This is a summary of normal IGRINS use for observers at the McDonald 2.7m telescope 

IGRINS & Atlas Computer Set Up

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Using the DTP

Identifying A0V Stars

Kyle has written several A0V Star worklists that can be used to identify nearby A0V stars throughout the night. Each worklist has to be uploaded to your TCS user account (only once!) for you to be able to use them throughout the night. You can download the worklists from here the Wiki or from here on Google Drive to upload them to TCS. (upload directions would be helpful here--20241206)

The worklists are organized by magnitude, so if you notice there are not many available A0V stars nearby your target try using a fainter magnitude worklist!

Closing Procedure

Some of these things can be done in any order, and some things should be done in an explicit order. When the order doesn’t matter, the text is in blue.

1. Move the telescope to Zenith

   1. Using the TCS select Next → Zenith and click yes on all of the pop-up windows

2. Close the IGRINS window cover

   1. Raise the east platform using the yellow hand paddle

   2. Close the IGRINS window cover using the handle

   3. Be sure to secure the handle using the velcro strip

3. Stow the telescope

   1. Using the TCS select Next → Stow and click yes on all of the pop-up windows

4. Close the Mirror Window Cover

   1. Using the button on the Colossus Console (the console in the dome with all the red buttons)

5. Close the dome

   1. Using the button on the Colossus Console

6. Park the dome

   1. Using the TCS select Tools → Park Dome and click yes on all of the pop-up windows

7. Close the dome doors

8. Close the dome vents

   1. Using the control panel on the East side of the dome near the door

9. E-stop the telescope

   1. Using the button on the Colossus Console

10. Turn on the passage lights (only once dome is closed fully)

    1. Using the button on the Colossus Console

11. From the control room

    1. Log-out of ATLAS

       1. Click the power button on top right hand side of the lower monitor

12. Turn off the heater in the observing room

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