Telescope: NASA IRTF, Mauna Kea Instrument: MIRSI Date: 2005 July 03 UT Conditions: No clouds, humidity 17-20%, 0.7" seeing, winds S 4-13 mph File Object UT Date UT Time Airmass Bandpass Itime Frame Time Mode Start Finish (micron) (sec) (msec) m20050703_0008.fit HR 5340 2005-07-03 03:27:32 03:27:56 1.201 8.7 1.0 12 Chop/Nod m20050703_0009.fit HR 5340 2005-07-03 03:31:03 03:31:27 1.190 8.7 1.0 12 Chop/Nod m20050703_0010.fit HR 5340 2005-07-03 03:32:35 03:32:59 1.185 4.9 1.0 12 Chop/Nod m20050703_0011.fit HR 5340 2005-07-03 03:34:07 03:34:31 1.180 4.9 1.0 12 Chop/Nod m20050703_0012.fit HR 5340 2005-07-03 03:35:17 03:35:41 1.177 4.9 1.0 12 Chop/Nod m20050703_0013.fit HR 5340 2005-07-03 03:36:49 03:37:13 1.172 7.7 1.0 12 Chop/Nod m20050703_0014.fit HR 5340 2005-07-03 03:37:39 03:38:03 1.170 7.7 1.0 12 Chop/Nod m20050703_0015.fit HR 5340 2005-07-03 03:39:35 03:39:59 1.164 9.8 1.0 12 Chop/Nod m20050703_0016.fit HR 5340 2005-07-03 03:41:23 03:41:47 1.159 9.8 1.0 12 Chop/Nod m20050703_0017.fit HR 5340 2005-07-03 03:42:56 03:43:20 1.155 11.6 1.0 12 Chop/Nod m20050703_0018.fit HR 5340 2005-07-03 03:44:01 03:44:25 1.152 11.6 1.0 12 Chop/Nod m20050703_0019.fit HR 5340 2005-07-03 03:46:32 03:46:56 1.145 11.6 1.0 12 Chop/Nod m20050703_0020.fit HR 5340 2005-07-03 03:48:11 03:48:35 1.141 12.5 1.0 12 Chop/Nod m20050703_0021.fit HR 5340 2005-07-03 03:49:00 03:49:24 1.139 12.5 1.0 12 Chop/Nod m20050703_0022.fit HR 5340 2005-07-03 03:50:25 03:50:49 1.136 18.4 1.0 12 Chop/Nod m20050703_0023.fit HR 5340 2005-07-03 03:51:41 03:52:05 1.132 18.4 1.0 12 Chop/Nod m20050703_0024.fit HR 5340 2005-07-03 03:52:40 03:53:04 1.130 18.4 1.0 12 Chop/Nod m20050703_0025.fit HR 5340 2005-07-03 03:54:14 03:54:38 1.126 10.4 1.0 12 Chop/Nod m20050703_0026.fit HR 5340 2005-07-03 03:55:30 03:55:54 1.123 10.4 1.0 12 Chop/Nod m20050703_0027.fit HR 5340 2005-07-03 03:56:49 03:57:13 1.120 10.4 1.0 12 Chop/Nod m20050703_0028.fit HR 5340 2005-07-03 04:03:33 04:07:19 1.105 10.4 10.0 8 Chop/Nod m20050703_0029.fit 9P/Tempel 1 2005-07-03 04:07:42 04:09:42 1.194 10.4 10.0 24 Chop/Nod m20050703_0030.fit 9P/Tempel 1 2005-07-03 04:10:44 04:12:44 1.189 10.4 10.0 24 Chop/Nod m20050703_0031.fit 9P/Tempel 1 2005-07-03 04:14:06 04:15:38 1.184 11.6 10.0 60 Chop/Nod m20050703_0032.fit 9P/Tempel 1 2005-07-03 04:16:10 04:17:18 1.181 11.6 10.0 120 Chop/Nod m20050703_0033.fit 9P/Tempel 1 2005-07-03 04:20:14 04:23:12 1.176 11.6 20.0 60 Chop/Nod m20050703_0034.fit 9P/Tempel 1 2005-07-03 04:24:16 04:27:14 1.171 12.5 20.0 60 Chop/Nod m20050703_0035.fit 9P/Tempel 1 2005-07-03 04:27:59 04:30:57 1.166 12.5 20.0 