The table below lists the DCS keywords as of 18 January 2000 on Keck II. The columns include the keyword, a brief description, and the format.
These keywords are in the order output by a "show -s dcs keywords" command, which also happens to be (more or less) in alphabetical order.
| Keyword | Description | Format |
|---|---|---|
| AIRMASS | air-mass | double number |
| AUTACK | guider-cmdAck | integer number |
| AUTACTIV | guider-active | logical |
| AUTANGL | guider-to-porg-angle | double number |
| AUTAZAC | guider-az-accumulated-err | double number |
| AUTAZBW | guider-az-posn-loop-bandwidth | double number |
| AUTAZER | guider-az-err | double number |
| AUTAZGN | guider-az-effective-gain | double number |
| AUTAZGN0 | guider-az-nominal-gain | double number |
| AUTBADST | guider-badstat | logical |
| AUTCAPR | guider-capture-radius | double number |
| AUTCYCLE | guider-cycle | integer number |
| AUTELAC | guider-el-accumulated-err | double number |
| AUTELBW | guider-el-posn-loop-bandwidth | double number |
| AUTELER | guider-el-err | double number |
| AUTELGN | guider-el-effective-gain | double number |
| AUTELGN0 | guider-el-nominal-gain | double number |
| AUTFLIP | guider-to-porg-y-flip | logical |
| AUTFWHM | guider-fwhm | double number |
| AUTGO | guider-go-flag | enum |
| AUTNOST | guider-nostat | logical |
| AUTPAUSE | guider-pause | integer number |
| AUTPER | guider-period-flag | double number |
| AUTREFX | guider-X-reference | double number |
| AUTREFY | guider-Y-reference | double number |
| AUTRESUM | guider-resume | integer number |
| AUTRESX | guider-resumeX | double number |
| AUTRESY | guider-resumeY | double number |
| AUTSEQNUM | guider-seqnum | integer number |
| AUTSKY | guider-sky-counts | double number |
| AUTSTAR | guider-star-counts | double number |
| AUTSTOP | guider-stop | integer number |
| AUTTIME | guider-total-time | double number |
| AUTXCENT | guider-Xcent | double number |
| AUTYCENT | guider-Ycent | double number |
| AUXBOOT | aux-cage-reboot | logical |
| AUXCPU | aux-cpu-usage | double number |
| AUXUP | aux-cage-up-status | logical |
| AUXVERS | aux-cage-software-version | string |
| AXEERRS | axes-error-string | string |
| AXEERVL | axes-error-status | integer number |
| AXEHALT | axes-halt-command | logical |
| AXEINIT | axes-initialization-command | logical |
| AXENEED | axes-control-needed | logical |
| AXESTAT | axes-control-status | enumm |
| AXESTBY | axes-standby-command | logical |
| AXESTOP | axes-emergency-stop-command | logical |
| AXESTST | axes-state-string | string |
| AZ | telescope-azimuth | double number |
| AZBCODE | telescope-azimuth-barcode | double number |
| AZBANDW | az-posn-loop-bandwidth | double number |
| AZDEST | azimuth-destination | double number |
| AZOFF | azimuth-offset | double number |
| AZSRVER | azimuth-servo-error | double number |
| AZPE | azimuth-servo-posn-error | double number |
| AZSRVMO | azimuth-servo-mode | integer number |
| CA | collimation-azimuth | double number |
| CAINC | collimation-azimuth-increment | double number |
| CALOCAL | collimation-azimuth-local | double number |
| CASESS | collimation-azimuth-session | double number |
| CE | collimation-elevation | double number |
| CEINC | collimation-elevation-increment | double number |
| CELOCAL | collimation-elevation-local | double number |
| CESESS | collimation-elevation-session | double number |
| CHPACC | chopper-acceleration | double number |
| CHPACCLM | chopper-acceleration-limit | double number |
| CHPAMP | chopper-amplitude | double number |
| CHPANG | chopper-angle | double number |
| CHPAZDEM | chopper-azimuth-demand | integer number |
| CHPAZGN | chopper-az-gain | double number |
| CHPAZOFF | chopper-az-offset | double number |
