AIPS HELP file for EDITA in 31DEC26
AIPS HELP file for EDITA in 31DEC26
INNAME Input UV data (name)
INCLASS Input UV data (class)
INSEQ Input UV data (seq. #)
INDISK Input UV data disk drive #
INEXT Input table type:
(TY, SY, SN, CL)
INVERS Input table file version no.
DODELAY -1.0 3.0 > 0 -> use delays/rates too
= 2 => edit MB delay only
= 3 => edit dispersion only
FREQID -1.0 Frequency ID; 0 => 1
SUBARRAY 0.0 Subarray number 0 => 1.
FLAGVER Flag table version
OUTFGVER 0.0 Output FG table version
TIMERANG Time range to include
BIF First IF to include
EIF Last IF to include
ANTENNAS Antennas to include/exclude
SOLINT 0.0 Times within SOLINT (min) are
treated as equal.
DETIME 0.0 Break interval (min)
DOHIST -10.0 1.0 Record flags in history file
DOTWO -1.0 1.0 True => do second observable
plot of main baseline
EXPERT -1.0 1.0 > 0 start in expert mode
CROWDED -1.0 2.0 = 1 => allow plots with all
polarizations and IFs
= 2 => use memory grid to
do plots
DO3COLOR -1.0 2.0 > 0 => do CROWDED with
multiple colors; =2 always
REASON Initial reason string
ANTUSE 0.0 90.0 Initial displayed antennas
BADDISK -1.0 1000.0 Disks to avoid for scratch.
EDITA
Type: Task
Use: To edit uv data by examining system temperature, SysPower, or
gain solution table data interactively. The chosen observable,
i.e,. system temperatures or the differences between the
current system temperatures and a running mean from TY tables,
power differences, power sums, power ratios (=Tsys) or
differences of these from a running mean from SY tables, or
antenna gain amplitudes, phases, delays, and rates from SN or
CL tables, for an antenna is displayed as a function of time in
an edit window. You may view the entire time range or select
more detailed time ranges interactively. Optionally, under
control of adverb DOTWO, a second observable for the same
antenna may be displayed over the same time range in a window
above the edit window. Data in the primary observable for 0 to
10 other antennas may be displayed over the same time range in
windows above these on the TV screen. This display is
controlled interactively. A menu-like control interface is
available to select the data antenna and time range to be
edited and to select various forms of editing. An "expert
mode" allows you to enter single-letter menu selections from
the keyboard (xterm) while this expert mode is enabled.
EDITA creates a Flag Command file attached to the input UV data
file. If one already exists - due to a prior power failure or
program failure - it will be used. This is a bit dangerous and
should be done only if the data selection adverbs have the values
they had when the FC file was created.
Adverbs:
INNAME.....Input UV data file (name). Standard defaults.
INCLASS....Input UV data file (class). Standard defaults.
INSEQ......Input UV data file (seq. #). 0 => highest.
INDISK.....Input UV data file disk drive #. 0 => any.
INEXT......Table type: TY (system temperature), SY (EVLA SysPower),
SN (gain solution), and CL (calibration) are supported.
The task will use the TANT columns of a TY table if they
are valid and will use the TSYS columns otherwise. FILLM
writes the TANT columns with more-or-less calibrated
antenna temperatures for data taken after May 1996. SY
tables are provide with EVLA data - at least data read
from the ASDM by obit (e.g. with BDF2AIPS). The
CalDevice (CD) table is also used to provide the Tcals.
INVERS.....Input table file version number, 0 -> current highest.
The input file is not changed, but may be sorted.
