COS ISRs

ISR 2010_11: COS FUV Detector Dark Rates During SMOV and Cycle 17
This ISR describes the behavior and characteristics of the COS FUV detector dark rate during SMOV and Cycle 17.
D. Sahnow 07 Oct 2011 (pdf)

ISR 2011-05: Gain sag in the FUV detector of the Cosmic Origins Spectrograph
SPIE paper describing the characteristics and mitigation strategies of gain sag in the FUV detector.

David J. Sahnow, Cristina Oliveira, Alessandra Aloisi, Philip E. 
Hodge, Derck Massa, Rachel Osten, Charles Proffitt, Azalee 
Bostroem, Jason B. McPhate, Stéphane Béland, Steven N. Osterman 
and Steven V. Penton, "Gain sag in the FUV detector of the Cosmic 
Origins Spectrograph", Proc. SPIE 8145, 81450Q (2011); 
http://dx.doi.org/10.1117/12.893989

Copyright 2011 Society of Photo-Optical Instrumentation Engineers. 
One print or electronic copy may be made for personal use only. 
Systematic reproduction and distribution, duplication of any 
material in this paper for a fee or for commercial purposes, or 
modification of the content of the paper are prohibited.

D. Sahnow 26 Sep 2011 (pdf)

ISR 2011-04: Details of COS TAGFLASH Execution
Describes the characteristics of COS TAGFLASH exposures.
T. Keyes 07 Sep 2011 (pdf)

ISR 2011-03: COS FUV Gridwire Flat Field Template
Results of the FUV Gridwire Flat Field Development and Testing.
J. Ely 05 Aug 2011 (pdf)

ISR 2011-02: Updated Results from the COS Spectroscopic Sensitivity Monitoring Program
Updated Results from the COS Spectroscopic Sensitivity Monitoring Program.
R. Osten 28 Jun 2011 (pdf)

ISR 2010_13: SMOV: COS FUV and NUV On-Orbit Structural and Thermal Stability
This ISR provides a description and analysis of the structural and thermal stability of the COS instrument.
T. Ed Smith 12 Jul 2011 (pdf)

ISR 2010_12: COS NUV Detector Dark Rates During SMOV and Cycle 17
This ISR describes the behavior and characteristics of the COS NUV detector dark rate during SMOV and Cycle 17.
D. Sahnow 12 Jul 2011 (pdf)

ISR 2011-01: Improved Medium Resolution Line Spread Function for the COS FUV Spectrum
We have developed an improved line spread function (LSF) for the medium resolution far- ultraviolet gratings (G130M and G160M) of the Cosmic Origins Spectrograph (COS) by taking into account scattering in the far wings due to microroughness on the HST primary mirror.
G. Kriss 18 Mar 2011 (pdf)

ISR 2010-10: SMOV: COS NUV Imaging Performance
Presenting data analysis to describe NUV Imaging Performance for COS after SM4. Revised 10/6/2010
P. Goudfrooij 11 Mar 2010 (pdf)

ISR 2010-08: SMOV: COS NUV External Spectroscopic Performance
Describes the external spectroscopic performance of the COS NUV detector
S. Béland 30 Sep 2010 (pdf)

ISR 2010-09: COS FUV External Spectroscopic Performance
A description of the External Spectroscopic Performance of the FUV Channel on COS
P. Ghavamian 30 Sep 2010 (pdf)

ISR 2010-15: Early Results from the COS Spectroscopic Sensitivity Monitoring Programs
We report initial results from the Cosmic Origins Spectrograph spectroscopic sensitivity monitoring calibration programs.
R. Osten 02 Aug 2010 (pdf)

ISR 2010-14: COS Target Acquisition Guidelines, Recommendations, and Interpretation
This ISR provides an overview of COS TA and updates, expands, and supersedes information in the COS IHB(v2)
T. Keyes 15 Jun 2010 (pdf)

ISR 2010-07: SMOV: COS FUV Focus Determination
The procedures for determining the COS FUV fine-focus are described
D. Lennon 04 Mar 2010 (pdf)

ISR 2010-05: SMOV: COS NUV Wavelength Calibration
Update to the NUV wavelength calibration from SMOV
C. Oliveira 19 Feb 2010 (pdf)

ISR 2010-06: SMOV: COS FUV Wavelength Calibration
Update to the FUV wavelength calibration from SMOV data
C. Oliveira 19 Feb 2010 (pdf)

ISR 2010-04: SMOV: COS NUV On-orbit Optical Alignment
SMOV NUV optical alignment process description
G. Hartig 12 Feb 2010 (pdf)

ISR 2010-02: SMOV Absolute Flux Calibration of the COS FUV Modes
Describes the processes used to determine the absolute flux calibration of COS FUV point source spectra
D. Massa 28 Jan 2010 (pdf)

ISR 2010-03: COS Near-UV Flat Fields and High S/N Determination from SMOV Data
Describes the process of determining and results of the COS NUV high S/N flat field reference files from data taken during SMOV4
T. Ake 04 Feb 2010 (pdf)

ISR 2010-01: SMOV Absolute Flux Calibration of the COS NUV Modes
Describes the processes used to determine the absolute flux calibration of COS NUV point source spectra
D. Massa 28 Jan 2010 (pdf)

ISR 2009-01(v1): Preliminary Characterization of the Post-Launch Line Spread Function of COS
Description of the COS Line Spread Function (LSF) as determined by post-launch testing.
P. Ghavamian 01 Oct 2009 (pdf)

COS ISR 08-01: Phase II Update and Guidelines for Cycle 17 Users of COS
Summary of recommended practice and suggestions for observers preparing their Phase II COS program submissions for Cycle 17.
D. Soderblom 06 Jun 2008 (pdf)

COS ISR 02-01: COS Bright Object Protection
COS Bright Object Protection
C. Leitherer 07 Mar 2006 (pdf)

COS ISR 99-01: COS Design Reference Mission and Ground System Volume Requirements
COS Design Reference Mission and Ground System Volume Requirements
Charles (Tony) Keyes 07 Mar 2006 (pdf)

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