+----------------------------------------------------------+ | HST Spectroscopy STIS/GHRS/FOS | | STScI Analysis Newsletter Sep 2001 | +----------------------------------------------------------+ ST-ECF Post Operational HST Archives Errors in Processed TIME-TAG Data from STIS Now Corrected CALSTIS V2.11 Release Notes Improvement in STIS Echelle Dispersion Solutions +-FOS------------------------------------------------------+ ST-ECF Post Operational HST Archives The Post-Operational Archives (POA) branch of the Space Telescope - European Coordinating Facility (ST-ECF) has taken over the main responsibility of FOS (re-)calibration. Their web pages contain all of the information that was previously on the STScI FOS pages, supplemented with more recent FOS news including a new and improved version of the FOS calibration pipeline (POA_CALFOS), which replaces CALFOS in the standard IRAF/STSDAS FOS calibration. We invite you to check out their web pages. +-STIS-----------------------------------------------------+ Errors in Processed TIME-TAG Data from STIS Now Corrected As discussed in the March 2001 STAN, various errors may exist in TIME-TAG datasets. New archive software installed on 13 Sep 2001 repairs all known problems in TIME-TAG datasets. Every dataset retrieved after 13 Sep 2001 should be free of TIME-TAG errors. CALSTIS V2.11 Release Notes Calstis Version 2.11 was installed in the OTFR pipeline on 2001-Sep-13. It is available for download in the new STSDAS release, Version 5.11, which can be found at the STSDAS Advisories page. Below we give more details on changes that are likely to be noticed by users in their data. Improvement in STIS Echelle Dispersion Solutions The latest CALSTIS release (13.1) explicitly considers monthly offsets when determining echelle wavelength solutions, yielding more robust and accurate wavelength solutions. +----------------------------------------------------------+ | Need help? http://www.stsci.edu/hst/stis/help.html +----------------------------------------------------------+ | To subscribe or unsubscribe to the STAN, send a message | to majordomo@stsci.edu with a blank subject line and | the following in the body: [un]subscribe stis_news +----------------------------------------------------------+ | The Space Telescope Science Institute is operated by the | Association of Universities for Research in Astronomy, | Inc., under NASA contract NAS5-26555. +----------------------------------------------------------+