| CHPAZZR | chopper-az-zero | integer number |
| CHPCLKAN | chopper-clock-angle | double number |
| CHPCONAN | chopper-cone-angle | double number |
| CHPCYCLE | chopper-cycle-number | integer number |
| CHPDC | chopper-duty-cycle | double number |
| CHPDCMIN | chopper-duty-cycle-minimum | double number |
| CHPDCMAX | chopper-duty-cycle-maximum | double number |
| CHPDCOFF | chopper-dec-offset | double number |
| CHPDELAY | chopper-delay | double number |
| CHPEBAND | chopper-error-band | double number |
| CHPECAZG | chopper-error-correction-azimuth-gain | integer number |
| CHPECAZS | chopper-error-correction-azimuth-shift | integer number |
| CHPECBIN | chopper-error-correction-number-of-bins | integer number |
| CHPECELG | chopper-error-correction-elevation-gain | integer number |
| CHPECELS | chopper-error-correction-elevation-shift | integer number |
| CHPECERR | chopper-error-correction-error-word | integer number |
| CHPECFOG | chopper-error-correction-focus-gain | integer number |
| CHPECFOS | chopper-error-correction-focus-shift | integer number |
| CHPECSCL | chopper-error-correction-scale-factor | integer number |
| CHPECSMO | chopper-error-correction-smoother-divisor | integer number |
| CHPECORR | chopper-error-correction-mode | logical |
| CHPELDEM | chopper-elevation-demand | integer number |
| CHPELGN | chopper-el-gain | double number |
| CHPELOFF | chopper-el-offset | double number |
| CHPELZR | chopper-el-zero | integer number |
| CHPERRS | chopper-error-string | string |
| CHPERVL | chopper-error-status | integer number |
| CHPFREQ | chopper-frequency | double number |
| CHPFLTIM | chopper-flare-time | double number |
| CHPHALT | chopper-halt-command | logical |
| CHPIBX | chopper-internal-base-x | double number |
| CHPIBY | chopper-internal-base-y | double number |
| CHPINIT | chopper-initialization-command | logical |
| CHPIXOFF | chopper-instrument-x-offset | double number |
| CHPIYOFF | chopper-instrument-y-offset | double number |
| CHPMODE | chopper-mode | enumm |
| CHPMODID | chopper-module-id | logical |
| CHPNEED | chopper-needed | logical |
| CHPOFF | chopper-offset | double number |
| CHPON | chopper-on | logical |
| CHPFOVER | chopper-fault-override | logical |
| CHPPARAN | chopper-parallactic-angle | double number |
| CHPPOS | chopper-sample-number | integer number |
| CHPPOSTR | chopper-post-trigger-time | integer number |
| CHPPOSTT | chopper-sample-total | integer number |
| CHPPOWER | chopper-power | double number |
| CHPPOWLM | chopper-power-limit | double number |
| CHPPRETR | chopper-pre-trigger-time | integer number |
| CHPRAOFF | chopper-ra-offset | double number |
| CHPRELTO | chopper-relative-to | enum |
| CHPROTAN | chopper-rotator-angle | double number |
| CHPSIM | chopper-simulation-mode | logical |
| CHPTRGSQ | chopper-trigger-square-wave-type | enum |
| CHPTRIG | chopper-trigger-mode | enum |
| CHPLOCAL | chopper-local-remote-mode | logical |
| CHPSTAT | chopper-state | enumm |
| CHPSTBY | chopper-standby-command | logical |
| CHPSTST | chopper-state-string | string |
| CHPSTYLE | chopper-chop-style | logical |
| CHPTYPE | chopper-chop-type | enum |
| CHPTYPE2 | chopper-chop-type-2 | enum |
| CIEBOOT | cie-cage-reboot | logical |
| CIECPU | cie-cpu-usage | double number |
| CIEUP | cie-cage-up-status | logical |
| CIEVERS | cie-cage-software-version | string |
| COPRESET | collimation-preset | enumm |
| CURRINST | current-instrument | string |
| DATE | universal-date | double number |
| DATE-OBS | universal-date-of-observation | double number |
| DCSERRS | drive-and-control-error-string | string |
| DCSERVL | drive-and-control-error-status | integer number |
| DCSHALT | drive-and-control-halt-command | logical |
| DCSHOST | drive-and-control-host | string |
