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SET X

        CLIC\SET X param1 [param2 ...] [/LIMITS min1 max1 [min2 max2 ...]]

    Choose the parameters to be plotted along X-axes by command PLOT.

    Parameters valid in both TIME mode and SPECTRAL mode:
      AMPLITUDE,   PHASE,  REAL,  or  IMAGINARY:   referring  to   the visi-
        bility  in  the  spectral window(s) or baseband(s) or  IF(s),  side-
        band(s),   baseline(s)  (or  antenna(s))  selected  by  SET SPW, SET
        BBAND, SET IF, SET BANDS, SET  BASELINES  or   SET   ANTENNAS   com-
        mands.    Only  correlation  scans will be plotted, not autocorrela-
        tions.

      AUTOCORR.   :   the  autocorrelation  power  measured  in    the  sub-
        band(s),   antenna(s)   selected  by  SET  SPW (or SET BB)  and  SET
        ANTENNAS commands.  Only autocorrelation scans will be plotted, (in-
        cluding calibration scans), not correlations.

    Parameters valid in SPECTRAL mode only:

      CHANNEL  :   channel  number  in the correlator (use ony  this  one if
        Fourier Transform has not been made).

      VELOCITY :  normally with respect to LSR.

      I_FREQUENCY : the intermediate frequency in the data.

      SKY_FREQUENCY : the sky frequency.  This should be the line rest  fre-
        quency if the velocity is correct.

      IF1 : the frequency in the first IF frequency

      IF2 : the frequency in the second IF frequency

      IF3 : the frequency in the third IF frequency

    Parameters valid in TIME mode only:

      U_COORD,  V_COORD, RADIUS, ANGLE: referring to cartesian, or polar co-
        ordinates, in the (U,V) plane, of the baseline(s) selected  by  com-
        mand SET BASELINES.

      TIME:  universal  time  (in hours, origin determined by the first plot
        made, may be reset by PLOT /RESET).

      SCAN:  the scan number

      NUMBER:  the observation number.

      RECORD:  the record number (1 to the number of plotted points).

      HOUR_ANGLE

      DECLINATION

      RMS_PHASE:  the r.m.s.  of the  phase  of  the  average  of  the  non-
        flagged   subbands   of   the continuum correlator, in current phase
        units  (degrees  or  radians).   This  r.m.s.   phase   is  computed
        during the data compression.

      RMS_AMPLITUDE:   the  r.m.s.  of the amplitude of the  average  of the
        non-flagged  subbands  of  the  continuum  correlator,   in  current
        amplitude units  (kelvins  or  janskys).   This  r.m.s. amplitude is
        computed during the data compression.

      DELAY:  as  specified  for  specified  baseline  (differential,  A1-A2
        for baseline 12), or for the specified antenna(s).

      LO_RATE:   as  specified  for specified baseline (differential, as DE-
        LAY), or for the specified antenna(s).

      LO_PHASE:  as used for  specified  baseline   (differential,   as  DE-
        LAY), or for the specified antenna(s).

      LO1_FREQ: LO1 frequency

      LO1_REF: LO1 ref frequency

      CABLE_PHASE:  as measured for specified baseline (differential, as DE-
        LAY), or for the specified antenna(s).

      CABLE_ALTERNATE: idem for the unused reference

      GAMME:  the current range (1 or 2) of the cable phasemeter.

      TOTAL_POWER:   the  total  power   measured   for   the   given anten-
        na(s), as measured by the connected detectors.

      TOT_SCALE: scaling factor to go from cts to K for total power

      DH_ACTP[1-8]: the total power measured in the autocorrelation (NB cor-
        relator)

      DH_ANTTP: the total power measured in the warm IF cartridge

      LAMBDA, BETA, or FOCUS:  the scanning coordinates  for   pointing  and
        focussing  scans  (arc  seconds,  or millimeters), for the specified
        antenna, or the moving antenna if the given  baseline (if  only  one
        is moving).

      AZ_CORR: the azimuth collimation correction in arc seconds.

      EL_CORR: the elevation collimation correction in arc seconds.

      FOC_CORR: the Z focus correction in millimeters.

      T00 ...  T09 : general test parameters (in data headers)

      T10 ...  T29 : test parameters (antenna based) (in data headers)

      TREC:  receiver temperature for the given antenna(s).

      TSYS  :  Equivalent system temperature for  the  given  baseline (Geo-
        metrical  mean of Tsys for both antennas), or for the  given  anten-
        na(s).

      PAMB, TAMB, HUMIDITY: measured atmospheric parameters.

      WIND_AVERAGE, WIND_DIR_AV, WIND_TOP, WIND_DIR_TOP: The wind in m/s and
        the wind direction in degrees, for 5 min. averages and maxima..

      QUALITY: The observation quality as set with commands TAG or CURSOR.

      AZIMUTH, ELEVATION: Start azimuth and elevation for each scan.

      AZ_ERR, EL_ERR: The tracking errors in arc seconds.

      AZ_PH, EL_PH: The azimuth and elevation for each record (as  used  for
        phase tracking).

