... Measurements of 3.5-m Secondary Mirror Motions . Contents . Introduction . Measurements and Analysis . ... precision of the Sloan Digital Sky Survey implies that focus and collimation motions of the secondary must be very smooth ...
... of telescope motion control system through direct access into the Motion Control ... Either the motion will start with a velocity of zero or the motion will decelerate ...
... Motion Controls and Fiducial System: November 11, 1998. ... Caption above photo . Charlie Briegel, Bill Boroski, and Steve Bastian started work on the fiducial and motion systems. ...
... is handled by one or two guider position axes controllers , one per axis of motion ... Hardware resets the controller and halts any motion. ... Returns immediately (does not wait for the motion to finish). ...
... Allows you to specify the magnitude, proper motion, etc. of the object. ... Date : date of observation; used for correcting proper motion and radial velocity ... PM RA/Long : proper motion in RA or Longitude, in arcsec/century. ...
... how to calculate the differential secondary motion that comes from changes in the ... this discussion primarily to distinguish these motions from those caused by changes ... The motions discussed here are superimposed on the altitude sag discussed in ...
... 5 љ class AxisLim (object): . 6 љ """Motion limits for one axis . 7 љ . 8 љ See also AxeLim: motion limits for all axes . ... 6 љ """Motion limits for one axis . 7 љ . 8 љ See also AxeLim: motion limits for all axes . 9 љ """ . ...
... Fiducials and Motion Controls: November 12 and 13, 1998. ... On Friday, 11/13, Charlie Briegel continues to work on motion controls. ... into closing position by Charlie. (its difficult to show motion in still photos ...
... is around/on the telescope which would interfere with altitude or rotator motion ... Check altitude motion via MCP: Release all stop buttons. Reset amplifier for Alt. ...
... is around/on the telescope which would interfere with altitude or rotator motion ... Check altitude motion via MCP: Release all stop buttons. Reset amplifier for Alt. ...