DODELAY....> 0 AND <= 1.5 => use delays and rates as well as
amplitudes and phases in the displays and editing
process (for CL and SN)
> 1.5 => use multi-band delays (only) in the displays and
editing process (for CL and SN, not usually for
EVLA data)
NOTE: MB delays are used by astrometric solving
tasks not in AIPS. They are written into SN
tables by FRING when APARM(5)=1 but do not
differ from the single-band delays written into
all IFs. FRING with APARM(5)=2 does a separate
solution for MB and SB delays and different
values will appear in the columns then. MBDLY
will take phases from FRING with APARM(5)=0
(separate SB delays) and fit an MB delay which
it adds to the SN table.
> 2.5 => use dispersion only in the displays and editing
process. Dispersion may be computed by KRING or
FRING and is most important at the lowest
frequencies.
<= 0 => do not display or edit upon delays and rates
FREQID.....Frequency ID to edit. 0 => 1.
SUBARRAY...Subarray number to edit. 0 => 1.
FLAGVER....specifies the version of the flagging table to be applied
to the data on input. 0 -> highest, -1 -> none.
If the specified input flag table already exists, it is
applied to the table data after they are read but before
they are displayed. Any points flagged thereby will not be
displayed. At the end, the flags are written into a flag
table for both single-source and multi-source data sets.
OUTFGVER...Flag table version to be used on output for both single-
and multi-source data sets. If OUTFGVER is <= 0 or
greater than FGmax (the previously highest FG version
number), then a new FG table will be created for the new
flags with version FGmax+1. This new table will also
contain the flags applied on input (if any) from FG
version FLAGVER. If OUTFGVER specifies a pre-existing FG
version, then the input flags are not copied even if
OUTFGVER and FLAGVER are not equal.
TIMERANG...Time range of the data to be edited. In order:
Start day, hour, min. sec, end day, hour, min. sec. Days
are relative to the reference date.
BIF........The lowest numbered IF to include. 0 => 1.
EIF........The highest numbered IF to include. 0 =>highest.
Note: not all data sets will have IFs.
ANTENNAS...A list of antenna numbers to include. 0 => all.
SOLINT.....Samples within SOLINT (minutes) of the first sample in each
time interval will be considered part of that interval,
i.e., times with SOLINT of each other are treated as equal.
0 => 1/6000 (i.e. 0.01 sec) which is fine in most cases.
DETIME.....Samples more than DETIME (minutes) from the previous will
be considered to imply a break in the time sequence and
will be assigned a time interval after a gap of intervals
or 2 intervals if the sample is more than 2 * DETIME later.
< SOLINT => max (2, 5*SOLINT) minutes. DETIME is used as
the initial estimate of the scan length as well - this may
be changed interactively.
DOHIST.....> 0 => record task execution and flagging info in the
history file (this can be a lot!). <= 0.0 means to omit
the flagging info and <= -9.5 means to omit the execution
information as well.
DOTWO......> 0 (true) means to do the secondary plot of a second
observable (Tsys diff, amplitude, phase, etc) from the
primary antenna. <= 0 means to plot only the primary
observable used for the editing. True is recommended.
EXPERT.....> 0 => the task begins in "expert mode" in which commands
are entered with single characters at the keyboard rather
than by TV menu selection. You can switch in and out of
expert mode interactively after the task begins without
regard for the value of EXPERT. If the task begins in
EXPERT mode on CL or SN tables, it starts with the
amplitudes plotted from 0 to maximum, phases from -180 to
180, delays from -1000 to 1000 ns and rates from -1000 to
1000 mHz. With all tables in EXPERT mode, it starts with
the ALL IF and ALL POL flags = .NOT.CROWDED rather than
false. These choices may be changed interactively.
CROWDED....If = 1, the task will be allowed to plot and edit all IFs
and/or all polarizations at once. Otherwise, only one
polarization and one IF are plotted at a time and much of
the editing is based only on the values of that
polarization/IF.
If = 2, the plots will be constructed in dynamic memory
and then loaded as images rather than being drawn directly
to the TV. Use this if there are a lot of times and/or
IFs being over-plotted to save time.
