Email: joel (at) aloha.net
WWW: HTTP://www.aloha.net/~joel
Born 30 June 1950
Single, good health
US citizen
Graduate Record Exam scores (10/71)
verbal 720
quantitative 750
The Keck is an alt-az mounted telescope. It has segmented thin primary mirror design, with active computer control of all segments to maintain primary figure and phasing. F/15, F/25 and F/40 (chopping) secondaries utilize cass, forward cass, yoke (bent cass), and Nasmyth foci (with tertiary). Cassegrain and forward cass instruments are mounted in rotators. Auto-guiding supports sky-angle, elevation(vertical)-angle, sky-rotation, and color dispersion-compensation guiding modes.
Instrumentation systems include hi- and lo-resolution visible spectrometers with imaging and multi-slit capability, near-infrared camera, and far-infrared imaging spectrometer.
Computer systems include Sun/SunOS/Solaris, VAX/VMS, IBM/PC/Windows, and VME/VxWorks
Work in close cooperation with visiting astronomers, staff scientists, engineers, and support personnel
Bring all systems, including telescope, dome, instruments, and computers, to operational status for observing
Operate the telescope, dome, rotators, chopper, secondary, guiders, primary mirror support system, and computers as required for efficient astronomical observation
Carry out routine and special engineering observations as required to maintain high performance of optical systems
Perform secondary collimation and primary mirror stack configuration as required for optimum telescope and instrument performance
Set up, configure, and carry out astronomical observations, using facility instruments, in conjunction with the Keck service observing program
Monitor weather and environment for conditions that might compromise observations or endanger equipment or personnel
Maintain instruments: LN2/LHe transfers, performance checks, trouble-shooting and fault recovery as required
Perform on-site trouble-shooting of software and hardware systems as required (mechanical, optical, electronic, computer, and cryogenic)
Maintain nightly engineering and observation logs
Create trouble/fault reports and liaison with sea-level support personnel as necessary
Participate in daytime operations support including staff meetings, instrument support, data reduction, log and report updates, and documentation
Complete periodic training and certification in first aid and CPR for medical emergencies at the summit
Programming of operations and support software in Fortran, C, DCL, and Cshell
Ongoing developement of WWW documentation (HTML, Java)
Instruments included near- and far-infrared cameras, polarimeters, coronagraph, and spectrometers
Support computer systems primarily VAX/VMS
Maintain instruments: Ln2/He transfers, check/change batteries, check beam profiles and image quality, tip-up tilt flanges or collimating mirrors as necessary, monitor dark currents and adjust gate voltage, update instrumental zero points, setup and align Fabry-Perots
Telescope/secondary collimation as necessary, monitor and adjust chopper wave form, frequency, and throw to suit current observing program
Train and advise visiting astronomers for optimal utilization of the telescope and instrumentation
Monitor instrument performance and sky quality, modify observing procedure as required
Maintain operations and instrument logs
Perform on-site troubleshooting of software and hardware systems (mechanical, optical, and electronic)
Create trouble/fault reports and liaison with sea-level support personnel
Periodic training and certification in first aid and CPR for medical emergencies at the summit
Perform independent service observations and data reduction
Work in close cooperation with visiting astronomers, staff scientists, engineers, and support personnel
Promoted to Crew Chief 1979
Computer programming of operational and control/logging systems in FORTRAN (DG Nova, DEC PDP-11 and LSI-11 computers) and assembler (Z-80 microprocessors)
Maintenance and operation of the Mees Observatory machine shop, including lathe, mill, band saw, and drill press
Design and machining of one-off optical and mechanical assemblies
Design and construction of photomultiplier receive package for LURESCOPE; test and modify aperture stops and beam directors
Design and construction of optical beam director-decollimator for LUNASTAT LASER satellite transmit/receive package
Construction of photomultiplier tube housings for LUNASTAT and LURESCOPE
Develop interactive dome control program in Z80 assembly language.