; CLCORPRM
;---------------------------------------------------------------
;! Parameter adverb array for task CLCOR
;# ADVERB CALIBRATION
;-----------------------------------------------------------------------
;; Copyright (C) 1995
;; Associated Universities, Inc. Washington DC, USA.
;;
;; This program is free software; you can redistribute it and/or
;; modify it under the terms of the GNU General Public License as
;; published by the Free Software Foundation; either version 2 of
;; the License, or (at your option) any later version.
;;
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public
;; License along with this program; if not, write to the Free
;; Software Foundation, Inc., 675 Massachusetts Ave, Cambridge,
;; MA 02139, USA.
;;
;; Correspondence concerning AIPS should be addressed as follows:
;; Internet email: aipsmail@nrao.edu.
;; Postal address: AIPS Project Office
;; National Radio Astronomy Observatory
;; 520 Edgemont Road
;; Charlottesville, VA 22903-2475 USA
;-----------------------------------------------------------------------
;---------------------------------------------------------------
CLCORPRM LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC
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CLCORPRM
Type: Adverb (Real(20))
Use: The task specific parameters for CLCOR. The details
depend on the OPCODE selected.
Null value: Usually 0.
Tasks:
CLCOR Makes a number of possible correstions to a CL table.
Contents are given as a function of the value of
OPCODE.
'POLR' => Modify Right-Left phase difference using
phases in CLCORPRM (deg); up to 20 IFs
may be processed at a time.
'PHAS' => Rotate phase of residual gain by
CLCORPRM(1) degrees.
CLCORPRM(2) = rate of change of phase
(degrees/day)
CLCORPRM(3) - (6) = day, hr, min, sec at
which the "zero" phase (CLCORPRM(1)) is
specified.
'OPAC' => apply atmospheric opacity amplitude
corrections using zenith opacity of
CLCORPRM(1) nepers.
'ADEL' => Correct phases, delays and rates for
neutral atmospheric delay.
CLCORPRM(1) = total pressure (mbars) at
station, NOT at sea level.
CLCORPRM(2) = partial pressure of water.
CLCORPRM(3) = Temperature (C)
CLCORPRM(4) = Tropospheric lapse rate
(K/km) (should be negative)
CLCORPRM(5) = Height of tropopause (km)
CLCORPRM(6) = Scale height of water
vapor (km).
'GAIN' => Correct using polynominal gain curve for
antenna gain as a function of the zenith
angle (ZA) in degrees.
correction = CLCORPRM(1) +
ZA * CLCORPRM(2) +
ZA * ZA * CLCORPRM(3) ...
'CLOC' => Correct residual delay and model parms
for the effects of a linear clock drift
at a particular antenna.
CLCORPRM(1) = rate of change of station
clock (nanosec/day)
CLCORPRM(2) = clock value at the "zero"
time specified by CLCORPRM(3)-(6)
(nanosec)
CLCORPRM(3) - (6) = day, hr, min, sec at
which the "zero" clock (CLCORPRM(2)) is
specified.
CLCORPRM(7) : correction has three modes,
if = 0 then the clock drift is added
as a small correction and CLCORPRM(2)
is ignored.
if = 1 then the total correction set
by the CLCORPRMS is added.
if = 2 then the values present in the
CL table are replaced by those defined
by CLCORPRM(1)-CLCORPRM(6).
'PANG' => Add or remove parallactic angle
corrections from CL table entries.
CLCORPRM(1) > 0 => Add corrections
CLCORPRM(1) =< 0 => Remove corrections
'PONT' => Correct for predictable pointing offset
of an antenna. CLCORPRM(1) is the linear
rate of change of antenna gain as the
pointing drifts.
'IONS' => Make ionispheric Faraday rotation
corrections using one of several models.
CLCORPRM(1) = Model type:
1 = Chiu model, CLCORPRM(3) = Sunspot no.
'ANTP' => Correct antenna position; corrections are
values to be added to the old positions
in meters.
1 = "X" correction.
2 = "Y" correction.
3 = "X" correction.
4 .GE. 1 => Left handed coordinates.
'PCAL' => MkIII manual phase cal; replace the gain
correction in the CL table with unit
vectors with phases given in CLCORPRM.
CLCORPRM(1) corresponds to BIF etc.
Phases are given in degrees.
'SBDL' => Add a delay to the IF residual delays.
Values given in CLCORPRM correspond to
IFs BIF, BIF+1,... EIF in nanosec.
Also modifies phase.
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