Subject: Re: IOC actions/dependencies mtg From: John Stansberry Date: Wed, 21 May 2003 13:59:35 -0700 To: John Stansberry CC: "Dean C. Hines" , Myra Blaylock , Chad Engelbracht , Doug Kelly , Almudena Alonso-Herrero , Karl Gordon , James Muzerolle , George Rieke , Bill Latter This morning's meeting was pretty productive (for a meeting). The primary focus was on the task dependencies question. Results were: Definition of task dependencies: Dependencies will be used primarily to facilitate replan activities during IOC. Iff a task failure would force another task to be rescheduled or redone, then the first task should be listed as a dependency for the second task. SThere should be only a couple of dependencies for any given task. They should not include certain "critical tasks" on which almost all other tasks depend (see below). Critical Tasks: Critical tasks are those which would, on failure, have such far-reaching impacts that they needn't be specifically cited as dependencies for other tasks. The ones we identified fall into 4 categories: Hardware Anomaly mips-10, 15, 900, 990 basic CE and mips aliveness, functionality mips-115, 247, 248 stim operability, brightness noise-related tasks: mips-15 csmm jitter, 160eng. px. noise, 70 bad readout ramps mips-910, 950 24um readnoise mips-125 24um data ramps mips-950 70um ramps (camp. F), 160um ramps (camp. G) mips-911, 912 Ge readnoise, dark current mips-92 CE temperature monitoring Telesope Cooling Anomaly MIPS-C thermal balance basic check on observatory thermal balance mips-950 thermal background levels check mips-10 mips/CE termperatures Pointing Anomaly IRAC 1st lights early sign if frame tables are OK in general mips-100, 322, 324 1st light - is pointing even close to correct? Commanding Anomaly This is a big area, and very hard to track with 'dependencies'. Early tests should give us confidence that uploads are accurate and getting to the S/C in one piece, and that downlinks are getting processed accurately and completely. One specific dependency ID'd: mips-100 is CSMM motion sense/scale correct? Next Steps: Get principals to update their dependencies in light of the information above Send Request - May 27 JS Reply Due - June 3 principals Revise SV campaign contents and ordering Due date - June 3 JS, DK Alter IOC DB to track dependencies and 1-line describing dependency, and insert updated dependencies from principals. Alter cookbooks to insert dependencies from DB rather than being static text. Due date - June 10 JS Final IOC Review ~ July 1 -- John Stansberry MIPS Debris-Disk and Solar System Lead Steward Observatory (520) 626 - 6658 ph. 621 - 9555 fax University of Arizona (520) 548 - 6434 cell 933 N Cherry Ave mailto:stansber@as.arizona.edu Tucson AZ 85721 http://rincon.as.arizona.edu/~stansber -------------------------------------------------------------