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====VATT====

**1.8m  OPTICAL  TELESCOPE**



**Remote Operations**









**Telescope Start-up/Shutdown**



**Checklist**











|    |  **Signature**  |  **Date**  |
|Prepared|K. Duffek, J. Hoscheidt|12-May-21|
=====Reviewed=====

=====Approved=====






  *Revision History





|**Issue**|**Date**|**Changes**|**Responsible**|
|a|12-May-21|Initial Release|K. Duffek, J.Hoscheidt|
|||||
|||||
|||||



 


  *List Of Abbreviations



VATTEL	VME computer controlling the Telescope

Neslab		Primary Mirror cooling system



  *About this document






=====Purpose=====



The purpose of this document is to provide a detailed startup/shutdown procedure for remote operation of the Vatican 1.8m Telescope.






=====Reference Documents=====



[RD1]	Vatican 1.8m Telescope Operators Manual.

[RD2]	Lightning shutdown procedure.		





	







	



	









  *Start-up




===== General	=====



  *Verify all doors are locked.
  *Close all blinds, shut off unneeded lights, turn off TV. 






====  Computer Room====



  *Power up VATT computer rack beginning with VATT Data computer.
  *Wait 20 minutes for VATT Data to boot up.
  *Then boot all other rack computers in no particular order.



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====Dome====



  *Check that filters have been installed in the filter wheel and their positions recorded for the observer.
  *Top off the science camera with LN2.
  *Remove Dome Short.
  *Plug in Dome Shutter power into 120ac outlet.
  *Plug in finder scope camera power located on top of grey box on right fork.
  *Turn 4Kccd camera power ON.
  *Turn ON 4Kccd camera shutter box.
  *Turn ON guide camera power at the guide camera controller.
  *Remove finder scope cover.
  *Plug in stow pin power supply located on left fork. Switch ON.
  *Remove stow pins pressing "unlock" on momentary switch until display reads 100 approximately.
  *Visually verify the pins are out. Switch OFF, then unplug.
  *Make sure Telescope is free to move and is clear of any obstacles.








====Pier Stairwell Second floor====



  *Power up Neslab and immediately open gate valve on right side of unit.
  *Verify red lines on Neslab pneumatic valve change from perpendicular to parallel.








====VATTEL Room====



  *Plug in GPS antenna, power unit up and wait for GPS lock before proceeding to next steps.
  *Power up VATTEL.
  *Power up VATT Guider.
  *Power up VATT Secondary.
  *Flip ON all drive amplifier power switches (except counter weights) and observe current meters are OFF except for the Dome amp.






====Basement====



  *Power up building exhaust fans and pier fans in the oil pump room.
  *Read oil temperature; it should be 61 degrees Fahrenheit.
  *Power up oil pump following the front panel steps.
  *Wait for chiller to come up and allow a few minutes to mix oil. Watch for jump in temperature reading.
  *Watch gauge pressure rise to operating range. Make sure oil pressure reads 1,180 psi with no apparent oil leaks.
  *Verify green lights on panel by door.
















====Dome====



  *Align azimuth ring arrows on base of scope. 
  *Turn OFF all lights in dome.






====Control Room====



  *Power ON the Dome, All sky, and Finder monitors as well as Dome Intercom (Note dome 1 button flakey; dome 2 cannot hear).
  *Make a Skype call to the Observer letting them know the Telescope is ready for observing.
  *Power up the Dome Fan after the Dome Slit and Mirror Cover has been opened. The controller is on the south wall to the right of the back door.
  *Give observers temp, humidity, wind speed and wind direction from weather station when open (note to talk to Tom Folkers about getting info from SMT)









  *Shutdown




=====Control Room=====



  *Turn Dome Fan OFF.
  *Have observer stow scope, close mirror covers, close dome, home dome and kill amplifiers.
  *Give observers temp, humidity, and wind speed and wind direction from weather station upon closing.
  *Turn OFF Guider, Finder and Sky monitors.






====VATTEL Room====



  *Turn OFF all amplifier power switches: Azimuth Servo, Derotator, Elevation Servo, Dome
  *Verify that all current meters are OFF.








====Pier Stairwell, Second Floor====



  *Shut gate valve on right side of Neslab until almost closed then immediately switch Neslab power OFF and close gate valve all the way.
  *Verify red lines on Neslab pneumatic valve change from parallel to perpendicular.




====Basement====



  *Turn OFF oil pump in reverse of start up. After Step 2 pause and wait for loudest noise to subside (main pump). Complete Step 1.
  *Turn OFF pier and building fans.

 






====Dome====



  *Verify dome closed!
  *Plug in stow pin power supply. Switch ON.
  *Engage stow pins pressing "lock" on momentary switch until display reads 000 approximately.
  *Visually verify the pins are in. Switch OFF, then unplug.
  *Turn Guider camera OFF.
  *Close finder scope cover.
  *Turn OFF 4Kccd camera shutter power supply (leave on if observations continue).
  *Turn OFF 4Kccd camera power supply (leave on if observations continue).
  *Unplug finder camera power located on top of grey box on right fork.
  *Unplug Dome Shutter power.
  *Install Dome Short.
  *Check dome fiduciary mark on wall against position of bolt on underside of dome ring and note the error; if error greater than 5º, have Gary reset Dome 0.
  *Fill Dewar (if needed) and record fill time on clipboard.
  *Turn OFF lights in dome.










====Control Room====



  *Turn OFF Dome Flood light.
  *Turn OFF Dome monitor.
  *Turn intercom OFF.
  *End Skype call with observer.
  *Lock all doors that may have been unlocked during the night before going to bed.



















**--oOo--**



Doc_info_start

Title: //VATT Telescope startup/Shutdown//

Document Type: //Checklist//

Source: Vatican Observatory

Issued by: //K. Duffek//

Date_of_Issue: //12-May-21//

Revised by:

Date_of_Revision:// //

Checked by:

Date_of_Check:

Accepted by:

Date_of_Acceptance:

Released by:

Date_of_Release:

File Type: MS Word

Local Name: //VATT Telescope startup/Shutdown//

Category: //##?//

Sub-Category: //##?//

Assembly: //Fill in Assembly name here//

Sub-Assembly:

Part Name:

VATT Archive: //##?//

Revision: //a//

Doc_info_end
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