----------------------------------------------------------------------------- Mauna Loa Solar Observatory Observer's Log ----------------------------------------------------------------------------- Sat Oct 31 16:44:51 GMT 1998 Year: 98 Doy: 304 Observer: koon Sat Oct 31 16:46:03 GMT 1998 CHIP Startup--Initializing new tape Sat Oct 31 16:50:19 GMT 1998 MKIII Start Patrol Sat Oct 31 16:50:31 GMT 1998 PICS Start Patrol Sat Oct 31 16:50:31 GMT 1998 PICS Start Patrol Sat Oct 31 17:00:35 GMT 1998 PICS Flat Sat Oct 31 17:02:08 GMT 1998 PICS End Flat Sat Oct 31 17:02:50 GMT 1998 CHIP Bias Sat Oct 31 17:03:45 GMT 1998 CHIP End Bias Sat Oct 31 17:04:00 GMT 1998 CHIP Water Sat Oct 31 17:04:41 GMT 1998 CHIP End Water Sat Oct 31 18:00:37 GMT 1998 PICS Flat Sat Oct 31 18:01:48 GMT 1998 CHIP Bias Sat Oct 31 18:02:06 GMT 1998 PICS End Flat Sat Oct 31 18:02:47 GMT 1998 CHIP End Bias Sat Oct 31 18:03:01 GMT 1998 CHIP Water Sat Oct 31 18:03:41 GMT 1998 CHIP End Water Sat Oct 31 19:00:37 GMT 1998 PICS Flat Sat Oct 31 19:00:58 GMT 1998 CHIP Bias Sat Oct 31 19:02:10 GMT 1998 PICS End Flat Sat Oct 31 19:02:10 GMT 1998 PICS End Flat Sat Oct 31 19:02:19 GMT 1998 CHIP Water Sat Oct 31 19:02:56 GMT 1998 CHIP End Water Sat Oct 31 19:27:22 GMT 1998 MKIII Start Cal Sat Oct 31 19:47:48 GMT 1998 MKIII Start Patrol Sat Oct 31 20:00:47 GMT 1998 CHIP Gain Sat Oct 31 20:00:47 GMT 1998 CHIP Gain Sat Oct 31 20:02:27 GMT 1998 PICS End Flat Sat Oct 31 20:05:35 GMT 1998 CHIP End Gain Sat Oct 31 20:05:44 GMT 1998 CHIP Bias Sat Oct 31 20:06:34 GMT 1998 CHIP End Bias Sat Oct 31 20:06:44 GMT 1998 CHIP Water Sat Oct 31 20:07:20 GMT 1998 CHIP End Water **PICS PROBLEM**: Sat Oct 31 20:37:18 GMT 1998 The occulting varies a lot more than it did before the MKIV installation. Probably due to Spar balance, I'll check balance when I get a chance. **PSPT PROBLEM**: Sat Oct 31 20:38:37 GMT 1998 I checked the relays in the dome controller box, nothing obviously wrong looking. There are 2 solid state relays (5vdc to 135vac) for computer control and 2 large mechanical relays for dome movement control. The 135 vac is strange and probably related to the 30 vac difference between Neutral and Ground that we have on the new wing due to the new isolation transformer. The mechanical relays sometimes chatter when the box power switch is left on, this happens even if the computer control cable is disconnected from the solid state relays. Maybe those solid state relays are bad or maybe that elevated Neutral is causing a problem. I'll try to do some DMM measurements when the relays are chattering to see where the voltage change is coming from. Normal inputs are +5vdc for all 4 solid state relay wires and ~135 vac for all 4 mechanical