Sigma QUick Infrared Camera - Manuals

Page 3 - System Overview; Table 1. QUIRC pixel scales; Near-Infrared Observing Techniques; m) generally requires more effort than at optical wavelengths,

October 30, 1997 1 1 System Overview The University of Hawaii (UH) QUick Infrared Camera (QUIRC) utilizes a 1024 1024 pixel HgCdTe Astronomical Wide Area Infrared Imaging (HAWAII) array produced by Rockwell ScienceCenter. This array is sensitive to radiation from 1 to 2.5 m. The reimaging optics pro...

Page 5 - QUIST sensitivity; Setup and Observing with QUIRC

October 30, 1997 3 2.2 Dewar Temperature The dewar now has a temperature sensor and heater. For normal operation, the temperature controllershould be used to set the detector temperature to 80.0K. If the controller is not used, drifts can occuras the telescope is moved, resulting in dark current ins...

Page 6 - Workstation setup; io

4 QUIRC User Guide 3.1 Workstation setup The program is run from a workstation in the control room, currently io (or halley on the 88”). There is one configuration file that qcdcom reads upon startup to determine the telescope, secondary, and other information. There are four preset configuration fi...

Page 7 - QCDCOM Setup and Operation

October 30, 1997 5 3.2 QCDCOM Setup and Operation The qcdcom program should be run from the directory where you want your data to be written,though this can be changed from within qcdcom using the cd command. So execute the following commands: % cd /scr/data (or wherever your data should go) % qcdco...

Page 8 - Taking exposures

6 QUIRC User Guide below. This puts the program into a mode that will be appropriate for most observing, and will atleast allow one to obtain “normal” images. The description of the auto command below lists the parameters to be set. The proper defaults are # resets 1, shutter on, readout on, write o...

Page 9 - Writing Scripts and Taking Mosaics; file, where file is the filename of the; Filters and Focusing

October 30, 1997 7 4 Writing Scripts and Taking Mosaics Any sequence of qcdcom commands can be entered into a text file (using your favorite editor) andexecuted by qcdcom. The command to do this is source file, where file is the filename of the command list. This allows some routine types of observa...

Page 10 - Focusing; focus

8 QUIRC User Guide positions are available for filters. These will include the standard broadband filters J, H, K, K 0 , and H+K. In addition there will usually be several narrowband and other special purpose filters installed.Below is a list of the current filters as of the date of this manual. The...

Page 11 - Taking Dark Frames; Cold Restart

October 30, 1997 9 5.2 Taking Dark Frames Since there is no blank position in the filter wheel and the shutter is warm, some extra care is required toobtain reasonable dark frames. With the installation of the second filter wheel, a “LOWFLUX" settinghas been provided. This setting selects two fi...

Page 12 - Setting up; obs; Image display options

10 QUIRC User Guide program is described here. 7.1 Setting up The setup file .vf-init has been installed in the home directory of the user obs . If running from a different user name, you must have this file in your home directory, as well as the *.cm files and ps proc . The program can be run by ty...

Page 13 - QCDCOM commands; arguments, and square brackets indicate optional arguments.; DSP initialization commands; to load correct code. Remember that it

October 30, 1997 11 The TCS coordinate window (under Options) can be used to center a source or move it around thearray at the 88-inch. The plate scale defaults to the f/10 scale (0.1886 arcsec/pix), for the f/31 scale itis 0.0608 arcsec/pix. First move to the source and press the “f" key, it wi...

Page 14 - Commands for setting up and taking exposures

12 QUIRC User Guide > ll h file i Read DSP code .lod file ll reads a DSP code binary file into the Sparcstation memory. > dl hi Download DSP code dl sends the DSP code to the DSP electronics, and then causes the DSP to start executing this code. dl also asks the DSP to recalibrate its A/D conv...

Page 19 - Diagnostic commands

October 30, 1997 17 > sound hi Toggle fancy sounds Qcdcom will use distinctive sounds for various operations. If you don’t want to listen to them you can turn them off with the sound command. > synch hi “Ping” the DSP by sending it data and asking it to send it back. This is useful to check to...