| DCSINIT | drive-and-control-initialization-command | logical |
| DCSINDON | drive-and-control-initialization-done | logical |
| DCSLOCK | drive-and-control-locked | logical |
| DCSSTAT | drive-and-control-status | enumm |
| DCSSTBY | drive-and-control-standby-command | logical |
| DCSSTST | drive-and-control-state-string | string |
| DCSVERS | drive-and-control-version | string |
| DDEC | diff-decl-rate | double number |
| DEC | telescope-declination | double number |
| DECBASE | telescope-declination-base | double number |
| DECOFF | declination-offset | double number |
| DIFFPTDW | difference-betw-pri-mirr-temp-dewpoint | double number |
| DIFFSTDW | difference-betw-secondary-temp-dewpoint | double number |
| DOFFGE | diff-tracking-offset-guide-ena | integer number |
| DOMEDSEL | dome-demand-select | enum |
| DOMEERRS | dome-error-string | string |
| DOMEERVL | dome-error-status | integer number |
| DOMEHALT | dome-halt-command | logical |
| DOMHORND | dome-horn-disable-command | logical |
| DOMHORNE | dome-horn-enable-command | logical |
| DOMHORNS | dome-horn-sound-command | logical |
| DOMEINIT | dome-initialization-command | logical |
| DOMELITE | dome-light-control-and-status | enum |
| DOMEPOSN | dome-azimuth | double number |
| DOMENEED | dome-needed | logical |
| DOMESLEW | dome-slew-command | logical |
| DOMESTAT | dome-status | enumm |
| DOMESTBY | dome-standby-command | logical |
| DOMESTST | dome-state-string | string |
| DRA | diff-ra-rate | double number |
| DTFRAM | differential-tracking-frame | integer number |
| DTRACK | differential-tracking-enabled | logical |
| DTRESET | differential-tracking-reset | logical |
| DTRX | diff-x-rate | double number |
| DTRY | diff-y-rate | double number |
| DSTART | diff-rate-start-mjd | double number |
| EL | telescope-elevation | double number |
| ELBCODE | telescope-elevation-barcode | double number |
| ELBANDW | el-posn-loop-bandwidth | double number |
| ELDEST | elevation-destination | double number |
| ELOFF | elevation-offset | double number |
| ELSRVER | elevation-servo-error | double number |
| ELPE | elevation-servo-posn-error | double number |
| ELSRVMO | elevation-servo-mode | integer number |
| EQUINOX | telescope-equinox | double number |
| ERRBAR | targ-coord-error-bar | double number |
| ESTOPSAA | emergency-stop-status-SAA | logical |
| ESTOPAAA | emergency-stop-status-AAA | logical |
| EXPOSIP | instrument-exposure-in-progress | logical |
| FLIMAGIN | flat-lamp-control-1 | logical |
| FLSPECTR | flat-lamp-control-2 | logical |
| FLAMP3 | flat-lamp-control-3 | logical |
| FLAMP4 | flat-lamp-control-4 | logical |
| FLAMP5 | flat-lamp-control-5 | logical |
| FLAMP6 | flat-lamp-control-6 | logical |
| FOCALLEN | telescope-focal-length | double number |
| FOCALSTN | focal-station | enum |
| FOCALSTR | focal-station-string | string |
| FRAME | telescope-frame | enumm |
| GOTOBASE | go-to-base | logical |
| GUIDING | guiding-on | logical |
| GUIDWAVE | guidestar-wavelength | double number |
| HA | telescope-hour-angle | double number |
| HALT | halt-telescope | logical |
| INSTANGL | porg-to-instrument-angle | double number |
| INSTFLIP | porg-to-instrument-y-flip | logical |
| INSTRUME | instrument-name | string |
| INSTXOFF | instrument-x-offset | double number |
| INSTYOFF | instrument-y-offset | double number |
| LATITUDE | geodetic-latitude | double number |
| LOGSET | loglevel-set-bit | integer number |
| LST | local-apparent-sidereal-time | double number |
| MARK | mark-current-as-base | logical |
| MARKCOLL | mark-collimation | integer number |
| MJD | modified-julian-date | double number |
| MJD-OBS | modified-julian-date-of-observation | double number |
| MOVEPEND | move-pending | logical |
