HARPS DRS page

DRS 3.5

The version 3.5 of the HARPS pipeline (DRS) was installed at the telescope on October 20th 2010. The major improvements with respect to the previous version are:

  • Order extraction completely rewritten
  • Bug on extraction profile corrected
  • Use of measured extraction profile (FF frame) instead of analytic profile
  • Horne cosmic rejection improved
  • Implementation of new extraction mode with correction of ThAr pollution
  • Order localization simplified
  • Bug on flat-field (low-sensitivity pixels) corrected
  • Quality control on flat-field more sensitive (rejection of frames with wiggles)
  • Blaze computation rewritten
  • Correction of blaze for FF source spectrum (requires wavelength calibration)
  • Implementation of background light subtraction
  • Coarse cosmic rejection (4-bin distribution) improved
  • Rebinning on uniform wavelength grid rewritten (s1d creation)
  • Quality control on drift measurement more sensitive (THAR2/shutter problems)
  • Bug on mid-exposure time corrected (saturation of exposure meter)
  • Computation of activity indices S and log(R'HK) available offline, new keywords
  • Relative flux correction more robust
  • Better telluric line removal in masks G2, K5 and M2
  • Bug on CCF noise at low SNR corrected (absolute value in correlbin)
  • More instrumental keywords added in db_update
  • Rejection of order 0 in CCF computation (order partially extracted)
  • Blaze correction in CCF computation implemented
  • Comb/FP recipes added
  • Polarimeter recipes added