DO3COLOR...If CROWDED > 0 and DO3COLOR > 0, use 3 grey-scale image
planes to plot the data in colors so as to differentiate
between IFs and polarizations. When one IF and
polarization is plotted, the graphics plane is used
unless DO3COLOR > 1.5.
REASON.....The initial reason for flagging recorded in the FG table.
' ' => task name, date and time. This can be changed
interactively.
ANTUSE.....Lists the antennas to appear in the initial display:
antenna ANTUSE(1) is the initial edit antenna and
ANTUSE(2) through ANTUSE(11) are the comparison antennas.
The default is equivalent to ANTUSE=1,2,3 (or whatever
are the 3 lowest numbered antennas).
BADDISK....This array contains the numbers of disks on which it is
desired that scratch files not be located.
EDITA is a TV graphic editor for uv data using system temperature
(TY), EVLA SysPower (SY), gain solution (SN) and calibration (CL)
tables. It works with the XAS-TV display graphics (and image) planes
to allow you to flag uv data based on values in the selected table.
EDITA attempts to read the entire table into the pseudo-AP memory
when if starts up. If it cannot fit all the data, it attempts to read
just one IF at a time. In that case, when you switch IFs, EDITA reads
in the next IF. EDITA will tell you as it starts whether "All data will
reside in memory" or "Will do only one IF in memory at a time". The
SWITCH ALL IF option will not appear in the latter case.
There are 5 parts to EDITA's display:
(1) A menu of operations displayed in two columns, one each at the left
and right sides of the screen. When the menu is displayed, move the
cursor to the desired item and press buttons A, B, or C. To get on-line
help in the message window about a given option, move the cursor to the
desired menu item and press button D.
(2) A plot at the bottom of the screen in a bright color (usually) of
the data which may be actively edited at present. It is of the chosen
type for the selected antenna, polarization(s), and IF(s) and is
limited in time range by the current frame (which can be all or a
portion of the total time range). Flagged data are shown in a
different color. The time range of the frame may be made small to
expand the time axis, but may also be made so large as to cause
serious crowding of the plotted data points. (Increase your XAS
window width to increase the plot scale.)
(3) A plot above the edit area plot in the same bright color of the data
from the selected antenna, polarization(s), and IF(s). This plot is
in a second observable (e.g. if amplitude is in the edit plot, phase
is often the second observable). For TY tables the two observables
are Tsys and the difference between Tsys and a running mean of Tsys
(scaled by that mean so that everything is on a similar scale). Data
in this second area may not be used for editing but should be helpful
in choosing which data to delete in the edit area. Flagged data are
shown in a different color. This plot may be suppressed by adverb
DOTWO.
(4) 0-10 plots of data of the current data type, polarization(s), and
IF(s) for a list of 0-10 other antennas are shown above the second
plot. They are shown for comparison using another color, while
flagged data are shown in a different color.
(5) Several text areas also appear including (a) the start and end times
for the current frame's time axis, (b) the selected data type, IF, and
polarization at the bottom of the screen, (c) the antenna shown in each
plot at the top right of each plot, (d) the current all-IF,
all-polarization, and all-antenna flags, (e) the y-axis tick values on
each of the frame plots, and (f) while interactively setting time and/or
value ranges, the time and/or value to which you are currently pointing
and the associated source name.
You may change the size of the XAS window at any time. EDITA will
not allow it to become too small, but will adjust its display for all
reasonable sizes.