| MOVETMOT | move-pend-timeout | integer number |
| MOVETEL | move-telescope | enum |
| NASCCWLM | nasmyth-ccw-limit | double number |
| NASCWLM | nasmyth-cw-limit | double number |
| NASELLM | nasmyth-el-limit | double number |
| NODSET | nod-set | enumm |
| NODTEL | nod-telescope | enumm |
| NODVIS | nod-visible | logical |
| NOGROT | select-non-rotated-guider | integer number |
| NRX | nasmyth-rotator-displacement-x | double number |
| NRY | nasmyth-rotator-displacement-y | double number |
| PARANG | parallactic-angle-astrometric | double number |
| PARANTEL | parallactic-angle-telescope | double number |
| PMNOSUP | proper-mtn-not-supplied | logical |
| PNTSNAP | snap-pointing-data | integer number |
| POCANCEL | pointing-origin-cancel | logical |
| PONAME | pointing-origin-name | string |
| PONAME1 | pointing-origin-name-1 | string |
| PONAME2 | pointing-origin-name-2 | string |
| PONAME3 | pointing-origin-name-3 | string |
| PONAME4 | pointing-origin-name-4 | string |
| PONAME5 | pointing-origin-name-5 | string |
| PONAME6 | pointing-origin-name-6 | string |
| PONAME7 | pointing-origin-name-7 | string |
| PONAME8 | pointing-origin-name-8 | string |
| PONAME9 | pointing-origin-name-9 | string |
| POOFF | pointing-origin-offset | logical |
| POPRESET | pointing-origin-preset | logical |
| PORESET | pointing-origin-reset | logical |
| POSELECT | pointing-origin-select | logical |
| POSTAT | pointing-origin-status | mask |
| POSTAT1 | pointing-origin-status-1 | mask |
| POSTAT2 | pointing-origin-status-2 | mask |
| POSTAT3 | pointing-origin-status-3 | mask |
| POSTAT4 | pointing-origin-status-4 | mask |
| POSTAT5 | pointing-origin-status-5 | mask |
| POSTAT6 | pointing-origin-status-6 | mask |
| POSTAT7 | pointing-origin-status-7 | mask |
| POSTAT8 | pointing-origin-status-8 | mask |
| POSTAT9 | pointing-origin-status-9 | mask |
| POTOTAL | pointing-origin-total | mask |
| POXBASE | pointing-origin-x-base | double number |
| POXOFF | pointing-origin-x-offset | double number |
| POXPOS | pointing-origin-xposition | double number |
| POXPOS1 | pointing-origin-xposition-1 | double number |
| POXPOS2 | pointing-origin-xposition-2 | double number |
| POXPOS3 | pointing-origin-xposition-3 | double number |
| POXPOS4 | pointing-origin-xposition-4 | double number |
| POXPOS5 | pointing-origin-xposition-5 | double number |
| POXPOS6 | pointing-origin-xposition-6 | double number |
| POXPOS7 | pointing-origin-xposition-7 | double number |
| POXPOS8 | pointing-origin-xposition-8 | double number |
| POXPOS9 | pointing-origin-xposition-9 | double number |
| POYBASE | pointing-origin-y-base | double number |
| POYOFF | pointing-origin-y-offset | double number |
| POYPOS | pointing-origin-yposition | double number |
| POYPOS1 | pointing-origin-yposition-1 | double number |
| POYPOS2 | pointing-origin-yposition-2 | double number |
| POYPOS3 | pointing-origin-yposition-3 | double number |
| POYPOS4 | pointing-origin-yposition-4 | double number |
| POYPOS5 | pointing-origin-yposition-5 | double number |
| POYPOS6 | pointing-origin-yposition-6 | double number |
| POYPOS7 | pointing-origin-yposition-7 | double number |
| POYPOS8 | pointing-origin-yposition-8 | double number |
| POYPOS9 | pointing-origin-yposition-9 | double number |
| PRESERVE | preserve-pointing | logical |
| PRESROT | preserve-rotator-physical-position | enum |
| PRIMTEMP | acs-primary-mirror-temp | double number |
| PRMAZ | azimuth-prm-offset | double number |
| PRMEL | elevation | double number |
| RA | telescope-right-ascension | double number |
| RABASE | telescope-right-ascension-base | double number |
| RAOFF | right-ascension-offset | double number |
| REL2BASE | relative-to-base | enum |
| REL2CURR | relative-to-current | enum |
