Processing XRCF HRC Data

Getting XRCF HRC Data

The starting point are the ASC created HRC level 1 files available at SAO in directories given by:
/data/prod2/pipe/[date_code]/[trw_id]/i*/*l1/out/*evt.fits

HRC STATUS flags

• Kathy Flanagan: STATUS and FTOOLS 5/5/98
• Kathy Flanagan: HRC team discussion 4/28/98
• Mike Juda: STATUS information 3/18/98

dd's HRC processing for web page

The level 1 FITS files were processed by hrc_view.pro to produce IDL save files containing Level_1-like quantities (DETX, DETY, ENERGY, STATUS, TIME), with DETX, DETY in mm, Energy is in "quasi keV", that is PHA of 0-255 has been scaled to 0 to 10 keV.

• The HRC level 1 fits files are copied (at MIT) to /nfs/spectra/d6/HRC_data/ .
• Further processing is carried out by hrc_view.pro and sim_all_hrc.pro:
  the individual iterations are combined to produce TRW_ID_l1.idlsav similar to the combined iteration files created for ACIS data sets.
• STATUS filtering using a nominal "3FFF00" criterion was applied to select valid events.
  IDL STATUS selection: ok_es = where( (hrc_status AND '3FFF00'xL) EQ 0 , nok )

MARX simulations of the XRCF data are carried out using xrcf_sim.pro and marx_compare.pro .

• The simulation directories are (e.g., for iteration 0) /nfs/spectra/d6/MARX/[trw_id]/i0/ . These directories contain the IDL save files ml1.idlsav which when restored give the simulation "level 1" data: ml1.detx, ml1.dety, and ml1.energy.
• These directories have a file marx_commands: this lists all the changes to the nominal MARX file that are made to simulate the measurement and runs marx. It is 'sourced' by an IDL spawn.

The event color-coding schemes used for ACIS data were directly applied here for the HRC data. The colors have less information however.