1. PI: Jim Lyke, co-I: Al Honey
2. problem troubleshooting (NIRSPEC rotator software testing and improvement)
3. Remedy test #:No test number
4. Time request: 0.5 night
5. Description: Past experience shows that NIRSPEC will develop some problem that requires on-sky testing. Although we have had luck in software testing during the day, we often need a moving telescope and real DCS (often a daytime schedule conflict). The current problem we face is an inability to move the rotator in stationary mode at startup. We think this problem can be solved by changing the way DCS reports demanded rotator positions to NIRSPEC, but there is concern that any DCS change will have adverse and unintended consequences, such as incorrect rotator information from DCS.
6. Tel/Inst config: K II + NIRSPEC on RNAS
7. Data reduction/reporting: virtually no data reduction is needed. Any solutions will be posted on the NIRSPEC webpage and communicated to observers.
8. Preferred Dates: No preference
9. The past year of NIRSPEC software improvements have resulted in time savings of ~3.5 nights based on quicker crash recovery. We have been running our new server code with much fewer crashes for 2.5 months. We are now finding smaller and smaller problems to correct.