      PARAL_ANGLE:  Parallactic  angle (angle between the vertical direction
        and the meridian plane)

      WATER: Water content of atmosphere (as set by the programmer, or  mea-
        sured with given antenna).

      ATM_EMISSION: From the output of the atmospheric monitor (normally the
        1.3mm receiver). This is the measured radiation temperature  of  the
        atmosphere,  in  Kelvins of Rayleigh-Jeans equivalent radiation tem-
        perature.

      ATM_POWER: This is the output of the atmospheric monitor (normally the
        1.3mm receiver). It is the actual counts that appear on the monitors
        during observations.


      ATM_REFERENCE: The atmospheric emission used as a  reference  for  the
        phase correction. This is computed by the command MONITOR. The phase
        correction will be proportional to the difference between the output
        of the atmospheric monitor and this reference value.

      ATM_PHASE: The computed atmospheric phase correction.

      ATM_UNCORRPH: The phase  uncorrected from atmosphere.

      ATM_CORRPH: The phase  corrected from atmosphere.

      ATM_VALIDITY:  0  or  1 whether the phase correction has been declared
        valid or not.


      CAL_PHASE: The phase instrumental calibration curve.

      CAL_AMPLI: The amplitude instrumental calibration curve.

      AIR_MASS: The number of air masses (1/sin(elev))

      GROUND_EMIS: The ground emission in K (calibrated  total  power,  with
        sky emission subtracted).

      EMISSION:  The total power detected in emission in K (ground + sky)

      TDEWAR1, TDEWAR2, TDEWAR3: The temperatures in the 3-stage cryogenera-
        tors.

      TCABIN, TCHOP, TCOLD: The temperatures of the receiver cabin,  of  the
        ambient load, and the equivalent temperature of the cold load.

      WVRTAMB, WVRTPEL: The temperature of the  water vapor radiometer (WVR)
        ambient load and peltier cooler.

      WVRTCAL1, WVRTCAL2, WVRTCAL3 : The channel gains for the  3  frequency
        bands.

      WVRREF1,  WVRREF2,  WVRREF3 : The average counts on reference observa-
        tion

      WVRAVER1, WVRAVER2, WVRAVER3 : The average counts on current  observa-
        tion

      WVRAMB1,  WVRAMB2,  WVRAMB3  : The average counts on last ambient mea-
        surement

      WVRTREC1, WVRTREC2, WVRTREC3 : The receiver temperatures

      WVRFEFF1, WVRFEFF2, WVRFEFF3 : The coupling factors to sky

      WVRMODE : The calibration mode

      WVRH2O, WVRPATH : The precipitable water vapor and corresponding path-
        length

      WVRTSYS1, WVRTSYS2, WVRTSYS3 : The system temperatures

      WVRDPATH1, WVRDPATH1, WVRDPATH3 : The Kelvin to water vapor pathlength
        (model)

      WVRFPATH1, WVRFPATH2, WVRFPATH3 : The Kelvin to water vapor pathlength
        (empirical)

      WVRLIQ1, WVRLIQ2, WVRLIQ3 : The Kelvin to liquid water emission

      WVRDCLOUD1,  WVRDCLOUD2, WVRDCLOUD3 : The Kelvin to liquid water path-
        length (model)

      WVRTATM : The temperature of atmosphere

      WVRQUAL : The  quality code

      DH_WVR1, DH_WVR2, DH_WVR3 : counts of each WVR channel

      DH_WVRSTAT :  status word

      WVR_PHA_M : The WVR phase value (model)

      WVR_PHA_E : The WVR phase value (empirical)

      WVR_PHA_C : The WVR phase value due to Cloud (Model)

      tatm_s, tatm_i : The temperature of the atmosphere in the  signal  and
        image band

      REFC1, REFC2, REFC2: refraction coefficients.

      REFRACTION: refraction correction.

      ATTENUATION: attenuation in the warm IF cartridge

      LILEVL[01\-12]: tweak level (LSB for DSB correlator)

      LILEVU[01\-12]: tweak level (USB for DSB correlator)

      TIM[01\-04]: timing parameters

      LASER_LEVEL : optical power in the fiber optic Rx

      HIQ_ATTEN[1-2]: high-Q cable attenuation

      WIDEX_TEMP[1-4]: WIDEX unit temperatures

      INCLIX, INCLIY: station inclination (/X,/Y)

      INCLI_TEMP: inclinometer temperature


    The  available  parameters  are the same as with the SET Y command.  De-
    fault is SET X TIME.


    The /LIMITS option is used to specify fixed limits, e.g.:  "SET  X  TIME
    /LIMITS  t1  t2"  where t1 and t2 are the time limits to be used in this
    example.  The codes "*" and "=" may be used. "*" means that  the  limits
    are  automatically  adjusted  to  the  data, separately in each box; "="
    means that common limits to all boxes are computed.

    For time-like plots, the defaults are "/LIMITS * *  ".   For  frequency-
    like plots, the defaults are "/LIMITS = =".


Gildas manager 2022-01-17