60 Chop/Nod m20050703_0036.fit 9P/Tempel 1 2005-07-03 04:31:20 04:32:52 1.163 9.8 10.0 60 Chop/Nod m20050703_0037.fit 9P/Tempel 1 2005-07-03 04:34:29 04:37:27 1.160 9.8 20.0 60 Chop/Nod m20050703_0038.fit 9P/Tempel 1 2005-07-03 04:38:51 04:41:49 1.156 8.7 20.0 60 Chop/Nod m20050703_0039.fit 9P/Tempel 1 2005-07-03 04:42:26 04:45:24 1.154 8.7 20.0 60 Chop/Nod m20050703_0040.fit 9P/Tempel 1 2005-07-03 04:46:11 04:49:09 1.151 7.7 20.0 60 Chop/Nod m20050703_0041.fit 9P/Tempel 1 2005-07-03 04:51:38 04:57:30 1.148 7.7 40.0 60 Chop/Nod m20050703_0042.fit 9P/Tempel 1 2005-07-03 04:57:39 05:00:37 1.145 4.9 20.0 60 Chop/Nod m20050703_0043.fit 9P/Tempel 1 2005-07-03 05:01:55 05:03:55 1.144 10.4 10.0 24 Chop/Nod m20050703_0044.fit 9P/Tempel 1 2005-07-03 05:04:34 05:06:34 1.143 10.4 10.0 24 Chop/Nod m20050703_0048_dark.fit Dark 2005-07-03 05:36:35 05:37:18 20.0 60 Grab m20050703_0049_dark.fit Dark 2005-07-03 05:37:10 05:37:53 20.0 60 Grab m20050703_0050_dark.fit Dark 2005-07-03 05:37:44 05:38:27 20.0 60 Grab m20050703_0051_dark.fit Dark 2005-07-03 05:38:17 05:39:00 20.0 60 Grab m20050703_0052_dark.fit Dark 2005-07-03 05:38:51 05:39:34 20.0 60 Grab m20050703_0053_dark.fit Dark 2005-07-03 05:41:16 05:41:37 10.0 60 Grab m20050703_0054_dark.fit Dark 2005-07-03 05:41:37 05:41:58 10.0 60 Grab m20050703_0055_dark.fit Dark 2005-07-03 05:41:58 05:42:19 10.0 60 Grab m20050703_0056_dark.fit Dark 2005-07-03 05:42:19 05:42:40 10.0 60 Grab m20050703_0057_dark.fit Dark 2005-07-03 05:42:40 05:43:01 10.0 60 Grab m20050703_0058_dark.fit Dark 2005-07-03 05:43:22 05:43:50 10.0 24 Grab m20050703_0059_dark.fit Dark 2005-07-03 05:43:48 05:44:16 10.0 24 Grab m20050703_0060_dark.fit Dark 2005-07-03 05:44:16 05:44:44 10.0 24 Grab m20050703_0061_dark.fit Dark 2005-07-03 05:44:42 05:45:10 10.0 24 Grab m20050703_0062_dark.fit Dark 2005-07-03 05:45:09 05:45:37 10.0 24 Grab m20050703_0063_dark.fit Dark 2005-07-03 05:46:06 05:47:01 10.0 8 Grab m20050703_0064_dark.fit Dark 2005-07-03 05:46:49 05:47:44 10.0 8 Grab m20050703_0065_dark.fit Dark 2005-07-03 05:47:32 05:48:27 10.0 8 Grab m20050703_0066_dark.fit Dark 2005-07-03 05:48:15 05:49:10 10.0 8 Grab m20050703_0067_dark.fit Dark 2005-07-03 05:48:57 05:49:52 10.0 8 Grab Optical depth at 225 GHz measured at the Caltech Submillimeter Observatory (CSO) on Mauna Kea as function of time (UT) on 2005 July 03. (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) 03:24 0.083 03:34 0.085 03:43 0.083 03:54 0.086 04:04 0.088 04:13 0.085 04:24 0.082 04:34 0.088 04:43 0.09 04:54 0.101 05:04 0.083 05:13 0.094 05:24 0.087 05:34 0.075 05:43 0.092