09 03:14:26 03:17:24 1.320 12.5 20.0 60 Chop/Nod m20050709_0038.fit 9P/Tempel 1 2005-07-09 03:18:01 03:20:59 1.309 12.5 20.0 60 Chop/Nod m20050709_0040.fit 9P/Tempel 1 2005-07-09 03:25:59 03:28:57 1.286 18.4 20.0 60 Chop/Nod m20050709_0041.fit 9P/Tempel 1 2005-07-09 03:31:53 03:37:45 1.271 18.4 40.0 60 Chop/Nod m20050709_0042.fit 9P/Tempel 1 2005-07-09 03:39:05 03:44:57 1.255 11.6 40.0 60 Chop/Nod m20050709_0043.fit 9P/Tempel 1 2005-07-09 03:48:14 03:54:06 1.236 7.7 40.0 60 Chop/Nod m20050709_0044.fit 9P/Tempel 1 2005-07-09 03:55:02 04:00:54 1.224 8.7 40.0 60 Chop/Nod m20050709_0045.fit 9P/Tempel 1 2005-07-09 04:01:17 04:07:09 1.213 8.7 40.0 60 Chop/Nod m20050709_0046.fit 9P/Tempel 1 2005-07-09 04:07:37 04:13:29 1.204 8.7 40.0 60 Chop/Nod m20050709_0049.fit HR 5340 2005-07-09 04:26:30 04:26:46 1.032 8.7 1.0 24 Chop/Nod m20050709_0050.fit HR 5340 2005-07-09 04:27:37 04:27:53 1.031 8.7 1.0 24 Chop/Nod m20050709_0051.fit HR 5340 2005-07-09 04:28:27 04:28:43 1.030 4.9 1.0 24 Chop/Nod m20050709_0052.fit HR 5340 2005-07-09 04:29:10 04:29:26 1.029 4.9 1.0 24 Chop/Nod m20050709_0053.fit HR 5340 2005-07-09 04:29:55 04:30:11 1.028 7.7 1.0 24 Chop/Nod m20050709_0054.fit HR 5340 2005-07-09 04:30:24 04:30:40 1.028 7.7 1.0 24 Chop/Nod m20050709_0055.fit HR 5340 2005-07-09 04:32:07 04:32:23 1.026 11.6 1.0 24 Chop/Nod m20050709_0056.fit HR 5340 2005-07-09 04:32:37 04:32:53 1.026 11.6 1.0 24 Chop/Nod m20050709_0057.fit HR 5340 2005-07-09 04:33:27 04:33:43 1.025 12.5 1.0 24 Chop/Nod m20050709_0058.fit HR 5340 2005-07-09 04:33:54 04:34:10 1.024 12.5 1.0 24 Chop/Nod m20050709_0059.fit HR 5340 2005-07-09 04:35:10 04:35:26 1.023 18.4 1.0 24 Chop/Nod m20050709_0060.fit HR 5340 2005-07-09 04:35:40 04:35:56 1.023 18.4 1.0 24 Chop/Nod m20050709_0061.fit HR 5340 2005-07-09 04:36:46 04:37:10 1.022 10.4 1.0 12 Chop/Nod m20050709_0062.fit HR 5340 2005-07-09 04:37:24 04:37:48 1.021 10.4 1.0 12 Chop/Nod m20050709_0063.fit HR 5340 2005-07-09 04:38:07 04:38:31 1.021 10.4 1.0 12 Chop/Nod m20050709_0064.fit 9P/Tempel 1 2005-07-09 04:43:24 04:45:24 1.174 10.4 10.0 24 Chop/Nod m20050709_0065.fit 9P/Tempel 1 2005-07-09 04:48:57 04:56:39 1.172 10.4 40.0 24 Chop/Nod m20050709_0066.fit 9P/Tempel 1 2005-07-09 04:59:19 05:07:01 1.172 4.9 40.0 24 Chop/Nod m20050709_0067.fit 9P/Tempel 1 2005-07-09 05:08:16 05:14:08 1.171 11.6 40.0 60 Chop/Nod m20050709_0068.fit 9P/Tempel 1 2005-07-09 05:14:59 05:18:59 1.173 4.9 40.0 150 Chop/Nod m20050709_0069.fit 9P/Tempel 1 2005-07-09 05:23:44 05:35:36 1.177 4.9 120.0 150 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 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) 02:24 0.103 02:34 0.11 02:43 0.104 02:54 0.103 03:04 0.104 03:13 0.102 03:24 0.104 03:34 0.102 03:43 0.1 03:54 0.093 04:04 0.09 04:13 0.094 04:24 0.092 04:34 0.097 04:43 0.09 04:54 0.09 05:04 0.098 05:13 0.106 05:24 0.087 05:34 0.089 05:43 0.104