relay wires (to coils) when the dome is at a state of rest and the power switch is on for the box and the PSPT program is running. MKIV COMMENT: Sat Oct 31 20:57:30 GMT 1998 It looks like there is enough room for todays files, /local/d is only up to 70% full, from about 40% this morning. Sat Oct 31 21:00:36 GMT 1998 PICS Flat Sat Oct 31 21:01:47 GMT 1998 CHIP Bias Sat Oct 31 21:02:08 GMT 1998 PICS End Flat Sat Oct 31 21:02:42 GMT 1998 CHIP End Bias Sat Oct 31 21:03:10 GMT 1998 CHIP Water Sat Oct 31 21:04:01 GMT 1998 CHIP End Water **PSPT PROBLEM**: Sat Oct 31 21:58:49 GMT 1998 I checked the voltages at the relays when the directional relay was chattering, the solid state relay was closing the switch on the high voltage output side even though the input wires both stayed at +5 volts. So that solid stae relay needs to be replaced, I can't see any brand but the model number is OAC5-A. Cycling the power to the box resets the bad relay switch back to the open position. CHIP End Bias Sat Oct 31 22:03:00 GMT 1998 CHIP Water Sat Oct 31 22:03:40 GMT 1998 CHIP End Water Sat Oct 31 22:18:08 GMT 1998 MKIII End Patrol Sat Oct 31 22:24:26 GMT 1998 PICS End Patrol Sat Oct 31 22:24:34 GMT 1998 CHIP CHIP End Patrol Sat Oct 31 22:27:46 GMT 1998 CHIP ending tape COMMENT: Sat Oct 31 22:47:57 GMT 1998 TAPES: ****** PICS: P01332 CHIP: C00717 LOWL: L00553 in drive #0. MKIV: 98304 Sat Oct 31 22:49:15 GMT 1998 MkIII 16_50.rawmk3 17_55.rawmk3 19_01.rawmk3 20_17.rawmk3 21_22.rawmk3 16_53.rawmk3 17_59.rawmk3 19_04.rawmk3 20_20.rawmk3 21_25.rawmk3 16_57.rawmk3 18_02.rawmk3 19_07.rawmk3 20_23.rawmk3 21_29.rawmk3 17_00.rawmk3 18_05.rawmk3 19_11.rawmk3 20_27.rawmk3 21_32.rawmk3 17_03.rawmk3 18_08.rawmk3 19_14.rawmk3 20_30.rawmk3 21_35.rawmk3 17_06.rawmk3 18_12.rawmk3 19_17.rawmk3 20_33.rawmk3 21_39.rawmk3 17_10.rawmk3 18_15.rawmk3 19_20.rawmk3 20_37.rawmk3 21_42.rawmk3 17_13.rawmk3 18_18.rawmk3 19_24.rawmk3 20_40.rawmk3 21_45.rawmk3 17_16.rawmk3 18_22.rawmk3 19_30.rawmk3 20_43.rawmk3 21_48.rawmk3 17_19.rawmk3 18_25.rawmk3 19_37.rawmk3 20_46.rawmk3 21_52.rawmk3 17_23.rawmk3 18_28.rawmk3 19_44.rawmk3 20_50.rawmk3 21_55.rawmk3 17_26.rawmk3 18_31.rawmk3 19_47.rawmk3 20_53.rawmk3 21_58.rawmk3 17_29.rawmk3 18_35.rawmk3 19_51.rawmk3 20_56.rawmk3 22_01.rawmk3 17_33.rawmk3 18_38.rawmk3 19_54.rawmk3 20_59.rawmk3 22_05.rawmk3 17_36.rawmk3 18_41.rawmk3 19_57.rawmk3 21_03.rawmk3 22_08.rawmk3 17_39.rawmk3 18_44.rawmk3 20_01.rawmk3 21_06.rawmk3 22_11.rawmk3 17_42.rawmk3 18_48.rawmk3 20_04.rawmk3 21_09.rawmk3 22_15.rawmk3 17_46.rawmk3 18_51.rawmk3 20_07.rawmk3 21_12.rawmk3 c19_27.rawmk3 17_49.rawmk3 18_54.rawmk3 20_10.rawmk3 21_16.rawmk3 c19_34.rawmk3 17_52.rawmk3 18_58.rawmk3 20_14.rawmk3 21_19.rawmk3 c19_41.rawmk3