| Date | Author | Event |
|---|---|---|
| 19980815 | Marketon | Sent source to Swales for re-surfacing with BaSO4. |
| 19980820 | Marketon | Increased lamp count from 12 to 16 and installed new lamps |
| 19990228 | Marketon | Moved sphere from Building 22 to Building 33. |
| 19991013 | Marketon | Replaced Kikusui power system with CF Standard Source Power System (SSPS). |
| 19991105 | Cooper | Replaced lamps. |
| 20000201 | Cooper | Work on monitor port bracket caused several approximately 1″ square paint chips to collect at bottom. |
| 20000223 | Marketon | HP DVM recalibrated. |
| 20000225 | Marketon | Technicians grounded lamp power supplies’ DC negative to chassis; chassis to ground. |
| 20000620 | Marketon | Power Supply #3 blowing fuses. Replaced unit with Power Supply #3 from SSPS #2 pending repair of SSPS #1 Power Supply #3. |
| 20000814 | Marketon | Channel #3 (DAC #1) output low, resulting in low power supply output. Replaced DAC with SSPS #2 DAC pending repair of SSPS #1 DAC #1. |
| 20000815 | Marketon | Modified monitor port to accept FRMS, and installed FRMS. Vacuumed loose paint flakes from Hardy interior. |
| 20000911 | Cooper | Replaced all lamps. Lamps burned in for 24 hours. |
| 20001017 | Cooper | Installed repaired Power Supply #3. Power Supply #4 blowing fuse. Replaced unit with Power Supply #3 from SSPS #2 pending repair of SSPS #1 Power Supply #4. |
| 20010109 | Marketon | Removed FRMS. |
| 20010222 | Marketon | Installed FRMS. |
| 20010305 | Marketon | Replaced LOB #1 with LOB #2 (includes thermometry on shunt resistors. Replaced multimeter/multiplexer pair with acquisition system Upgraded SSF to SSF version 2, including SSPS. |
| 20010319 | Cooper | Removed FRMS. |
| 20010328 | Cooper | Replaced FRMS. |
| 20011207-20020306 | Marketon | Sphere out of operation to: – Repaint front hemisphere. – Fab, install, paint new lamp mounts. – FRMS 2-color detector upgrade. – FRMS 9-slot chopper blade upgrade. – ECS installation. – THMS installation. – Lamp control box venting. |
| 20020318 | Marketon | Removed Exhaust Vent Port baffling to improve exhaust draw for ECS. |
| 20030113 | Cooper | Replaced all lamps. Lamps burned in for 24 hours. |
| 20030611 | Marketon | Discovered compressor on dehumidifier had cut off. Inspected and turned on the compressor. |
| 20040407 | Cooper | Swapped out defective DAC/488 for a spare. |
| 20040611 | Cooper | Replaced all lamps. Vacuumed bottom of sphere. Lamps burned in for 24 hours. |
| 20050413 | Cooper | Calibrated resistors in switch box. |
| 20050419 | Cooper | Replaced lamp number 1. |
| 20060119 | Cooper | Replaced all 16 lamps, 24 hour burn-in. |
| 20071009 | Cooper | Replaced all 16 lamps, 24 hour burn-in. |
| 20080331 | Cooper | Replaced 3 lamps: #7, 15, 16. |
| 20080818 | Cooper | Replaced all 16 lamps. 24 hour burn-in. |
