AIPS HELP file for PEEK in 31DEC24
As of Thu Apr 18 19:38:49 2024
PEEK: Task to fit pointing model function to VLA pointing data
INPUTS
INNAME data (name) for plot file
INCLASS data (class).
INSEQ 0.0 9999.0 data (seq. #). 0 => high
INDISK Disk unit #. 0 => any
ANTENNAS Antennas to fit
TIMERANG Time range to fit
APARM Controls
(1) start MJAD
(2) end MJAD
(3,4) Elevation range (deg)
(5) amplitude limit
(6) wind speed limit
(7,8) beamwidth range
(9) filter change value
(10) filter N * sigma
BAND Restrict to this freq band
FPARM FPARM(i) > 0 => fit
(1) Tilt
(2) Azzero
(3) Elzero
(4) Colima
(5) Sag
(6) Az3
(7) Azcntr
(8) Elcntr
(9) Axsprp
(10) Az2
(11) Refrac
(12) tilt atached to ant
(16) suppress gnuplot file
(17) suppress ant.dat
(18) suppress .changes file
(19) suppress filtered
changes file
PRTLEV 0.0 3.0 Print level - 0 normal
ASDMFILE
file name of data
DOPLOT > 0 make AIPS plots
DOTV -1.0 1.0 > 0 -> plot to TV
XYRATIO X/y plot size ratio
DPARM (1) Symbol type: measured
(2) Symbol type: residual
(3) Symbol factor: measured
(4) Symbol factor: residual
(5) Graphics plane: measured
(6) Graphics plane: residual
HELP SECTION
PEEK
Type: Task
Use: Fits pointing model to VLA pointing data.
Adverbs:
INNAME.....file name to hold plots (name). Standard defaults.
INCLASS....file name (class). Standard defaults.
INSEQ......file name (seq. #). 0 => highest.
INDISK.....Disk unit #. 0 => any.
TIMERANG...Time range of the data to be fit. In order:
Start day, hour, min. sec, End day, hour, min. sec
Days relative to reference date. all 0 -> 0,24hour
ANTENNAS...A list of the antennas to fit.
APARM......Control parameters
(1) start MJAD to include 0 -> 0
(2) end MJAD to include 0 -> large
(3,4) Limit to elevation range (min,max)
0 -> 7, 122 (degrees)
(5) Minimum amplitude 0 => 0.01
(6) Maximum wind speed 0 -> 5 m/sec
(7,8) Limit to normalized beamwidth range (min,max)
0 -> 0.95,1.15
(9) Filtered change file gets a line when the absolute
value of the change > APARM(9) (0 -> 0.1)
(10) and the abs (change) * APARM(10) * sigma
(parameter) (0 -> 3.0)
BAND.......Restrict to band code ' ' => 'X'
Allowed codes P, L, S, C, X, U, K, A, Q
FPARM......If FPARM(i) > 0, then fit for the parameter
(1) Tilt
(2) Azzero
(3) Elzero
(4) Colima
(5) Sag
(6) Az3
(7) Azcntr
(8) Elcntr
(9) Axsprp
(10) Az2
(11) Refrac
All 0 => fit 1, 2, 3, 4, 11
(12) > 0 -> attach tilt to antenna, else to pad
(16) > 0 -> suppress output of gnuplot file
(gnuplot made obsolete by AIPS plots)
(17) > 0 -> suppress output of ant.dat files
If (16) <= 0, (17) is forced to 0
(18) > 0 -> suppress output of changes file
May only want to keep the filtered
changes file.
(19) > 0 -> suppress output of filtered changes file
PRTLEV.....Print level used for debugging problems. 0 normal.
ASDMFILE...Use both ASDMF(1) and ASDMF(2) to specify the full path
to the .PNT file (but leave off the .PNT which the task
will append). This could be the same values for ASDMF as
used by BDFLIST and BDF2AIPS if you put the .PNT file in
the same directory as the top directory of the SDM/BDF
files.
DOPLOT.....> 0 => make AIPS plot files of the pointing errors before
and after fit.
DOTV.......> 0 => make the plot(s) on the TV, else make plot files.
XYRATIO....Scale the X axis longer than the Y by XYRATIO.
If DOTV > 0, 0 -> fit to the TV window
If DOTV <= 0, 0 -> 1.
DPARM......(1) Symbol type for measured Az and El errors
Default is 2, the choices are
1: Plus sign 13: Star of David
2: Cross (X) 14: Seven-pointed star
3: Circle 15: Eight-pointed star
4: Box 16: Nine-pointed star
5: Triangle 17: Ten-pointed star
6: Diamond 18: 11-pointed star
7: Pentagon 19: 12-pointed star
8: Hexagon 20: 13-pointed star
9: Septagon 21: 14-pointed star
10: Octagon 22: Plus (+) with gap
11: Nine-gon 23: Cross (X) with gap
12: Five pointed star 24: Vertical line
(2) Symbol type for residual Az and El (measured - fit)
Default is 3 from choices above
(3) Scaling factor for measured Az and El points:
Default = 1
(4) Scaling factor for residual Az and El points:
Default = 1
(5) Graphics channel for measured Az and El errors.
Default is 2, choices are 1 yellow, 2 green, 3 pink,
and 4 cyan
(6) Graphics channel for residual Az and El;
default is 3.
EXPLAIN SECTION