HIRedux Calibs and Pre-Reduction

HIRES Suggested Calibrations

1. MOST IMPORTANT: Make a strong effort to take Calibs with the same exact setup as the obsevations.
   This is trivial except for XDANGL which bounces around. Try hard to get it to within 0.0005
2. 10 trace flat images (per setup)
   Note - It is recommended to take a set of Arcs right before and/or after
   creating the trace flats
3. Arc Calib:
   • One pair taken at the same time as the trace flat
   • One image taken before (or after) each set of science exposures
4. One Standard star     (each setup)
   • This is optional
   • It does help with fluxing and coadding

Pre-Reduction Setup

• Computer Resources
  • >600 MHz processor
  • 20G disk space / night
  • 1G RAM
  • Linux, Solaris, MacOSX
• Solaris WARNINGS (These do not apply to Linux and less to MacOSX)
  • Solaris+IDL does not release memory until IDL is exited
  • Consider exiting IDL occasionally and monitor memory usage
  • IDL+Solaris freezes up on the CPU intermittently
    • Possibly bug in licensing software
    • Forced to kill IDL process and restart
• Software
  • gcc or cc
  • IDL v6.1 or higher (most and maybe all of the code will work with v5.4)
  • IDL packages
    1. idlutils SDSS IDL package (Burles/Schlegel/Sloan)
    2. idlspec2d SDSS IDL package (Sloan public)
    3. xidl XIDL package (JXP)
    4. HIRES HIRES package (Burles)
• Log sheets [somewhat optional]
• This cookbook