Specifications

Doc Number: VIS-ANA-VER-01001-9002
Date: 27 May 2004
Issue: 5.0
Page: 17 of 80
Author: J. Delgadillo
Controls Preliminary Design Report Issue 5.doc
FIGURE 4.2.B – VISTA CONTROL LOOP BLOCK DIAGRAM
4.2.2 MCS Performance Summary
Following is a summary of mount performance requirements:
TABLE 4.2.C - Performance Requirements
AD01 Spec VISTA SPECIFICATION MCS CAPABILITY
8.3
Axis Velocities and Accelerations
AZ Velocity +/- 2°/sec
ALT Velocity +/- 2°/sec
CASS Velocity +/- 3.6 °/sec
AZ Acceleration +/- 0.5 °/sec
2
ALT Acceleration +/- 0.5 °/sec
2
CASS Acceleration +/- 1.0 °/sec
2
(Refer to AD03)
AZ Velocity +/- 2°/sec
ALT Velocity +/- 2°/sec
CASS Velocity +/- 3.6 °/sec
AZ Acceleration +/- 1.0 °/sec
2
ALT Acceleration +/- 1.0 °/sec
2
CASS Accel +/- 2.5 °/sec
2
8.5.2
Open Loop Tracking
0.10 arcsec rms over 15 secs
0.25 arcsec rms over 5 min
(Refer to AD04)
0.070 arcsec rms over 15 sec
0.217 arcsec rms over 5 min