Prepare for Observing
Before pointing SPARO at astronomical sources the following
procedures must be performed.
- Set up the Chopper. SPARO requires a square wave chop
with about a 1 degree throw and a 3.1 Hz frequency.
- Set the phase on the data system. To begin with, start with
the value arrived at during the summer tests. It is listed in the
Open the Blank off wheel. The closed position should read 600
on the turn counter. The open position is 000, arrived at via a
counter clockwise rotation of 6 turns. (I.E. 000: open, 600: closed,
never go through 800)