The left-hand menu can contain
| FLAG TIME | To delete one time at a time.
| FLAG TIME RANGE | To delete one or more time ranges.
| FLAG BELOW | To delete all displayed times with data below a
cutoff value.
| FLAG ABOVE | To delete all displayed times with data above a
cutoff value.
| FLAG AREA | To delete one or more areas in the data-value -
time plane.
| FLAG POINT | To delete one sample at a time using both
horizontal and vertical cursor position.
| FLAG QUICKLY | To delete samples using only mouse clicks
| ENTER WT RNG | (SN) To select the display range for solution
weight plots. Use 0 -1 for 0 to antenna
maximum and 0 0 for min to max.
| ENTER AMPL RNG | (SN) To select the display range for amplitude
plots
| ENTER PHASE RNG | (SN) To select the display range for phase plots.
| ENTER DELAY RNG | (SN) To select the display range for delay plots.
| ENTER RATE RNG | (SN) To select the display range for rate plots.
| ENTER TSYS RNG | (TY) To select the display range for system
temperature plots. Use 0 -1 for 0 to antenna
maximum and 0 0 for min to max.
| ENTER TDIF RNG | (TY) To select the display range for plots of the
difference between Tsys and its running average
divided by the average.
| ENTER PDIF RNG | (SY) To select the display range for power
difference plots. Use 0 -1 for 0 to antenna
maximum and 0 0 for min to max.
| ENTER PSUM RNG | (SY) To select the display range for power sum
plots. Use 0 -1 for 0 to antenna maximum and
0 0 for min to max.
| ENTER PGAIN RNG | (SY) To select the display range for PostGain
plots.
| ENTER TSYS RNG | (SY) To select the display range for power sum
divided by power difference time Tcal (=Tsys)
plots. Use 0 -1 for 0 to antenna maximum and
0 0 for min to max.
| ENTER PD/P RNG | (SY) To select the display range for plots of the
difference between Pdif and its running average
divided by the average.
| ENTER PS/P RNG | (SY) To select the display range for plots of the
difference between Psum and its running average
divided by the average.
| ENTER PG/P RNG | (SY) To select the display range for plots of the
difference between Pgain and its running average
divided by the average.
| ENTER TS/T RNG | (SY) To select the display range for plots of the
difference between Psum/Pdif/2*Tcal (= Tsys)
and its running average divided by the average.
| SET SCAN LENGTH | (TY) To set the averaging time used to determine
the running average in seconds.
| LIST FLAGS | To list all flags now in the Flag Command table.
| UNDO FLAGS | To undo one of the flag operations in the FC table
| REDO FLAGS | To reapply all remaining flags after one or more
have been undone (see note below)
| SET REASON | To set the 24-character "reason" string to be put
in the uv-data flag table
| USE EXPERT MODE | To control the task from the keyboard instead of
the menu.
| HOLD TV LOAD | To stop updating the TV display with every change
of parameter; change several, then select
| DO TV LOAD | To update the TV display now and with each change
of display parameter.
| REPLOT | To do the current plot over again, recomputing
the differences from the running mean if
appropriate.
| CHAR MULT | To change character size (only if character scale
is, or is by default, larger than 1)
| EXIT | To exit EDITA, writing the data back to the output
SN table and moving the FC table to a uv-data FG
table
| ABORT | To exit EDITA, deleting the output SN table and the
FC table
The right-hand menu can contain
| NEXT POL/IF | To switch to viewing the next correlator,
switching to the other polarization and, if
needed, incrementing the IF.
| SWITCH POLARIZ | To switch to viewing and editing the other
polarization (can cycle through all).
| SWITCH ALL POL | To switch functions from applying to one
polarization to applying to both polarizations
or vice versa.
| ENTER IF | To select which IF is viewed and edited. (SN) This
can cause the current IF to be written to disk
if all IFs did not fit in memory. 0 -> all.
| SWITCH ALL IF | To switch functions from applying to one IF, to
applying to a range of IFs, or to applying to
all IFs (in sequence).
| SWITCH ALL TIME | To switch FLAG ABOVE and FLAG BELOW between all
times and the time range of the frame
| SWITCH ALL SOURC| To switch between flagging the current source and
all sources.
| SWITCH ALL ANT | To switch functions from applying to one antenna to
applying to all antennas or vice versa.
| ENTER ANTENNA | To select the antenna to be displayed at the top
and in the edit area and to be edited.
