1. 990901EIS_RR_Tech.1 Overview and Status of EIS Technical Program Dr. Clarence M. Korendyke EIS US Project Scientist Naval Research Laboratory 202-767-3144 e-mail: koren@cyclops.nrl.navy.mil

2. 990901EIS_RR_Tech.2 Physical Block Diagram

3. 990901EIS_RR_Tech.3 Electrical Block Diagram

4. 990901EIS_RR_Tech.4 Program Responsibilities

5. 990901EIS_RR_Tech.5 EIS Scientific Characteristics

6. 990901EIS_RR_Tech.6 General Status Completing the EIS Conceptual Design Identified Critical Interface and Technical Issues Within the Experiment Have Pursued Specific Cost and Technical Issues Within the US Components Development Program, Optics, Filters, Actuators, etc. Have Completed the Conceptual Design and Prepared for Expected Phase B Breadboard Development Have Significantly Iterated and Optimized the Overall EIS Design Have Calculated Exposure Times for Numerous Configurations Have Modeled Precision of Doppler and Turbulent Velocity Measurements

7. 990901EIS_RR_Tech.7 Optical Subsystem Status Design Principles and Trade-Offs Well Understood (>10 Designs Studied) Present Design Satisfies Science Objectives While Minimizing Risk and Cost Mirror and Grating Specifications Have Been Sent to Vendors for Comment First Cut Sensitivity Analysis Has Been Conducted Filter Specifications Are Being Iterated

8. 990901EIS_RR_Tech.8 NRL Mechanism (MIR, SLA, GRA) Status Conceptual Design Has Been Completed Conceptual Design Satisfies Requirements Actuator Specifications Have Been Drafted and Iterated With the Vendor Location, Fit, and Mounting Point Issues Have Been Resolved Draft Electrical Interface Document Has Been Written