TELESCOPE OPERATIONS

Precision Telescope Control System

Background information on items related to active control of the antenna.

Specific Operating Procedures:

Status of Specific PTCS Components

PTCS Component/System	Current Status	Remarks
Active Surface Servo System	Operational	Outages significant depending on extent and observing planned.
Active Surface Control Software	Operational	All outages significant.
Dynamic Corrections	Operational	All outages significant when in use.
Dynamic Corrections Monitor GUI	Operational
Structural Temperature System	Operational	All outages significant.
Air Temperature System	Operational
GBT FITS Monitor GUI	Operational
Inclinometers	Non-Operational	Ignore related system problem messages unless otherwise directed
Accelerometers	Non-Operational	Ignore related system problem messages unless otherwise directed
Quadrant Detector	Non-Operational	Ignore related system problem messages unless otherwise directed

PTCS Component Selection by Receiver

PTCS Component	Prime Focus	L-Band	S-Band	C-Band	X-Band	Ku-Band	K-Band	Ka-Band	Q-Band	Penn Array
Active Surface Servo power	Off	On	On	On	On	On	On	On	On	On
Active Surface Zero Offsets	Selected	Selected	Selected	Selected	Selected	Selected	Selected	Selected	Selected	Selected
Active Surface FE Model and Zernike	Not Selected	Not Selected	Not Selected	Selected	Selected	Selected	Selected	Selected	Selected	Selected
Dynamic Corrections	Not Selected	Not Selected	Not Selected	Selected	Selected	Selected	Selected	Selected	Selected	Selected

Component selection during PTCS testing will be at the discretion of the observer.

-- DavidRose - 6 Feb 2008

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