EVLA Basic Operations Jim Ulvestad

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Presentation transcript:

EVLA Basic Operations Jim Ulvestad Operations Concept Staffing and Cost Plans

EVLA Operations Concept Enhanced data delivery and science support desired for all astronomers, but depends on available funding See following Chandler talk on Array Science Center Day-to-day infrastructure maintenance relatively unchanged Robust maintenance of aging infrastructure (buildings, antennas, railroad) is required Economies of scale by sharing personnel with VLBA and possibly with ALMA Detailed staffing requirements in EVLA/VLBA Ops Plan, Version 5 Compared to 2000, staffing shifts from maintenance to science support SAGE meeting, May 22-23, 2007

Routine Operations Requirements Operate both EVLA and VLBA, with associated gains in cost efficiency Maintain EVLA capability until 2030 Retain all 7 configurations (A,B,C,D + hybrids) 95% reliability in scheduled antenna-hours 70% of hours in year for peer-reviewed science 1-50 GHz and 327 MHz bands available year-round Primary dynamic scheduling, with fixed observations also possible Array Science Center requirements/drivers in Chandler talk SAGE meeting, May 22-23, 2007

Annual Ops/Infrastructure Costs Function Cost (2005) Cost (2012) M&S, Facilities, Travel $3.2M $3.9M EVLA Power $0.6M $1.6M AOC Power $0.3M $0.5M VLBA Power $0.4M $0.7M Added VLA-AOC Bandwidth $0.0M $0.1M TOTAL $4.5M $6.8M All costs in dollars of year (FY05$ for 2005, FY12$ for 2012 costs) Assumes 3.5% inflation per year Additional power requirements of EVLA (WIDAR, cryogenics) 7% annual cost increase per kilowatt-hr FY05 cost included pro-rated share of long-term infrastructure augmentations SAGE meeting, May 22-23, 2007

Operations Personnel Requirements--FTEs Division 2000 2007 2008 2009 2010 2011 2012 Assistant Director’s Office 5 3 4 Business Services 9.5 10 Array Operations 26 22 21 20 19 Electronics 73 64 66 68 69 Engineering Services 52 42 43 44 Computing Infrastructure Ops S/W (EVLA Comp) 9 11 15 16 18 ASC (core/full) 29 27+1 31/33 33/35 35/44 39/62 TOTAL (core/full ASC) 213 188.5 195/ 197 201/ 203 207/ 216 212/ 235 213/ 236 2012 needs, including Core ASC, equal to 2000 Personnel shift from maintenance to science support No guarantee of funding to support this plan SAGE meeting, May 22-23, 2007