User's Guide to the Prime Focus Camera


Table of Contents


Introduction
Description
Hardware Overview
Software Overview
Detector Characteristics
Plate Scale and FOV
Filters
Count Rates
PFCam User Interfaces
Dashboard
Top-end Interface
CCD Interface
Soundserver
Observing with PFCam
Starting the Software
Observing Hints
Illustrations
3-D representation
2-D representation
CCD diagrams
PFCam layout

Mt. Hamilton Homepage

Software Overview

User Interfaces

PFCam is controlled by a number of programs running in concert. The observer interacts with the instrument via three user interfaces. Each is described in detail under PFCam User Interfaces. Their functions are outlined in the following table:

Dashboard Top-end Interface CCD Interface
  • guider filters
  • science filters
  • science CCD focus
  • guider E-W scanning
  • telescope focus
  • ADC's
  • flat-field lamps
  • CCD parameters
  • exposures
  • Two additional programs are of interest to the observer: the soundserver and guidercopy. Though not strictly instrument control, and not essential to the operation of PFCam, the soundserver and guidercopy are useful observing aids. Each is described in another section of this manual.

    Component Distribution

    From the user's perspective, all the PFCam software runs on on the host gouda.ucolick.org, but in fact, most of the programs are distributed across the two hosts shanepc and pfcampc. The soundserver (responsible for the bells, beeps, and squawks signaling exposure events) is run on gouda for hardware reasons. The following table shows the distribution of all PFCam's software components.

    Summary of PFCam software distribution
    program host UI function
    pfcamdispatch shanepc no Governs communication between rest of software
    adctrack shanepc no Computes position of ADCs
    dashboard shanepc yes GUI control of PFCam motors
    mosdispatch shanepc no Governs communication with Top End motors
    mosui shanepc yes UI for Top End motors
    pfcamstart pfcampc yes PFCam data taker
    pgEvent2Music pfcampc no Monitor program for exposure events
    eventsounds gouda yes Generate sounds for exposure events