| ROTCASID | cassegrain-rotator-module-id | string |
| ROTCCWLM | rotator-ccw-limit | double number |
| ROTCWLM | rotator-cw-limit | double number |
| ROTDEST | rotator-user-destination | double number |
| ROTDETS1 | rotator-destination-timestamp1-ut1-slow | double number |
| ROTDETS2 | rotator-destination-timestamp2-ut1-slow | double number |
| ROTERCNT | rotator-error-count | integer number |
| ROTERRS | rotator-error-string | string |
| ROTERVL | rotator-error-status | integer number |
| ROTFWDID | forward-cassegrain-rotator-module-id | string |
| ROTHALT | rotator-halt-command | logical |
| ROTHALTC | rotator-halt-command-complement | logical |
| ROTHERE | rotator-here | logical |
| ROTOFF | rotator-offset | double number |
| ROTINIT | rotator-initialization-command | logical |
| ROTINITC | rotator-initialization-command-complement | logical |
| ROTLBCID | left-bent-cass-rotator-module-id | string |
| ROTMODE | rotator-tracking-mode | enumm |
| ROTNEED | rotator-needed | logical |
| ROTNEWS | rotator-new-destination-slow | integer number |
| ROTBASE | rotator-base-angle | double number |
| ROTCALAN | rotator-calibration-angle | double number |
| ROTREFAN | rotator-reference-angle | double number |
| ROTPDEST | rotator-physical-destination | double number |
| ROTPDSTS | rotator-physical-destination-slow | double number |
| ROTPOSN | rotator-user-position | double number |
| ROTPOTS1 | rotator-position-timestamp1-ut1-slow | double number |
| ROTPOTS2 | rotator-position-timestamp2-ut1-slow | double number |
| ROTPPOSN | rotator-physical-position | double number |
| ROTRBCID | right-bent-cass-rotator-module-id | string |
| ROTSEL | rotator-select | enum |
| ROTSRVER | rotator-servo-error | double number |
| ROTSTAT | rotator-state | enumm |
| ROTSTBY | rotator-standby-command | logical |
| ROTSTBYC | rotator-standby-command-complement | logical |
| ROTSTST | rotator-state-string | string |
| ROTZERO | rotator-zero-angle | double number |
| SCALED | scaled-offset | logical |
| SECACTU1 | secondary-actuator-1 | double number |
| SECACTU2 | secondary-actuator-2 | double number |
| SECACTU3 | secondary-actuator-3 | double number |
| SECOFFE | secondary-el-offset | double number |
| SECOFFR | secondary-rot-offset | double number |
| SECOFFT | secondary-temp_offset | double number |
| SECCALIB | secondary-calib-comp | logical |
| SECEL | secondary-auto-el-comp | logical |
| SECERRS | secondary-error-string | string |
| SECERVL | secondary-mirror-error-status | integer number |
| SECFOCUS | secondary-mirror-focus-raw | double number |
| SECFOCOF | telescope-focus-raw-offset | double number |
| SECHALT | secondary-halt-command | logical |
| SECID | secondary-module-id | string |
| SECINIT | secondary-initialization-command | logical |
| SECMOVE | move-secondary | logical |
| SECMTEMP | secondary-mirror-temp | double number |
| SECNEED | secondary-needed | logical |
| SECRAW | secondary-cmd-raw-focus | logical |
| SECREQE | move-req-el-comp | logical |
| SECREQR | move-req-rot-comp | logical |
| SECREQT | move-req-temp-comp | logical |
| SECROT | secondary-auto-rot-comp | logical |
| SECROTAM | secondary-auto-rot-comp-amplitude | double number |
| SECROTPH | secondary-auto-rot-comp-phase | double number |
| SECSCALE | secondary-mirror-to-sky-scale | double number |
| SECSTAT | secondary-state | enumm |
| SECSTBY | secondary-standby-command | logical |
| SECSTST | secondary-state-string | string |
| SECTEMP | secondary-auto-temp-comp | logical |
| SECTHETX | secondary-mirror-thetax | double number |
| SECTHETY | secondary-mirror-thetay | double number |
| SECXDEM | secondary-mirror-thetax-demand | double number |
| SECYDEM | secondary-mirror-thetay-demand | double number |
| SECTHXOF | secondary-mirror-thetax-offset | double number |
