Telescope: NASA IRTF, Mauna Kea Instrument: MIRSI Date: 2005 July 02 UT Conditions: No clouds, humidity 15-24%, 0.4-0.7" seeing, light winds File Object UT Date UT Time Airmass Bandpass Itime Frame Time Mode Start Finish (micron) (sec) (msec) m20050702_0017.fit HR 5340 2005-07-02 03:17:33 03:17:54 1.250 10.4 0.5 4 Chop/Nod m20050702_0018.fit HR 5340 2005-07-02 03:18:36 03:18:57 1.246 10.4 0.5 4 Chop/Nod m20050702_0019.fit HR 5340 2005-07-02 03:20:33 03:20:54 1.239 11.6 1.0 12 Chop/Nod m20050702_0020.fit HR 5340 2005-07-02 03:21:03 03:21:24 1.237 11.6 1.0 12 Chop/Nod m20050702_0021.fit HR 5340 2005-07-02 03:22:03 03:22:24 1.234 12.5 1.0 12 Chop/Nod m20050702_0022.fit HR 5340 2005-07-02 03:22:34 03:22:55 1.232 12.5 1.0 12 Chop/Nod m20050702_0023.fit HR 5340 2005-07-02 03:24:34 03:24:55 1.225 4.9 1.0 12 Chop/Nod m20050702_0024.fit HR 5340 2005-07-02 03:25:03 03:25:24 1.223 4.9 1.0 12 Chop/Nod m20050702_0025.fit HR 5340 2005-07-02 03:26:02 03:26:23 1.219 7.7 1.0 12 Chop/Nod m20050702_0026.fit HR 5340 2005-07-02 03:26:35 03:26:56 1.218 7.7 1.0 12 Chop/Nod m20050702_0027.fit HR 5340 2005-07-02 03:27:45 03:28:06 1.214 8.7 1.0 12 Chop/Nod m20050702_0028.fit HR 5340 2005-07-02 03:28:16 03:28:37 1.212 8.7 1.0 12 Chop/Nod m20050702_0029.fit HR 5340 2005-07-02 03:29:58 03:30:19 1.206 9.8 1.0 12 Chop/Nod m20050702_0030.fit HR 5340 2005-07-02 03:30:27 03:30:48 1.205 9.8 1.0 12 Chop/Nod m20050702_0031.fit HR 5340 2005-07-02 03:31:38 03:31:59 1.201 18.4 1.0 12 Chop/Nod m20050702_0032.fit HR 5340 2005-07-02 03:32:08 03:32:29 1.199 18.4 1.0 12 Chop/Nod m20050702_0069.fit 9P/Tempel 1 2005-07-02 05:29:00 05:32:43 1.141 10.4 10.0 8 Chop/Nod m20050702_0070.fit 9P/Tempel 1 2005-07-02 05:32:34 05:34:31 1.142 11.6 10.0 24 Chop/Nod m20050702_0071.fit 9P/Tempel 1 2005-07-02 05:34:59 05:36:56 1.143 12.5 10.0 24 Chop/Nod m20050702_0072.fit 9P/Tempel 1 2005-07-02 05:38:22 05:40:19 1.145 7.7 10.0 24 Chop/Nod m20050702_0073.fit 9P/Tempel 1 2005-07-02 05:40:57 05:42:54 1.146 8.7 10.0 24 Chop/Nod m20050702_0074.fit 9P/Tempel 1 2005-07-02 05:44:15 05:46:12 1.148 9.8 10.0 24 Chop/Nod m20050702_0075.fit 9P/Tempel 1 2005-07-02 05:46:47 05:48:44 1.150 10.4 10.0 24 Chop/Nod m20050702_0076.fit 9P/Tempel 1 2005-07-02 05:50:52 05:52:49 1.154 11.6 10.0 24 Chop/Nod m20050702_0077.fit 9P/Tempel 1 2005-07-02 05:53:16 05:55:13 1.155 12.5 10.0 24 Chop/Nod m20050702_0078.fit 9P/Tempel 1 2005-07-02 05:56:36 05:58:33 1.159 7.7 10.0 24 Chop/Nod m20050702_0079.fit 9P/Tempel 1 2005-07-02 05:59:08 06:01:05 1.161 8.7 10.0 24 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 02. (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 0.092 03:24 0.092 03:34 0.094 03:43 0.094 03:54 0.09 04:04 0.094 04:13 0.093 04:24 0.101 04:34 0.099 04:43 0.09 04:54 0.09 05:04 0.092 05:13 0.097 05:24 0.098 05:34 0.094 05:43 0.099 05:54 0.11