File cvt(p,w).st contains a list of times when commands were received by PSE station 'st.' File cvtp is for PSE tape files and cptw is for work tape files. On each line of the list, columns 1-4: time, in year, day of the year, hour-minute, and second, of the frame in which a PSE command appears in ALSEP command verification word columns 5-6: PSE command number and message acceptance pulse (MAP) from the verification word columns 7-10: location of the data on tape files given in tape, file, physical record and logical record numbers PSE command numbers (decimal command code, bits 3-9 of command verification word, in parentheses) are as follows: 1 (51): gain gain change for LPX & LPY 2 (52): gain change for LPZ 3 (53): calibration on/off for SP 4 (54): calibration on/off for LP 5 (55): gain change for SPZ 6 (56): leveling power X motor on/off 7 (57): leveling power Y motor on/off 8 (58): leveling power Z motor on/off 9 (59): uncage arm/fire 10 (60): leveling direction plul/minus 11 (61): leveling speed low/high 12 (62): thermal control mode auto/manual 13 (65): feedback filter in/out 14 (66): coarse leveling sensor in/out 15 (67): leveling mode auto/manual MAP (bit 10 of command verification word) is set when an error check of received command is successful and the command has been acted upon. For example, the first line of file cvtp.12: 1969 323 1430 59.381 9 1 1 1 3 217 means that the time of the frame is 1969 day 323 14h:30m:59.381s, command No. 9 (uncage arm/fire) has been aced upon, and it is found on PSE tape 1, file 1, physical record 3, logical record 217.