| SECTHYOF | secondary-mirror-thetay-offset | double number |
| SECZ | secondary-mirror-focus-compensated | double number |
| SECZDEM | secondary-mirror-focus-compensated-demand | double number |
| SHTCTRLL | shutter-control-lower | enum |
| SHTCTRLU | shutter-control-upper | enum |
| SHTPOSL | shutter-elevation-lower | double number |
| SHTPOSU | shutter-elevation-upper | double number |
| SHTPOWER | shutter-drive-power-control-command | string |
| SHTSTSL | shutter-status-lower | string |
| SHTSTSU | shutter-status-upper | string |
| SIMULATE | simulating-dcs | logical |
| SLEWONLY | slew-only-total-time | double number |
| SLEWTIME | total-slew-time | double number |
| ST | local-apparent-sidereal-time | double number |
| STRKERR | servo-tracking-error-sky | double number |
| TARGAZ | target-azimuth | double number |
| TARGDEC | target-declination | double number |
| TARGDCJ2 | target-declination-j2000 | double number |
| TARGEL | target-elevation | double number |
| TARGEPOC | target-epoch | double number |
| TARGEQUI | target-equinox | double number |
| TARGFRAM | target-frame | enumm |
| TARGNAME | target-name | string |
| TARGPLAX | target-parallax | double number |
| TARGPMDC | target-proper-motion-dec | double number |
| TARGPMRA | target-proper-motion-ra | double number |
| TARGRA | target-right-ascension | double number |
| TARGRAJ2 | target-right-ascension-j2000 | double number |
| TARGRADV | target-radial-velocity | double number |
| TARGWAVE | target-wavelength | double number |
| TDCBOOT | tdc-cage-reboot | logical |
| TDCCPU | tdc-cpu-usage | double number |
| TDCUP | tdc-cage-up-status | logical |
| TDCVERS | tdc-cage-software-version | string |
| TELCCWLM | telescope-ccw-limit | double number |
| TELCWLM | telescope-cw-limit | double number |
| TELESCOP | telescope-name | string |
| TELFOCUS | telescope-focus-compensated | double number |
| TELFOCOF | telescope-focus-compensated-offset | double number |
| TELGUARD | telescope-guard-band | double number |
| TELLOLM | telescope-lower-el-limit | double number |
| TELSHORT | tel-shortest-path | logical |
| TELUPLM | telescope-upper-el-limit | double number |
| TERTERRS | tertiary-error-string | string |
| TERTERVL | tertiary-error-status | integer number |
| TERTHALT | tertiary-halt-command | logical |
| TERTINIT | tertiary-initialization-command | logical |
| TERTMOVE | move-tertiary | logical |
| TERTNEED | tertiary-needed | logical |
| TERTDEST | tertiary-destination | enum |
| TERTPOSN | tertiary-position | enum |
| TERTSTAT | tertiary-state | enumm |
| TERTSTBY | tertiary-standby-command | logical |
| TERTSTST | tertiary-state-string | string |
| TPESTEMP | top-end-socket-temp | double number |
| TRACKING | telescope-servos-tracking | logical |
| TRFIELD | tracking-field-size | double number |
| TRTHRESH | tracking-threshold | double number |
| TRHYST | tracking-hysteresis | double number |
| TUBEFLEX | tube-flexure | double number |
| TUBETEMP | tube-temperature | double number |
| TVANGL | porg-to-tv-angle | double number |
| TVFLIP | porg-to-tv-y-flip | logical |
| TVANGL0 | porg-to-tv-angle-0 | double number |
| TVFLIP0 | porg-to-tv-y-flip-0 | logical |
| TVANGL1 | porg-to-tv-angle-1 | double number |
| TVFLIP1 | porg-to-tv-y-flip-1 | logical |
| TVANGL2 | porg-to-tv-angle-2 | double number |
| TVFLIP2 | porg-to-tv-y-flip-2 | logical |
| TVXOFF | tv-x-offset | double number |
| TVYOFF | tv-y-offset | double number |
| USEPDPNT | use-pdest-for-pointing | logical |
| XIMOFF | XIM-offset | double number |
| YIMOFF | YIM-offset | double number |
| UT | coordinated-universal-time-1 | double number |
| UTC | coordinated-universal-time | double number |
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