PC Move Program Commands

Telescope Move
Screen Display
Hot Keys
F11, SHIFT-F11, F12 SHIFT-F12,
Guider Commands
Guider Documentation,
Guider Commands
General Utility
Observation File
Coordinate Update

Move Program Commands in Alphabetical Order and Color Coded

Command Description 
AA Enter desired coordinates manually as altitude and azimuth. Otherwise similar to CO.
AM  Toggle between mean and apparent (uncorrected) coordinates. 
CF Close the currently open file. If no file is open, the command is ignored. When the file is closed, number of entries and descriptor are blanked and the name of the currently open file is changed to "No file open".
CO Enter desired coordinates manually. After user confirmation, the telescope is moved to the requested position. The coordinates are assumed to be in the current keyboard equinox.
CS Close the sliding roof shutter at the PSST. Close the instrument shutter at the 72".
DD  Disable the delayed slew. This command is passworded and only available at the 72". 
DE Delete ephemerides. The command may be optionally entered as DE n. If the n is omitted, the program will prompt for it. All ephemerides numbered n or greater are deleted
DJ  Dome Jog. This command may be optionally entered as DJ n. If n is positive, jog the dome n degrees to the right. If n is negative, the jog is to the left. Not available at PSST and Wallace.
DF DOS directory of files command. The entered string is passed to the DOS DIR command. The string may be entered on the command line (eg, DF A:*.EPH or DF C:\USER\*.SRC). If the string is not entered on the command line, the program will prompt for it. 
DM Toggle dome following on or off. Not available at PSST or Wallace.. 
ED Enable delayed slew. Allows adjusting the cutoff for forcing a delayed slew. The default is 15 degrees. It can be made smaller, but it cannot be bigger. Only available at the 72".
EE Enter an ephemeris for use with the EG, LE, SE and EO commands. The command may be optionally entered as EE n. If the n is omitted, the first call to EE allows entry of ephemeris number 1, the second call allows entry of ephemeris number 2, etc. The optional parameter n is used to replace an existing ephemeris (n must be less than or equal to the number of currently entered ephemerides). Each ephemeris entry consists of an object name; the year, month, day of the first ephemeris point; the equinox of the ephemeris; and ephemeris times (h,m,s) and positions. As many times/positions as desired may be entered. Up to 999 ephemerides may be stored. Alternatively, you may provide a file containing the ephemeris. When the object name is requested, enter @fname where fname is the file name of the ephemeris. The file may be an output file from jplephem (ie, a planetary ephemeris); from naifeph (ie, a satellite ephemeris); from ef8 (ie, an asteroid ephemeris); from cef8 (ie, a comet ephemeris); or a special ephemeris generated via IDL (see Marc Buie for details). The program automatically determines the type of ephemeris and reads it correctly. If you enter a "standard" ephemeris (ie, from jplephem, naifeph, cef8, or ef8), each ephemeris file must be for only one object. The program will extract the object name, equinox, and ephemeris information from ephemeris points between T minus 2 hours and T plus 15 hours where This the UT time at which the ephemeris is entered. Thus, one only needs to generate a single data file for an entire run -- the program will extract the appropriate part of the ephemeris for each night. The IDL output file is a special case. This file can have multiple objects and the program will extract the ephemeris for each object in the file for times between T-2h and T+15h. If the input file contains enough ephemerides that adding all of them would exceed the limit of 999 stored ephemerides, the program only stores those which bring the number stored to 999.
EG Move to a position defined at the current time by an ephemeris previously entered via EE. The program calculates the position of the object at the current time (a warning is generated if the position is extrapolated from the ephemeris rather than interpolated) and requests confirmation for the move. Once the telescope moves to the requested position, the calculated rates and current ephemeris number are displayed on the screen, and the telescope goes into track rate lock at those rates.
EO Compute an ephemeris offset as the current position of the telescope minus that calculated from the currently entered ephemeris. Add this offset to all subsequent EG moves. Entering a new ephemeris with EE zeroes the offsets. 
ER Manually enter a rate. The rate appears on the screen, and is tagged with ephemeris number 0. To start tracking at the entered rate, use the LM command. 
EX Toggle display equinox between date equinox and the alternate equinox (see NE). Note that the keyboard equinox changes with the display.
FF Define the position of the fiducial switches (HA and Dec). Not available at the Astrograph.
FG Focus Go. Go to a specific value of the focus readout, relative or absolute.
FI Re-initialize the focus by moving it to the home position. This command also sets the focus mode to absolute. The home position is defined absolute zero.
FL Toggle mechanical flexure correction on and off. 
FN Toggle between fractional and normal display. In normal display, the RA is, for example HH MM SS.S and in fractional it is HH MM.MM.
FR Focus Relative move. Move to a focus position a given number of steps from to the current position.
FS Move telescope to flat field screen position and turn off sidereal track. If dome following is enabled, the dome is moved to the appropriate position and then disabled. 
FT Focus mode Toggle. Toggle the focus readout between displaying the focus in absolute or relative mode.
FZ Define current focus position as zero (relative). That is, as 0R.
GS Get a star from the guider catalog. The program asks if the star is to be near the current telescope position or near some other position. If some other position, it requests that the user enter the desired coordinates (of current keyboard equinox). Next, it requests the magnitude range for the request (the catalog contains stars brighter than mag 14.0). A range from 3.0 to 4.0 can be entered as 3,4 or 4,3 or 3.0,4.0 or 4.0,3.0. Entering a single value is equivalent to requesting all stars brighter than that value.Given this information, the program searches the catalog to find the nearest star (either to the current telescope position or to the user-provided coordinates) which meets the requested magnitude limit. When a star is found, the program reports the RA and Dec (at equinox 2000.0, epoch of date) and at the current display equinox if not 2000.0); the angular separation of the star from the base coordinates (either the current coordinates or the requested coordinates); and the Vmag of the star. The user then is given three choices: Try for another star (the next nearest is found); move to the star and then return to the menu; or return to the menu. Since the GS command replaces the old PP command (PPM star), PP has been retained as a synonym for GS.
HO Move the telescope/dome to their home position. For the 72" and 42" this location is 3 degrees east of the meridian, -3 degrees declination with the dome 80 degrees left of the telescope.. For the 31" this location is 3 degrees west of the meridian, -5 degrees declination with the dome at an azimuth of 105 degrees. For LONEOS this location is on the meridian at -41 degees declination with the dome 13 degrees right of the telescope. For the PSST this is 5 degreees east of the meridian at -49 degrees declination (there is no dome). For Wallace this is on the meridian at -43 degrees declination and the dome is ignored. And, for the astrograph, this is on the meridian at 12 deg 40 min declination with the dome alligned with the telescope. At the 42" and 72" the HOME position is that of the white marks on the setting circles. Sidereal track is turned off after a home.. 
HP Generate a help display. 
IC Re-initialize coordinates. If the telescope is totally lost, one may reset the coordinates from the fiducial switches. The program asks the user to move the telescope manually back to the home position. The telescope is then automatically slewed over the switches to reset the coordinates. The procedure is the same as performed on startup if the saved position file is not found or if the user requested a manual startup. This command is not available at the Astrograph.. 
ID Allows initialization of the dome exactly as in the MOVE startup procedure. At the 72 inch, if the coast initialization is skipped, the parameters are left as they currently are defined. Only available at the 72", LONEOS, and Astrograph. The other telescopes do not have domes or have barcode readers and do not need this command. 
KD  Turn off a deadman timer which might have been turned on via a remote command.
KE Change equinox of keyboard coordinates, but not display equinox. 
KM Keypad (relative) move. This routine uses the numeric keypad to do relative moves. The move is D arc seconds where D can be changed using the keypad + and - keys and may be varied between 0.5 and 300 arcsec. Each time the value is changed, it is flashed at the bottom of the screen. The current value can also be shown (without changing it) with the F1 key. The 8 key moves the telescope north; the 2 key south; the 4 key east; the 6 key west; the 7, 9, 3, and 1 key are combinations. The current step size is retained between successive calls to KM. Type F2 to exit from KM. 
LE Display a list of currently entered ephemeris numbers/object names. 
LI  Turn dome light on/off at the 31" and 72"
LM  Coordinate lock mode modify. The program requests that you enter an S to lock at sidereal rate; T to lock at track rate (using the rates currently on the display); or O to turn lock off. The command CL is synonymous with LM. 
LS  Toggle light supression on/off at the 31". Normally, the light goes on at the start of a slew and off at the end. LS allows supressing this behavior.
MF Modify mechanical flexure and/or dome offset constants.
NE Enter a new alternate equinox.
NS Move to the nearest star in the currently opened file. If this star is not acceptable, move to the next nearest, etc.
OF Open a coordinates file. The name of the file is requested. Once the file is opened, the third area of the screen displays the file name, number of entries in the file and descriptor for the file. If a path is not specified, the file is assumed to reside on the MOVE disk in the default user directory, C:\USER. If the file does not exist, an error message is printed and control returns to the menu.
OG Move to an object by its name (Messier NGC, IC, HR, Bayer, Flamsteed, or common name) 
OL Modify/update/change an observing list file. When in this mode, the screen is cleared of the display and the user can use the whole screen for input and output. One may create a new file, add entries to a file, delete entries from a file, list a file, or modify a file. Each star entry in the file consists of a 20 character star ID, the star's RA/DEC, proper motions or sky offset, equinox, and a 28 character comment field. If no path is specified in the file name, the file is assumed to be in the default directory (C;\USER). Files created before 05/22/95 do not have proper motions or sky offsets. The program will properly distinguish between old and new style files in a way which is transparent to the user. However, all files created after this date will be in the new style (with proper motions or sky offsets). When a file is created, the program asks if the file will have proper motions or sky offsets. In any later reference to that file, the program will automatically recognize the type.
OS Open the sliding roof shutter at PSST. Open the instrument shutter at the 72"
PF Display (print) mechanical flexure and dome offset constants.
PM Move back to any one of twenty previous positions. Any move which the telescope makes successfully (is not aborted) is added to the previous move table and can be returned to via the PM command. Note that relative moves (via a KM, RM or remote relative move) are not added to the table. The last twenty successful moves are stored in the table. The current object name, position and equinox can be saved in the table with the SC command. PM may be optionally entered as PM n where n is the desired position number. Note that a PM to a previous ephemeris position is equivalent to an EG to that object. 
QU Exit MOVE (confirmation is requested). Proper exit is necessary for parameter files to be stored so that the may be used the next time MOVE is started..
RE Do full reset of coordinates by manually setting on a known star and entering its coordinates and equinox on the terminal. Note that the RA/DEC of this star must be known accurately at some equinox -- the actual equinox does not matter. A limited set of MOVE commands are accepted while within the RE command -- TR, FN, EX and NE.
RF Read from the currently opened file. A star number is requested. Appropriate error messages are generated if a file is not currently open or if a number larger than the number of objects in the file is requested. The computer shows the Star ID, RA, Dec, and comment field and asks for confirmation before moving. After a move, the program returns to the main menu. The file remains open. 
RJ This is a rectangular jog. This was a routine written especially for one event using OSIRIS at the 72" and may never be used again. 
RM Relative move. Allows user to enter offsets in either of two modes: as an RA and Dec offset (in arcsec) from the current telescope position or as a position angle and total offset from the current telescope position. The telescope then moves to the new position. The total move must be less than two degrees.
RT Toggle remote command port on/off. It is on on entry to MOVE. The status of this toggle is shown on the display. The remote option is used for commanding from a remote computer.
SC Save current object name, position & equinox on the previous move stack. 
SD Set the system date. If the WWV clock is running properly, it will reset the date correctly within a minute so that this command has no effect 
SE Show an ephemeris previously entered via an EE command The name, equinox, times, positions, computed velocities, and offsets are shown. 
SF Read the sky position from the currently opened file. The sky position is that position the RF command would generate plus the sky offset. A star number is requested. Appropriate error messages are generated if a file is not currently open or if a number larger than the number of objects in the file is requested. The computer shows the Star ID, RA, Dec, and comment field and asks for confirmation before moving. After a move, the program returns to the main menu. The file remains open. 
SH Set the coordinates of the current location to be those of the home position for this telescope.
SL SLeep. Put the telescope into sleep mode. Write out the current coordinates, disable the paddle, most remote commands, and the keyboard (except for the WK command to wake up). Use this command if MOVE is left running for some time but not actually being used. 
SM Toggle between Sun and Moon display on screen (MS will also do this). 
SN Spiral or jail bar scan. The program reqests the scan parameters and the scan rate. Type any key or hit any paddle button to start and then to stop. 
SR Allows modification of the telescope rates (sidereal, guide, or set). The default rate for guide is 5 arcsec/sec and for set is 50 arcsec/sec. The program allows setting the RA and Dec rates differently or to the same value. The slew rate cannot be changed by the user. 
ST Set the system time. If the WWV clock is running properly, it will reset the time correctly within a minute so that this command has no effect.
TF  Toggle "flipped" mode on/off at the Astrograph. In "flipped" mode the internal sense of north/south is reversed so that the paddle and encoders work correctly even though the telescope is "backwards". .
TI Toggle time display between UT and MST.
TR Sidereal tracking toggle. Reverses the current state of the sidereal rate tracking each time it is entered. The current state is indicated on the display. 
UC Use the coordinates of the last move (the most recent addition to the previous move table) to update the display. The update is made in the current display equinox, no matter what the equinox of the last move was. The size of the update is shown on the screen. If the update is made to a moving object, the coordinates are updated to the computed position at the time of the update, not the position the telescope originally moved to.  
UI Move telescope to the Chromey spot (PASP, 108, 944). This spot is supposed to have the most uniform illumination at sunset or sunrise. It is on the Sun's meridian, 20 degrees on the opposite side of the zenith as the sun. 
WK  Wake up the telescope if it has been asleep. This returns MOVE to its normal operating mode. 
ZE Move telescope to the zenith. If dome following is enabled, the dome is moved to an azimuth of 180 degrees and sidereal track is turned off. 


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