SPIRIT 1 & 2 are on-line and available for booking.
Step 1: A login is required to access SPIRIT.
Step 2: Check the local weather conditions.
Step 3: Check the telescope bookings calendar for availability.
Step 4: Make a booking request. Note: The weekend booking deadline is Friday morning.
Step 5: On the night of your scheduled booking, you can access your booked telescope here: