| Priority | Item | Tel | Class | Who | Notes |
| A | M1 coolant mixing valves | Both | HW | SBS Mech Eng, Mech tech, Tel Eng | work in progress (6/30/04); Charlie wants pressure measurements before and after the valve (11/03/04); No way to get pressures; Deadline is Mar 2005 (11/10/04); mixing valve carried by Charlie and installed in Feb, still noisy, FP will call CH; Performance good (flow is higher), still noisy, Charlie will order another for other telelescope and Frank will tune all (8/10/05); Still in progress (4/20/06); Installed on both telescopes, needs final balancing by Frank (4/12/07) |
| A | Lightning protection on serial lines | Both | HW/SW | Elec tech | Added 4/7/05; Test parts ordered for one complete circuit (8/10/05); Good success on telescope controls, work progressing (4/20/06)New links installed testing high speed lines for TCS-Main drive, vane end systems. New fibers added from Equip rm to compressor bld. (10/12/06); Installation in telescope areas occuring this month and next (4/12/07) |
| A | M2 M3 Baffles (MagIC) | Clay | HW | SBS Mech Eng, Tel Eng, Mag Mgr | Promoted 1/21/04; Charlie supplied sizes to AU; AU will review and send dimensions for M3 fitting August 2004; M3 baffle will be installed in Nov 2004, with D. Osip taking flats before and after installation (11/10/04); M3 baffle installed, Charlie will examine mounting solutions for M2 in Aug 05 (8/10/05); Rotator baffle rings will be installed on MagIC port by Frank and Charlie (4/12/07) |
| A | M3 turret geometry & telescope collimation | Both | SW | Charlie Hull, Jose Soto | Algorithm for driving mirror to a particular position given the motor and sensor positions; LVDTs are noisy and also not in-line with actuators so the geometry is tricky (4/7/05); Charlie will work on this in August 05 (8/10/05); Geometry report re-sent (4/13/07) |
| A | Rotator guiding | Both | HW/SW | Tel Eng, LCO Mgr, Comp | Will do as engineering time becomes available; Jose needs to tune rotator motors (4/7/05); Still working on it (8/10/05)Testing shows rotator guiding does not work at rates above 0.02"/sec further tests req'd. (10/10/06) |
| A | New guider cameras and spares | Both | HW | SBS Tech | Ian will write proposal for new cameras and spares, reviewed by Ops Comm, then handoff to Mark (5/9/07) |
| A | Connect shop air to instruments | Both | HW | Mech Tech & Tel Eng | In progress (6/30/04); dryer installed on compressor but more tests needed to check on humidity and ice problems (8/11/04); on hold while compressor problems being researched (4/7/05); The need for this is reduced with mirror actuator repairs, but we will implement it after some final work is done (8/10/05); AU will get requirements and failure history from IMACS team; Frank will ask Instrument Specialists about air-related IMACS problems (5/9/07) |
| A | Mirror actuator air leaks | Both | HW | Mech Tech & Tel Eng | Work starting this week (6/20/04); a continuing long-term project; more new seals ordered (special, 4/20/06)Progress in repairing cylinders with high leak rates, no failures during cold weather (10/12/06) |
| A | Hardpoint friction and seal repair | Clay | HW | Perez | Test stand in construction, freeze test in progress (Teflon bearing friction), installed hardpoint exam planned in August (8/10/05)Hard point test stand waiting on test electronics (10/12/06) |
| A | Cover green light on rotator tape encoder head, IMACS port | Baade | HW | Perez | Charlie reports seeing a green glow the last time he looked in the port (au:10/11/06) |
| A | Auto-Nag observer reminder program | Both | Software | Uomoto | Requirements reviewed (5/06) |
| A | New rotator bearing at IMACS port | Baade | HW | Uomoto, Perez | Ship date from Rotek is now Jan 26, 2007, Castrol-Braycote 803EP scheduled (au:10/17/06); Bearing complete, not assembled, expect to ship by ocean out of LA in May 2007 (4/12/07); Bearing at LCO, scheduled for early July installation after friction review by Ops Comm (5/9/07) |
| A | Louver safety screens | Both | HW | Perez | Seven of 16 built, perhaps six more weeks to finish (10/17/06) |
| A | Guider mechanicals | Both | HW | Mag Mgr, SBS Mech Eng | AU will initiate guider requirements discussions; FourStar will want a new guider (8/11/04); demoted from A (11/10/04); Work in progress (10/10/06); promoted to A and ready for testing (5/9/07) |
| A | Video switch control | Baade | SW | - | Done on Clay (5/9/07) |
| Priority | Item | Tel | Class | Who | Notes |
| B | Findspot fails to find spot pattern at S-H startups | Both | SW | Glenn? Paul? | added 10/11/06 |
| B | FP2 | Both | HW | Perez | Promoted to B from C after Sep 06 SAC meeting. Incoming instruments will want FP2 (10/18/06) |
| B | Small ADC Mike | Clay | HW | - | Waiting build in Pasadena (10/18/06); AU will ask Charlie to work on this in the background (5/9/07) |
| B | Replace lift access doors | Both | HW | - | Promoted to B from C, doors soon to be ordered (5/9/07) |
| B | Louver seals | Both | HW | - | In progress, promoted to B from C (5/9/07) |
| B | Cass rotator clamps don't work at off-zenith positions | Clay | HW | Charlie Hull | Charlie has analyzed |
| B | Remote quartz halogen lamps | Both | HW | - | - |
| B | EDS improvements | Both | SW | LCO programmer | Goals include automated nightly report (5/9/07) |
| B | Baffling for IMACS imaging | Baade | HW | Hull | Nasmyth port baffles built, need plating. Secondary baffle waiting for pinhole images (or can we do this with Zemax?) (10/10/06) |
| B | #8 dome truck | Baade | HW | Perez | Demoted 1/21/04 |
| B | Lift automated controls | Both | HW | - | - |
| B | Solve rotator handshaking problems | Both | HW/SW | Elec tech, LCO programmer | AU will find Adam module replacement (handshaking problem); Expect serial to fiber lightning fix to solve this (8/10/05); Demoted to C as fiber fix is in progress (10/10/06); Fiber won't solve the problem, promoted to B from C (5/9/07) |
| B | Fire suppression on lift hydraulics | Both | HW | - | - |
| B | ESTOP display panel | Both | HW/SW | - | - |
| B | Alarm for mirror support failures | Both | SW | - | Instrument specialists request an audible alarm on mirror support failures (10/18/06) |
| B | Lockpin interlocks everywhere | Both | SW | - | For safety lockouts. Need a punchlist of locations to be done (10/18/06) |
| B | LDSS slitmask submission software | Clay | SW | - | added 5/9/07 |
| B | Non-sidereal & MIRAC tracking | Both | SW | - | Moving object and fixed pupil guiding is requested; this is a successor to the guider upgrades now in progress (10/18/06) |
| B | Tie down video monitors in control room | Both | HW | - | These might tip off in an earthquake (10/18/06) |
| C | Reliable port swaps with Cass rotator (10-minute swaps) | Clay | HW | - | MagIC upgrades last month allows continuation of this work (10/18/06); Demoted to C from B (5/9/07) |
| C | AZ oil system covers | Both | HW | - | - |
| C | Dome aluminum tape | Both | HW | - | - |
| C | Fixed floor rotating seal | Both | HW | - | - |
| C | Rotating dome seal | Both | HW | - | - |
| C | Windscreen | Baade | HW | - | - |
| C | TCS signal for big compressors status | Both | HW/SW | - | - |
| D | ADC control | Baade | HW | SBS Mech Eng, Tel Eng, Comp, Mech Tech | Promoted 3/2/04; Installed and first tested 5/9/04; Lab tests on motor torque in progress (Leroy 6/30/04); on hold for IMACS; demoted to B (4/7/05); Promoted to A, Frank will talk to Jose to determine which subsystem gets high level control (8/10/05); Controls have been working but needs testing (4/20/06); Operational testing to be done in 5/07 (4/12/07); A-task done (5/9/07) |
| D | ADC dispersion test plan | Baade | OBS | Shectman | Work to start in May 2007 (4/12/07); A-task done (5/9/07) |
| D | Guider cameras; need spares on-site | Both | HW | SBS tech | In progress; HW shipped to OCIW for work by Estrada (6/04); Jorge is working on boards sent back from LCO; AU will check status (8/10/05); Jorge sent circuit boards back to the observatory but retained two CCD heads and enclosures for testing in Pasadena (8/12/05); A-task done (5/9/07) |
| D | removal of storage and offices in Aux bld. | Both | HW | Perez | Storage relocated to Bodega, offices removed reorganization in progress (10/12/06); A-task done (5/9/07) |
| D | IMACS rotator motor burnout | Baade | HW | Charlie Hull, IMACS team | Motor changeout or rotator system redesign (added 8/10/05)Problem traced to IMACS balance, roller friction and bearing friction, bearing lubricated, PWM amp added, testing under way (10/12/06); No further problems & new bearing delivered to LCO. B-task done (5/9/07) |
| D | EDS tools | Both | SW | Mag Mgr | AU has started work on this (6/30/04); Skip wrote a presentation interface; Done (5/9/07) |
| D | IMACS slitmask .nc file errors | Baade | SW | - | B-task done (5/9/07) |
| D | Upgrade TCS computers | Both | HW | - | C-task done (5/9/07) |
| D | LDSSThermal | Clay | HW | - | C-task done (a while back) (5/9/07) |
| D | Data PC rack & connections, equip room | Both | HW | Leroy | Proposal from Marc in July 12, 2005 to clean things up, what's needed to execute? (8/10/05)Racks added, PC's installed, Linux operating systems installed, instrument control software installed, waiting on testing (10/12/06); B-task done (5/9/07) |
| D | M2 tip-tilt | Both | SW | - | Piezo tip-tilt controls. Installed on Clay. I think this is now installed on both telescopes (?) (au:10/18/06); Installed on both telescopes but seem not effective, decided it's done for now, B-task done (5/9/07) |
| D | M2 tip-tilt | Baade | HW | SBS | C-task done on both telescopes (5/9/07) |
| D | Error logging & tracking | Both | SW | - | JIRA has been implemented by Marc Leroy and has been working for a year, B-task done (5/9/07) |
| D | Cryotiger recharge kit: make it work | Both | HW | - | New kit has been delivered to LCO; old one in storage at SBS (10/18/06); C-task done (5/9/07) |
| D | M3 turrent on Clay | Clay | HW/SW | SBS Mech Eng, Tel Eng, Mech Tech, Elec Tech, Comp | New detent procedure with Galil amps to be tried this week (6/30/04); working but not fully testing (8/11/04); Detents will be tested in Nov 2004 engineering time but these are considered done (11/10/04); Detent problem to be fixed by Charlie (4/7/05); demoted to B (4/7/05); Charlie will investigate in August 05 (8/10/05); B-task done (5/9/07) |
| D | Mirror support PC boards (new SOML) | Both | HW | SBS Elec Eng, Tel Eng, Mech Tech | Promoted 1/21/04; SOML busy with LBT; not critical; Bagish will work on this (8/11/04); Prototype boards ready for fab (11/6/04); Prototypes OK w/some mods, 35 new boards in fab, we will populate all as dual-actuators (8/10/05); 35 version 3 boards in fab (4/20/06); Expect 20 to ship on October 19, 2006 (10/10/06); All version 3 boards at Magellan, most are installed and being tracked (4/12/07) |
| D | Alignment of telescope optics at IMACS port | Baade | HW | Perez, Osip, Shectman, Schechter, Eychaner | Closed 4/12/07 |
| D | Replace Glentek amps on rotators | Both | HW/SW | Mech Tech, Elec Tech, Tel Eng | Promoted 3/2/04; AU will find Adam module replacement for handshaking problem; 6/30/04; IMACS will get next setup (8/11/04); Worst problems solved, get final parts list and build the lot (11/10/04); On hold pending examination of IMACS location motor problem (8/10/05); Moved from B to D (Done, 9/06) |
| D | IMACS commissioning | Baade | HW | Dressler et al., Inst Sci, Tel Op, Tel Eng | Jan & Feb 2005 scheduled for commissioning; Zemax modeling needed (4/7/05); Dave Osip has been gathering wide field imaging data (8/10/05); IMACS recommended at last SAC meeting (4/20/06), Done September 2006 |
| D | FP3 | Baade | HW | - | Demoted to D from C after Sep 06 SAC meeting (FP2 is preferred; 10/18/06) |
| D | Clay bearing deflection (measure Baade) | Clay | HW | - | 12/16/2003 |
| D | E-stop interlock IMACS rotation | Baade | HW | - | 12/16/2003 |
| D | Fix/upgrade mirror covers | Both | HW | - | 12/16/2003 |
| D | HVAC controls | Both | HW | - | 12/16/2003 |
| D | TCS upgrades for interlocks | Both | HW | - | 12/26/2003 |
| D | Rotators | Both | HW | - | 01/13/2004 |
| D | Safety walk-through | Both | HW/SW | - | 12/16/2003 |
| D | TCS upgrades for interlocks | Both | SW | - | - |
| D | Elevation drive bearing inspection and repair | Clay | HW | Tel Eng, Mech Tech | Recent AZ drive failure prompts inspection and re-greasing. This will be done during the Nov 2004 engineering time; Done |
| D | Design new mirror actuator card | Both | HW | Alan Bagish | Done |
| D | Iodine cell actuator | Clay | HW/SW | Mech Tech, Tel Eng, Inst Sci | IMS modules out for repair; air-shipped October 2004; installation during Nov 2004 engineering time; Demoted to B (4/7/05); Done (8/10/05) |
| D | Flat field screens | Clay | HW | - | For MegaCAM (was for Baade too) (8/10/05); Considered "done" because they're no longer needed (10/10/06 |
