Telescope Pointing Procedure

  1. Enter the next targets coordinates into the TCS.
  2. Check the objects observability in the window that displays the telescope limits.
  3. Choose the 'Go Next' option on the TCS.
  4. Go out into the dome and hold down the 'Autoslew' button. Watch clearances as the telescope slews to the target.
  5. Once on target return to the control room and take a test image with the IGRINS Slitview Camera.

 

  1. After the initial slit view image has displayed then look for your target in the field. 
  2. If you don't see your target, but you see other stars, check that your exposure time is sufficient.
  3. To search for your source start by nodding to the obscured region of the slit view image.
  4. Spiral out from the start to systematically search. Steps of ~70 arcseconds are appropriate.
  5. Do not waste time 'poking around' on the sky. If you can't find your source:
    1. Check your coordinates and your understanding of the dithering procedure.
    2. Check pointing on a nearby bright star and Zero the Telescope Pointing in TCS.
    3. Find wider FOV finder charts and offsets to get from a nearby bright star to your source.
  6. Once you have found your target, then follow the guiding procedures on the manuals page.