| ENTER OTHER ANT | To select up to 10 other antennas to be displayed;
enter only the ones you want including none
| NEXT ANTENNA | To select an antenna one higher than the currently
selected antenna
| PLOT ALL TIMES | To display and edit data for all times.
| SELECT FRAME | To select a window into the current data
interactively.
| NEXT FRAME | To select the next time range window.
| PREVIOUS FRAME | To select the previous time range window.
| TV ZOOM | To alter the display zoom used while in the flag
functions.
| OFF ZOOM | To turn off any zooming.
| SHOW TSYS | (TY) To display and edit system temperatures
| SHOW TSYS/-1 | (TY) To display and edit the differences between
system temperature and its running mean
| SHOW PDIF | (SY) To display and edit power differences
(Pon-Poff)
| SHOW PSUM | (SY) To display and edit power sums (Pon+Poff)
| SHOW PGAIN | (SY) To display and edit power post gains (Pgain)
| SHOW TSYS | (SY) To display and edit Psum/Pdif/2*Tcal = Tsys
| SHOW PDIF/-1 | (SY) To display and edit the differences between
power difference and its running mean
| SHOW PSUM/
-1 | (SY) To display and edit the differences between
power sum and its running mean
| SHOW PGAIN/
-1 |(SY) To display and edit the differences between
Pgain and its running mean
| SHOW TSYS/-1 | (SY) To display and edit the differences between
Psum/Pdif/2*Tcal = Tsys and its running mean
| SHOW ALSO PDIF | (SY) To display power differences (Pon-Poff) in
the secondary window.
| SHOW ALSO PSUM | (SY) To display power sums (Pon+Poff) in the
secondary window.
| SHOW ALSO PGAIN | (SY) To display power post gains in the secondary
window.
| SHOW ALSO TSYS | (SY) To display Psum/Pdif/2*Tcal = Tsys in the
secondary window.
| SHOW ALSO DPDIF | (SY) To display the difference between the power
difference and its running mean in the
secondary window.
| SHOW ALSO DPSUM | (SY) To display the difference between the power
sum and its running mean in the secondary
window.
| SHOW ALSO DPGAIN |(SY) To display the difference between the power
post gain and its running mean in the
secondary window.
| SHOW ALSO DTSYS | (SY) To display the difference between Psum/Pdif/2
* Tcal = Tsys and its running mean in the
secondary window.
| SHOW WEIGHT | (SN) To display and edit solution weights
| SHOW AMPLITUDE | (SN) To display and edit amplitudes.
| SHOW PHASE | (SN) To display and edit phases.
| SHOW DELAY | (SN) To display and edit delays.
| SHOW RATE | (SN) To display and edit rates.
| SHOW ALSO WT | (SN) To display solution weights in the secondary
window.
| SHOW ALSO AMPL | (SN) To display amplitudes in the secondary window.
| SHOW ALSO PHASE | (SN) To display phases in the secondary window.
| SHOW ALSO DELAY | (SN) To display delayss in the secondary window.
| SHOW ALSO RATE | (SN) To display rates in the secondary window.
The menus will not show all of these options every time. The HOLD
TV LOAD option is shown until invoked, and then is replaced with the DO
TV LOAD. When that is invoked, the HOLD TV LOAD option reappears. The
DELAY and RATE options appear only if the DODELAY adverb was true. The
SWITCH POLARIZ and SWITCH ALL POL options appear only if there are two
polarizations in the TY or SN/CL table. The ENTER IF option appears
only if there is more than one IF in the table and the SWITCH ALL IF
option appears only if there is more than one IF and all IFs fit in the
program memory. The options marked (SN) appear only when SN/CL tables
are used and those marked with (TY) or (SY) appear only when TY or SY
tables are used. The only SHOW and SHOW ALSO options to appear are
for those not already displayed.
