Mees Bimonthly Technical Task List

Tasks/Person(s) responsible

FIRST PRIORITY - IMMEDIATE IMPACT ON OPERATIONS

• 1) IVM fast guider: MFW, LH, DLM
• a) Finish redesign and rebuild IVM internal guider connections

• 2) Install new cabling for 10" occulter: LH
• a) Install cable.

• 3) IVM prefilter: MFW, DLM, BJL, GN
• a) Complete purchase of tunable prefilter
• b) Understand control circuit design and component locations

• 4) IVM datasystem upgrades: DLM, BJL, EKO, MFW
• a) Finish debugging new CCD camera software
• b) Test optics for ghost removal, image quality
• c) Filter and shield the DC/DC power supplies to cut out noise

• 5) MCCD: GN, EKO, BJL
• a) Fix fast guider failure

• 6) POI: GN, BJL
• a) Modify mount for old 11cm K-Line lens, install, rearrange optics.
• b) Modify observing code for time series.

SECOND PRIORITY - LONG-RANGE IMPACT ON OPERATIONS

• 1) Reaction mass stabilizer: BJL, MFW
• a) Further discussion with vendors

• 2) Dome seeing improvement: DLM, BJL, GN, MFW, LH
• a) Design, build, install spar front heatshield.
• b) Design and cost dome exhaust fans.
• c) Design and cost dome interior insulation.
• d) Identify better material for windscreens.

• 3) Mees video organization: BJL, GN, TD
• a) Connect coronagraph through distrib. amp.

• 4) Dust control in Coude room: GN
• a) Clean existing foam filter
• b) Define filter downstrean of squirrel cage.

• 5) Improve observatory operation documentation: BJL, DLM, GN, EKO
• a) Document SPAM design and operation
• b) Evaluate Web Browser front end for SPAM
• c) Unify and document realtime data and log pipelines
• d) Develop tracking system for maintenance, repairs, critical procurements

• 6) New spar guider: BJL, DLM, EKO, LH, MFW
• a) Review existing electronics schematics to determine if limb signal can be extracted in a useful place
• b) Look at signals with scope to make sure their characteristics are understood.
• c) Locate solar cells for alternative secondary detector, investigate design issues.
• d) Analyze digitizer location (in spar vs in PC) impact on design & performance.
• e) Rough out software design for guider system.
• f) Resurrect PC host platform (components, OS)
• g) Define cabling to interface drive amps to motors.

• 7) Field lens repolishing: DLM

• 8) MCCD upgrade: DLM, MFW, BJL
• a) Identify camera and computer system options
• b) Inventory all existing and desired control systems
• c) Discuss concept for user interface
A
• d) Inventory upgrade options beyond basic camera/computer change
• e) Set up Hypermail archive for discussion

• 9) New coronagraph: All

• 10) Mees building maintenance: GN, MM, BJL
• a) Test paints for exterior to minimize heating.
• b) Survey dome and building interior for repair/painting/maintenance.
• c) Schedule a work week and tasks.

• 11) Electric power quality:LH
• a) Measure load from each instrument/rack/unit
• b) Rebalance across power phases
• c) Get correct sized UPS as needed

Progress to date

First Priority Task #1

IVM fast guider

First Priority Task #2

Install new cabling for 10" occulter

First Priority Task #3

IVM prefilter

First Priority Task #4

IVM datasystem upgrades

First Priority Task #5

MCCD

a) Fast guider failure was caused by a bad power supply. Les fixed it by tapping power from another supply.

First Priority Task #7

POI

Second Priority Task #1

Reaction mass stabilizer

Second Priority Task #2

Dome seeing improvement

Second Priority Task #3

Mees video organization

Second Priority Task #4

Dust control in Coude room

Second Priority Task #5

Improve observatory operation documentation

b) Don went to an Oracle demonstration of database tools. We learned that the HESSI database will use the IDL Database tools.

c) A Hypermail archive has been setup to access the Mees Observing logs.

Second Priority Task #6

New spar guider

Second Priority Task #7

Field lens repolishing

Second Priority Task #8

MCCD upgrades

a) A survey of CCD camera vendors has been done and talks with Photometrics are progressing.

Second Priority Task #9

New coronagraph site planning

Second Priority Task #10

Mees building maintenance

Second Priority Task #11

Electric power quality

Last modified: Thu Jun 10 23:50:09 HST 1999