EFOSC News Updates
On this page, we list the main changes that affected the instrument and this web site.
- An updated version of the manual with information on EFOSC2 at the NTT is ready for P82 (and the remainder of P81), following the successful recommissioning of the instrument at the NTT Nasmyth B focus. (21/06/2008)
- A new polarization unit will be offered in P79; it will allow to measure circular polarimetry, thanks to a quarter-lambda retarder plate (14/08/2006)
- EFOSC2 calibration plan now on-line (10/05/2006)
- A short manual of the quick-look tool for long-slit spectroscopy is now available (27/04/2006)
- Polarisation: Preliminary analysis of instrument polarization shows < 0.1% at field center, and ca. 0.4% at the edge. (07/07/2005)
- New Webpage: A new webpage has been created to give a short overview on the instrument: Instrument Overview.
- New Grisms: All broken grisms have been either repaired or replaced, the last being grism #15 replaced by #17. The new efficiencies and further info can be found at the EFOSC grisms page. (19/11/2004)
- Fringing pattern determined: The fringing patterns for the filter i#705 has been determined and put on this page. (17/11/2004)
- Zero-Point monitoring page updated: The zero-points are measured in each photometric night when EFOSC is mounted. The results are stored in the EFOSC ZP-page. (13/11/2004)
- New Grism Efficiencies: System efficiencies have been measured for all available grisms. For details, see EFOSC grims page. (31/08/2004)
- Pattern in Bias Frames: A pattern of probable electronic nature is sporadically observed in Bias frames taken with binning 2x2. For details, see Pattern in Bias 2x2. (22/02/2007)
- Grism #10 decommissioned: Grism #10 (6280-8200 Å) suffered a major damage and is no longer offered. (14/06/2007)
Please mail to ls-efosc for comments, suggestions and to report errors and inaccurate statements in the web pages and manuals.