With TY editing, plots of the difference between the system
temperature and its running mean divided by the running mean can be
particularly sensitive to short term disturbances while ignoring slow
changes due to gradually changing elevation and the like. The running
mean is not carried between sources and, as a result, is not normally
carried across scan boundaries. Similar comments apply to SY editing
with the Pdif and Psum values.
Note that value-dependent flagging (FLAG BELOW, ABOVE, AREA) use
the values currently plotted to make a list of value-independent flag
commands (i.e., a single time for the specified antennas, IFs,
polarizations, etc.). When a value-dependent FLAG operation is undone
(UNDO FLAGS) or redone (REDO FLAGS), it is these value-independent flags
which are undone or redone. You may have to undo more commands and then
repeat FLAG commands to get the results you could have gotten by doing
the now desired value-dependent command in the first place. You need
also to be careful with the SWITCH ALL ANT setting with these
value-dependent commands. If one antenna is set, then the commands only
apply to the current antenna. If all antennas is set, the commands
apply to all antennas. The first two set a clip level, below or above
which data are deleted, based on the value of the observable in each
antenna independently. The FLAG AREA command, however, only looks at
the values of the observable in the main edit antenna and flags those
samples from all applicable antennas.
Be careful when choosing EXIT versus ABORT. The former applies the
flag commands to a flag table attached to the input uv data, the latter
causes the flag commands to disappear without a trace. After EXIT, of
course, one may use, edit, or ignore the output flag (FG) table. For
single-source files, it may be necessary to run SPLIT to apply the FG
table to the data since only some tasks know how to apply FG tables
(those with FLAGVER as an adverb).
The colors used by EDITA are those of the various graphics planes
when it begins to run. You may change them with the AIPS verb GWRITE to
more desirable colors. The planes are:
Plane Default RGB Use
1 1.00 1.00 0.00 Main editing and secondary windows
2 0.06 1.00 0.00 Comparison antenna data windows
3 1.00 0.67 1.00 Menu highlight
4 0.00 1.00 1.00 Edit and frame window boundaries
5 1.00 0.18 0.18 Flagged data in all windows
6 0.60 0.60 1.00 Menu foreground
7 1.00 0.80 0.40 unused
You may wish to change the colors to ones that you can see better.
When CROWDED and DO3COLOR are invoked together, TV channels 14-16 are
used for a 3-color display to help you see which IF/polarization is
which. The colors range from red to blue starting with IF BIF,
polarization 1, then polarization 2, then IF 2 polarization 1, and so
on. When you select a single IF and polarization, graphics plane 1 is
used unless you set DO3COLOR > 1.5. In that case each correlation is
plotted in its unique color whether in a single display or a crowded
one. When displaying one IF and two polarizations, the colors are
chosen so that polarization 1 appears in a red/orange color and
polarization 2 in a green/blue color.
In "expert" mode, you are prompted with a set of 4-character codes.
You type in the letter within that code that is shown in upper case
(left-justified with a carriage return) to get the desired function.
The expert functions allowed are
Code Prompt Full menu OP name
T Time FLAG TIME
R Rang FLAG TIME RANGE
B Belo FLAG BELOW
A Abov FLAG ABOVE
E arEa FLAG AREA
O pOin FLAG POINT
Q Quik FLAG QUICKLY
L List LIST FLAGS
U Undo UNDO FLAGS
C nCor NEXT POL/IF
N Nant NEXT ANTENNA
F Fram SELECT FRAME
M aMpl SHOW AMPLITUDE (SN)
P Phas SHOW PHASE (SN)
D Dely SHOW DELAY (SN)
S Srat SHOW RATE (SN)
S tSys SHOW TSYS (TY)
D tDif SHOW TSYS - (TY)
D tDif SHOW PDIF (SY)
S pSum SHOW PSUM (SY)
Y tsYs SHOW TSYS (SY)
X eXit EXIT EXPERT MODE
H Help THIS HELP LIST
although some may be suppressed depending on what is currently
displayed.