News about Science Data Product ForumWe would like to draw your attention about the existence of the Science Data Products internet forum which can be found at: http://www.eso.org/sci/data-processing/forum.html
On this page, we list the main changes that affected the instrument and this web site. For news on possible problems see also this QC page.
- 15 February 2013: It was discovered that due to a bug in the associated software, MOS calibrations taken since July 13, 2011 were systematically taken without slit #19. In other words, there has been no FLAT or WAVE taken for this slit since the above mentioned date.
- August 2012: from 10 to 15 of August the instrument was operated with the E2V (blue) mosaic, due to a failure in the control electronics of the MIT (red) mosaic.
- January 2010: the paper by Moehler et al.: Correction of Field Rotator-Induced Flat-Field Systematics has been published.
- April 2009: FORS1 decommissioned
- September 26, 2008: P83 proposers wishing to use grisms not covered by the Standard Instrument Configuration should be aware that such requests will not be considered for Service Mode. For Visitor Mode proposals, users should propose for and base their time request on a grism covered by the Standard Instrument Configuration (found in Section 2.2 of the manual). In addition to this, they should include a description of the gains that could be made from using a grism previously available on FORS (eg. 600V, 1200g). Such requests will be considered on a case-by-case basis during the technical evaluation.
- September 1, 2008: There was a error in Table 2.1 of the manual showing the "Standard Instrument Configuration". This has now been fixed and the information can also be found from the following link.
- August 29, 2008: Important information from the P83 Call for Proposals - "Firstly, the polarimetric capabilities previously offered on FORS1 will be transferred to FORS2. They will be available on FORS2 for observations during P83. Secondly, the blue-optimized E2V CCD that is currently on FORS1 will be available for Visitor Mode observations with FORS2 during the second half of P83. Finally, the standard instrument configuration for Service Mode observations with FORS2 has changed to incorporate a number of the high-throughput filters and VPH grisms previously used on FORS1". We will update this information as it becomes available during the semester. Users should consult the P83 FORS user manual, available here.
- March 1, 2008: Important extract from the P82 Call for Proposals - "The polarimetric capabilities of FORS1 will only be offered during the first half of P82. After this time, FORS1 will be offered in its standard configuration with the exception of the IPOL and PMOS modes. Due to the arrival of X-Shooter at the Cassegrain focus of UT2, it is expected that FORS1 operations will end during the second half of P82."
- February 27, 2008: Updated FORS1 standard instrument configuration - The R_BESS filter is moved to from Wheel 1 to Wheel 3 and the I_BESS filter from Wheel 3 to Wheel 1. This means R_BESS will be available for IPOL observations, but I_BESS will not.
- July 16, 2007: Links to documents relating to the "FORS absolute Photometry Project" added to web page here.
- May 21, 2007: FORS spectroscopic pipeline released. See the DFS pages for more details here.
- April 12, 2007: These webpages are updated to take into account the new blue FORS1 detector.
- April 1 to April 6, 2007: The second commissioning of the new blue sensitive E2V CCD on FORS1 is completed with success. The new camera and new high throughput broad band filters are then already offered in P79.
- March 1, 2007: The new mosaic CCD will be offered on FORS1 for the beginning of P80 at the latest, so all P80 proposers should read the information at Blue upgrade to find details of the enhanced capabilities of the instrument. In addition the standard configuration of FORS1 will change from P80 to incorporate the new filters.
- January 30 to February 4, 2007: First commissioning of the new blue sensitive E2V CCD on FORS1
- November 28, 2006 to December 9, 2006: FORS1 annual maintenance (LADC cleaning, new calibration screen).
- November 28, 2006 to December 6, 2006: UT2 M1+M3 mirrors re-coating.
- April 1, 2006 : A new HIT mode, the 'multiple-shift' mode, is available on FORS2 for fast simultaneous spectroscopy of science and reference targets.
- April 1, 2006 : A new high through-put Volume Phased Holographic grating is offered for FORS1. The new 1200B grism covers the range 373-497nm with a dispersion of 0.61Å/pixel and replaces the 1200g grism in the FORS1 standard grism set.
- August 30, 2005 : As of P77, the FORS2 Echelle is decommissioned and replaced by the new and more efficient 1200B grism on FORS1.
- February 25, 2005 : These new FORS webpages are released
- December 13, 2004 : New Rapid Response Mode (RRM) running for both FORS1+2
- June 15, 2004 : New holographic grism GRIS_1200g installed on FORS1
- June 5, 2004 : FORS1 moved to Kueyen (UT2) and FORS2 to Antu (UT1)
- February 27, 2004: Important update on the FORS1 instrumental polarization