Lightning Shutdown Procedure
2.4-m Hiltner Telescope

(DO NOT TURN OFF THE ROUTER, SWITCH, MDM, MDM's EXTERNAL HARD DRIVE and THE SMALL UPS IN THE RIGHT COMPUTER RACK)

Last updated 2007 August 18

NOTE: IF THERE IS NO OBSERVER AT THE 1.3M TELESCOPE, THE 2.4M OBSERVER IS RESPONSIBLE FOR A LIGHTNING SHUTDOWN AT THAT TELSCOPE ALSO.

Walk through these procedures at the beginning of your run. If you have any questions about the procedures please ask. After hours call Bob or Steven (phone numbers are on the cork board, south control room wall). Lightning is a serious concern and in an emerqency do not hesitate to call anytime.

1. Stow the Telescope

If observing, follow the usual closing procedure. Stow the telescope at zenith, close the instrument hatch and mirror cover. Then close the dome, turn off the telescope drives, and press the STOP button on the telescope controller.

2. Shut Down Computers

Workstations and Servers

There are a number of computers in the 2.4m computer room that must be properly shutdown: The Linux computers hiltner, agung and vesuvius, the remaining Solaris data-taking machine is krakatoa, and there are two WindowsXP machines used for the weather station and the CCDS slit viewing camera. Each needs to be shutdown properly if they are turned on:
  1. If using vesuvius (MDM8K), log off first, then log back in as user "shutdown", password "haltsystem". This will turn off the computer. If it doesn't power all the way off, press the front panel power button on its box in the rack. Alternatively you can login as the normal user and type "shutdown" and then answer "Y" at the prompt.

  2. If using krakatoa (ccdcom), login to its console (in the computer room) as "shutdown", password "haltsystem". This will halt the computer. When it is done, turn off the power switch on the back near the power cord. Alternatively, you can login as the normal user and type "shutdown" and then answer "Y" at the prompt.

  3. Login to agung and hiltner as the regular observing user via ssh in turn. At the Unix prompt type "shutdown" and answer "Y" to the question. Make sure each has shutdown before proceeding to the next computer in the list. The shutdown should power off the computer, you can tell by looking at the front panel lights.

  4. Windows XP computers (weather and CCDS aquisition camera computer). These computers are located in the small rack on the south wall of the computer room. Power down the weather computer by holding power botton for about 10 seconds until the computer turns off. If using CCDS, power down the CCDS aquisition camera the same way.

  5. If using CCDS or TIFKAM, power off the IC computer by quitting out of the data-taking program ("quit" command at the IC keyboard), then turning off the PC's power when you get the DOS prompt.

Air-Bag Computer (left computer rack):

  1. On the air-bag computer keyboard type "CL" and wait for the air bags to deflate. The columns on the monitor to read are: Bag1:W, Bag2:SE, Bag3:SW. When inflated, the Bag readings are each about 1400 pounds. They should come down to approximately +/- 30 when deflated. After the airbags are deflated then type QQ to get out of the program.

  2. DO NOT TURN THE AIR-BAG COMPUTER OFF: It will power down when the main UPS power is turned off and will restart the program automatically when the UPS power is turned back on.

TCS PC & Power Supply (middle computer rack):

CAUTION: Do these steps in this order:
  1. [Omit this step only in an emergency] There is a TCS mouse next to the TCS switch panel in the control room. To shut down the TCS control program, left click on the little yellow telescope icon at the upper left of the screen and select "Close" on the drop down menu and close the TCS program. Then click on "shutdown" at the bottom of the screen. When a Workplace shell appears click" ok" and wait for the machine to finish shutting down.

  2. When it says it is safe, go to the computer room and turn off the TCS PC using the horizontal [0 1] switch on the front panel of the TCS PC.

  3. Finally, turn off the TCS power supply (vertical silver toggle switch under the green light), which is just below the TCS PC. Do NOT turn off the silver TCS power supply switch until the TCS computer is OFF.

3.Turn Off UPS Power

Out in the dome there is a room in the northwest corner with UPS BREAKERS in red on the door. In the room there is a circuit breaker panel (red in color). Turn off Breakers 2B, 4, 5 and 6 (marked). This will kill all power to the computer rack and turn off the power to the instruments on the telescope.

TO RESTART DO EVERYTHING IN REVERSE ORDER.

In particular, when turning the BREAKERS back on, turn on breaker 2B first wait a few seconds then turn on breaker 4 wait a few seconds then turn on breaker 5 wait a few seconds then turn on breaker 6. After the breakers are on then continue.

Turn on the power supply below the TCS PC before turning on the TCS PC. If restarting the CCDS or TIFKAM, make sure you powerup the IC computer.

Turn on hiltner and agung computers using the power buttons on their front panels.

Check the instrument and telescope for correct operation. If using a CCD, take a test exposure to be sure that the shutter is opening correctly and light is reaching the detector.

After INITIALIZING the xmis "double click on the RETROCAM out button to insure that RETROCAM's prism is truly out"

Revised: 08/18/2007 [R.A. Barr, J. Halpern & R. Pogge]