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Old Dome Opening Procedure
Old Dome Opening Procedure
- Open the doors on the east and west sides of the dome.
- Use the panel near the east door to open the louvers. You do not need to hold the knob down.
- Go to the TCS monitor in the dome to check red status indicators.
- "Console Not Reset" on the TCS monitor means that you should push the red "Reset" button to proceed.
- You should now see the messages "HA Brakes On", "Dec Brakes On", "No Hydraulic Pressure."
- Go to the old control room and press each of these buttons:
- Return to the console and press "Reset" again. There should be no messages on the TCS now.
- You must check the rotation of IGRINS and open the slide on the calibration box.
- The home position of the IGRINS rotator are at 393 on the encoder, and when the markings align.
- The slide is located at the entrance to the instrument and has two locking fasteners that must be secured in both the opened and closed positions.
- The home position of the IGRINS rotator are at 393 on the encoder, and when the markings align.
- Before opening the dome, check that the Dome Open Conditions are met.
- Open the slit by holding the "Dome Open" button on the console and then move the windscreen to the stow position using the hand paddle.
- Press the "Cover Open" button on the console until illuminated/on to open the mirror cover.
- You are now open and ready to observe.
- Be sure to check conditions regularly and abide by the Dome Closure Rules. Pay close attention to the IGRINS rotation and cable clearance throughout the night.