Appendix J

Locations and photographs of items in the 2MASS observatory

The Control Room

FIGURE A

Object

1. Uninteruptable Power Supply
2. N2MASS / S2MASS Computer
3. N2MASS / S2MASS Monitor
4. NI2MASS / SI2MASS Monitor
5. Data Silo (Hard disks)
6. DLT Tape Drives
7. Dome Camera Electronics
8. NI2MASS / SI2MASS Computer
9. TCS Monitor
10. TCS Computer
11. Oscilloscope
12. Mirror Limit Switch
13. Telescope Drive Interlock
14. File Cabinet
15. Fuse Panel
16. 110V/220V transformer for Declination Drive
17. Electrical Outlet
18. Declination Motor Control Electronics / Power Supply
19. Right Ascention Motor Control Electronics / Power Supply
20. Mirror Cover Electronics / Power Supply

FIGURE B
N2MASS / S2MASS control room

FIGURE C
N2MASS/S2MASS Computer

FIGURE C-1
Pine E-mail Editor Display on N2MASS / S2MASS

FIGURE C-2
Observers Log on N2MASS / S2MASS

FIGURE C-3
Scheduler Display on N2MASS / S2MASS

FIGURE D
NI2MASS/SI2MASS Computer

FIGURE D-1
Chkpurge Display on NI2MASS / SI2MASS

FIGURE D-2
Main Menu Display on NI2MASS / SI2MASS

FIGURE D-3
Camera Display on NI2MASS / SI2MASS

FIGURE E
TCS Computer (Black box) and oscilloscope

FIGURE E-1
TCS Display

FIGURE F
Electrical panel inside control room and telescope drive interlock (red box in middle)

FIGURE G
Telescope control paddle (left) and Emergency stop button (right)

FIGURE H
Uninteruptable power supplies inside control room

 The Dome

FIGURE I-1

FIGURE I-2


Object

1. Dome Rotation Controller / Emergency Stop Button
2. Mirror Cover Controls
3. Dome Electronics Power Supply / Camera Temperature Readout
4. Exhaust Fan / Exhaust Fan Switch
5. Air Conditioning Controls
6. Light Switch
7. Ladder (2)
8. File Cabinet
9. Emergency Stop Button

FIGURE J
File Cabinet / Tape Storage

FIGURE K
2MASS Camera (Right) & Telescope onboard Ccmputer (Upper left silver box)

FIGURE L
Camera electronics cable connectors (Yellow tabbed lines)

FIGURE M
Camera Heater control line

FIGURE N
Main power cables for the on onboard telescope computer (green labeled cables)

FIGURE O
Camera electronics in dome

FIGURE P
Light switch and Ladders

FIGURE Q
Dome rotation controller (right) and Emergency stop button (left)

FIGURE Q-1
Dome rotation controller diagram (normal switch position shown, during operation)

FIGURE R
Mirror cover controls

FIGURE R-1
Mirror cover control diagram (normal switch position shown)

FIGURE S
Camera temperature readout display (Northern Hemisphere shown)

FIGURE S-1
Camera temperature readout display diagram (normal switch positions shown, readout shown for Northern Hemisphere)

FIGURE T
Camera shutter control wires (pull right wire to close shutter, left wire to open shutter)

FIGURE U
MCE-3 camera electronics inside control room

FIGURE U-1
MCE-3 camera electronics inside control room diagram

FIGURE V
Reset button (red) on the onboard telescope computer

FIGURE W
Dome Air conditioning control (right) and vents (bottom center, left)

FIGURE X
Dome exhaust fan

FIGURE Y
Telescope mirror cooling fans with power switch and camera lens cleaning hole (covered with silver tape)

FIGURE Z
Camera lens cleaning hole

FIGURE AA
Camera fill port (defrosted)

FIGURE AA-1
Camera fill port (defrosted)

FIGURE AA-2
Camera fill port (defrosted)

FIGURE AA-3
Camera fill port diagram

FIGURE AA-4
LN2 Storage dewar connected to camera for filling

FIGURE AA-5
Camera fill port (excess frost)

FIGURE AB
RA Alignment Pointer

FIGURE AC
Declination Alignment Pointer

FIGURE AD
Manual Slit Crank

FIGURE AE
Oscilloscope Diagram

FIGURE AE-1
TAPE DRIVE FRONT PANEL

FIGURE AE-2
TAPE DRIVE BACK

FIGURE AE-3
TAPE DRIVE STATUS DISPLAY PANEL

FIGURE AE-4
TAPE LOADING

FIGURE AE-5
TAPE UNLOADING

Appendix J

Version 2.3 - October 4, 1998