----------------------------------------------------------------------------- Mauna Loa Solar Observatory Observer's Log ----------------------------------------------------------------------------- Wed Aug 10 16:45:56 GMT 2016 Year: 16 Doy: 223 Observer: berkey WEATHER COMMENT: berkey: Wed Aug 10 16:46:53 GMT 2016 Temp: 45.2f, Humidity: 34%, Pressure: 28.753in, Wind: 13mph from 157degs, Skies: mostly clear with patchy cirrus ___end___ Wed Aug 10 16:59:28 GMT 2016 COMP Start Patrol on cookbook: synoptic-00007.cbk Wed Aug 10 17:08:04 GMT 2016 KCOR Start Synoptic Patrol Wed Aug 10 17:32:24 GMT 2016 KCOR End Patrol Wed Aug 10 17:38:31 GMT 2016 KCOR Start Synoptic Patrol Wed Aug 10 19:38:32 GMT 2016 KCOR End Patrol Wed Aug 10 19:40:35 GMT 2016 COMP End Patrol Wed Aug 10 19:40:35 GMT 2016 COMP Start Patrol on cookbook: waves-00001.cbk KCOR COMMENT BY berkey: Wed Aug 10 19:59:52 GMT 2016 Temp baffle installed above near the occulter assembly above the hepa output from the optical tube to help search for the kcor fringe source. ___end___ GENERAL COMMENT BY berkey: Wed Aug 10 21:04:40 GMT 2016 Added a temp 35mm apature stop in front of the lyot filter. To also try and find finging issues. ___end___ KCOR COMMENT BY berkey: Wed Aug 10 21:07:41 GMT 2016 Baffle near the occulter didn't change the fringing ___end___ Wed Aug 10 21:13:04 GMT 2016 COMP End Patrol Wed Aug 10 21:13:05 GMT 2016 COMP Start Patrol on cookbook: synoptic-00007.cbk Wed Aug 10 21:22:28 GMT 2016 COMP End Patrol Wed Aug 10 21:25:12 GMT 2016 SGS Alignment complete Wed Aug 10 21:25:21 GMT 2016 COMP Start Patrol on cookbook: synoptic-00007.cbk Wed Aug 10 22:38:23 GMT 2016 KCOR Start Synoptic Patrol GENERAL COMMENT BY berkey: Wed Aug 10 22:38:21 GMT 2016 Baffles have been removed. ___end___ KCOR COMMENT BY berkey: Wed Aug 10 23:18:30 GMT 2016 We see fringing go away when the paper apature stop is in the beam. ___end___ Wed Aug 10 23:30:10 GMT 2016 CoMP Paused for clouds Wed Aug 10 23:33:07 GMT 2016 KCOR End Patrol Wed Aug 10 23:43:54 GMT 2016 CoMP Restarted from pause Wed Aug 10 23:51:56 GMT 2016 KCOR Start Synoptic Patrol KCOR COMMENT BY berkey: Thu Aug 11 00:11:30 GMT 2016 Based on positive findings from this mornings test the black construction paper apature stop was reinstalled to the front of the lyot. Giving a 35mm enterence into the lyot. Care was given to cutting the apature stop, but the ring isn't a perfect cricle so hopefully we find a better solution. Quicklook images look a bit dimmer in the near field (Dennis reprorts an 80% reduction). And Joan reports very low signal in the far field. We made the decision that we would trade the fringes for far field signal over the short term. Looks like the fringing problem is some sort mis-alignment of one of the baffles in the tube or foreoptics. So hopefully we can sort out which one and solve nip this one for good. ___end___ KCOR COMMENT BY berkey: Thu Aug 11 00:18:22 GMT 2016 Kcor configuration timeline for today: 17:06->19:44 Stock kcor config 20:00->20:50 Extra paper baffle near the occulting station to take care of the reflection heading back up the beam. 20:06->22:08 35mm Lyot apature stop installed 22:12->23:33 Stock kcor config 22:43-> on 35mm Paper lyot apature stop installed ___end___ Thu Aug 11 00:20:17 GMT 2016 COMP End Patrol Thu Aug 11 00:20:17 GMT 2016 COMP Start Patrol on cookbook: waves-00001.cbk GENERAL COMMENT BY berkey: Thu Aug 11 01:32:37 GMT 2016 Sky brightness is pretty high right now. ___end___ Thu Aug 11 01:52:34 GMT 2016 COMP End Patrol Thu Aug 11 01:52:35 GMT 2016 COMP Start Patrol on cookbook: synoptic-00007.cbk Thu Aug 11 01:54:15 GMT 2016 KCOR End Patrol Thu Aug 11 02:49:49 GMT 2016 COMP End Patrol