FOS Instrument Science Report # 112 "FOS Dead Diode Reference Files: A Quick Reference Guide to the Appropriate File for a Particular Date and Instrumental Configuration" by Cynthia J. Taylor Abstract excerpted from the report: Complete tabulations of recommended Dead Diode reference files (.r4h, .r4d) for each specified USEAFTER date are presented in a convienent matrix format AS OF 6 AUGUST 1994. List of all Dead Diode reference files delivered to Calibration Data Base System (CDBS) will be in CAL/FOS 113. ASCII text and Postscript versions of the tables and explanatory test in this report will be maintained on STEIS and will be available for anonymous ftp from stsci.edu. Both the STEIS tables and explanatory text will be updated periodically. For more information, please contact the above authors.