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Hubble Space Telescope
November 2016 STAN

| STScI Analysis Newsletter (STAN) 
| Cosmic Origins Spectrograph (COS)
| November 2016

In this newsletter we announce the release of an updated 
COS/FUV DISPTAB for data observed at Lifetime Position 2:



Updated COS/FUV Wavelength Dispersion Solution Reference
File for LP2 (DISPTAB) Released
A new COS FUV wavelength dispersion solution reference file (DISPTAB) for Lifetime Position 2 (LP2), 0bn1606sl_disp.fits, has been delivered for use in the COS calibration pipeline. This file includes updated dispersion coefficients (zero points and slopes) for data taken at LP2 (i.e. between 23 July, 2012 and 09 Feb, 2015) with the standard cenwaves of G130M and G160M settings (i.e. G130M/1055/1096/1222 not updated), and leads to overall uncertainties in the wavelength calibration of +/- 3 pix (1 sigma). Users interested in an improved wavelength calibration for G130M and G160M data obtained at LP2 are encouraged to retrieve their data from the HST archive. +----------------------------------------------------------+ | Need help? +----------------------------------------------------------+ | To subscribe or unsubscribe to the STAN, send a message | to with a blank subject line and | the following in the body: [un]subscribe cos_news | or subscribe/unsubscribe here. +----------------------------------------------------------+ | The Space Telescope Science Institute is operated by the | Association of Universities for Research in Astronomy, | Inc., under NASA contract NAS5-26555. +----------------------------------------------------------+