Index
flexure flexure, [camera=?]
Enter the measured gravitational flexure of the telescope.
- Arguments:
-
Flexure flexure
- The gravitational flexure of the mount (degrees per cosine of
elevation).
- Optional Arguments:
-
Camera number
- The number of the associated optical pointing camera. If
this is omitted, the pointing model of the currently
selected camera is configured.
- Example:
- The following example tells the control system that to point at
an elevation of
el
degrees it must actually point
the telescope at an elevation of:
el' = el - 0:0:0.5 * cos(el)
degrees.
flexure 0:0:0.5
- Context:
- As the elevation of the telescope changes, the load distribution
on the mount changes. This can lead to an elevation dependent
elevation offset. The design of the CBI should make this constant
insignificant, but it remains to be seen if this is the case.
Martin Shepherd (30-Aug-1998)