Computer Subsystem

COMPUTER SUBSYSTEM, GENERAL INTERFACE each instruction and data word has its own address which defines where it is located in the memory. 8,192 words 8 banks 128 sense lines 16 strands ADDRESSING, READING, AND WRITING INTO CORE ARRAY 18 y BOTTOM 17 SELECTION 6 SWITCHES 15 c(Sg. 7.6> 14 13

Coarse Align

RELATIONSHIP OF BALL INDICATOR AND IMU 1. ATTITUDE ERROR ATTITUDE DESIRED - ACTUAL ATTITUDE. Z THE BALL IS-OF THE INSIDE-OUT CONVENTION. 3. EULER ANGLE CONVENTION IS PITCH, YAW, ROLL 4. THE BALL ATTITUDE SHOWN IS PITCH 345 , YAW 335 , AND ROLL 300 , WITH RESPECT TO THE NAVIGATION BASE INDEX. SCS-100B i l

Tracker Horizon Sensor Location

Apollo Star Tracking

OBJECTIVE FOCAL COLLECTOR LENS PLANE LENS SEXTANT HEAD INDEX MIRROR SIDE TAB HOUSING AND LENS ASSEMBLY A-POS LENS B-NEG LENS OBJECTIVE HOUSING AND LENS ASSEMBLY A-POS LENS B-NEG LENS OBJECTIVE FORK DRIVE SIGNAL MOTION LIGHT TO PHOTOTUBE SIGNAL CONTENT VARI HIGH VOLTAGE P S amp STAR PRESENCE DETECTOR AGO amp STAR - PRESENCE -SIGNAL 1 2 RECTIFIED SIGNAL PEAK VALUE IS STORED NEGATIVE RECTIFIED SIGNAL RECTIFIED DETECTOR OUTPUTS