Zipp02 | 24Operation Method
4.2 Measurement of Angle
Observing in the
"Normal" and
"Reverse" Posi-
tions of the Tele-
scope
The normal position of the telescope refers to observation with the object lens
facing right ahead (the vertical encoder being on the left); the reverse position
refers to observation with the object lens facing right ahead (the vertical
encoder being on the right). The mechanical errors can be offset by the
average of the values of measured in the normal and reverse positions.
Normal Reverse
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