----------------------------------------------------------------------------- Mauna Loa Solar Observatory Observer's Log ----------------------------------------------------------------------------- Thu Jun 24 16:56:39 GMT 1999 Year: 99 Doy: 175 Observer: koon WEATHER COMMENT: Thu Jun 24 16:56:52 GMT 1999 Clear sky, wind=5 mph from the West, temp=52 F. CHIP COMMENT: Thu Jun 24 17:00:43 GMT 1999 The repaired Filter Temperature Controller arrived. I'll install it and turn it on and watch the temperature, with luck it will be correctly setup and I'll be able to collect some data later in the day. LOW-L COMMENT: Thu Jun 24 17:12:08 GMT 1999 Tape file count was at 70, so I stopped the program and removed L00606 from drive #0 and installed L00608 there. Data currently going to L00607 in drive #1. CHIP COMMENT: Thu Jun 24 17:53:18 GMT 1999 Temperature controller installed, setpoint=3.077 vdc, sensor=9.93 vdc, output=9.99 vdc. CHIP temperature field on GUI monitor is at 24.081 C, it was at around 22.0 C before I installed the temperature controller. CHIP COMMENT: Thu Jun 24 19:21:46 GMT 1999 Temp finally overshot and is at 34.651 and climbing. CHIP COMMENT: Thu Jun 24 20:34:52 GMT 1999 It doesn't appear to have the correct setpoint. Temp=38.328. setpoint=3.077, sensor=5.72, output=10.0, all in vdc. COMMENT: Thu Jun 24 20:46:48 GMT 1999 Extended the dome slot around 2015 ut. CHIP COMMENT: Thu Jun 24 21:08:01 GMT 1999 I turned off the temperature controller since it didn't start bringing the temperature back down. I'll check the sensor voltage with the controller on as the temperature passes through the correct range, I'm sure it isn't between 0-5 vdc and I think it needs to be for the control loop to work right. I'll then take down the controller and reset the jumper and setpoint to what they were before the guy at Meadowlark changed them. CHIP COMMENT: Thu Jun 24 23:04:27 GMT 1999 I set the setpoint and the "jumpers" (actually pins soldered together, lots of work to get to those, had to remove entire board, etc) to the previous setpoint of 0.644 and using 100 microamps. Meadowlark had it set to a setpoint of 3.077 and sensor circuit resistance of 1 milliamp, with that resistance the control loop for the temperature would not have worked because the sensor voltage would have been up around 6.70 vdc, that is outside the control loop working range of 0 to 5 vdc. Now we'll have a sensor voltage of about .670 vdc, 2.5 vdc is probably ideal but that's the best we'll get with the sensor we are using and the choices of sensor circuit resistance available. The temperature is at 29.621 and climbing, I'll wait and see if it stabilizes. I'll also run the instrument to what the data look like. Thu Jun 24 23:14:01 GMT 1999 CHIP CHIP Start Patrol PSPT COMMENT: Thu Jun 24 23:14:11 GMT 1999 This ran all day without crashing. COMMENT: Thu Jun 24 23:24:11 GMT 1999 Rotated the dome 180 degrees to get sun on CHIP. CHIP COMMENT: Thu Jun 24 23:58:46 GMT 1999 temperature just passed through the high end of the ideal range, it's at 34.546 C and climbing slowly. We want it between 34.3 and 34.5 C Fri Jun 25 00:03:47 GMT 1999 CHIP End Bias Fri Jun 25 00:04:05 GMT 1999 CHIP Water Fri Jun 25 00:04:51 GMT 1999 CHIP End Water CHIP COMMENT: Fri Jun 25 00:26:24 GMT 1999 Yeehah, the temperature turned around at 36.282 and started going back down. That means there is some control and it won't get hotter than 36.282. So I can go home now and leave it on overnight. I'm not sure where it will stabilize, Eric will find out tomorrow. CHIP COMMENT: Fri Jun 25 00:35:25 GMT 1999 All but a few images look bad due to incorrect filter temperature, tomorrow they may be great again. Fri Jun 25 00:38:21 GMT 1999 CHIP CHIP End Patrol Fri Jun 25 00:39:50 GMT 1999 CHIP ending tape COMMENT: Fri Jun 25 00:42:21 GMT 1999 TAPES ***** MKIV: 99175 CHIP: C00846, its back. LOWL: L00606 in drive #0 and L00607 in drive #1 PICS: Down for repairs. Fri Jun 25 00:44:29 GMT 1999 MkIII 00_00.rawmk3 18_00.rawmk3 19_42.rawmk3 21_12.rawmk3 22_41.rawmk3 00_04.rawmk3 18_03.rawmk3 19_45.rawmk3 21_15.rawmk3 22_45.rawmk3 00_08.rawmk3 18_07.rawmk3 19_49.rawmk3 21_19.rawmk3 22_49.rawmk3 00_12.rawmk3 18_11.rawmk3 19_53.rawmk3 21_23.rawmk3 22_53.rawmk3 00_15.rawmk3 18_15.rawmk3 19_57.rawmk3 21_27.rawmk3 22_56.rawmk3 00_19.rawmk3 18_18.rawmk3 20_00.rawmk3 21_30.rawmk3 23_00.rawmk3 00_23.rawmk3 18_22.rawmk3 20_04.rawmk3 21_34.rawmk3 23_04.rawmk3 00_26.rawmk3 18_26.rawmk3 20_08.rawmk3 21_38.rawmk3 23_08.rawmk3 17_00.rawmk3 18_30.rawmk3 20_12.rawmk3 21_42.rawmk3 23_11.rawmk3 17_03.rawmk3 18_33.rawmk3 20_15.rawmk3 21_45.rawmk3 23_15.rawmk3 17_07.rawmk3 18_37.rawmk3 20_19.rawmk3 21_49.rawmk3 23_19.rawmk3 17_11.rawmk3 18_41.rawmk3 20_23.rawmk3 21_53.rawmk3 23_23.rawmk3 17_15.rawmk3 18_44.rawmk3 20_27.rawmk3 21_57.rawmk3 23_26.rawmk3 17_18.rawmk3 18_48.rawmk3 20_30.rawmk3 22_00.rawmk3 23_30.rawmk3 17_22.rawmk3 18_52.rawmk3 20_34.rawmk3 22_04.rawmk3 23_34.rawmk3 17_26.rawmk3 18_56.rawmk3 20_38.rawmk3 22_08.rawmk3 23_38.rawmk3 17_30.rawmk3 18_59.rawmk3 20_42.rawmk3 22_12.rawmk3 23_41.rawmk3 17_33.rawmk3 19_03.rawmk3 20_45.rawmk3 22_15.rawmk3 23_45.rawmk3 17_37.rawmk3 19_11.rawmk3 20_49.rawmk3 22_19.rawmk3 23_49.rawmk3 17_41.rawmk3 19_19.rawmk3 20_53.rawmk3 22_23.rawmk3 23_53.rawmk3 17_45.rawmk3 19_26.rawmk3 20_57.rawmk3 22_27.rawmk3 23_56.rawmk3 17_48.rawmk3 19_30.rawmk3 21_00.rawmk3 22_30.rawmk3 c19_07.rawmk3 17_52.rawmk3 19_34.rawmk3 21_04.rawmk3 22_34.rawmk3 c19_15.rawmk3 17_56.rawmk3 19_38.rawmk3 21_08.rawmk3 22_38.rawmk3 c19_23.rawmk3