AIPS HELP file for SNRMS in 31DEC24
As of Mon Apr 29 4:20:53 2024
SNRMS: print selected contents of an SN, SY, TY, PC, or CL file
INPUTS
INNAME UV data (name).
INCLASS UV data (class).
INSEQ 0.0 9999.0 UV data (seq. #). 0 => high
INDISK 0.0 9.0 Disk unit #. 0 => any
INEXT Input 'SN','SY','TY','PC',
or 'CL'
INVERS Input table file version no.
SOURCES Source list
QUAL -10.0 Source qualifier -1=>all
TIMERANG Time range to print
STOKES Stokes type to print: R, L,
RR, LL, RRLL, DIFF, RATO
V, H, VV, HH, VVHH
SELBAND Bandwidth to print (kHz)
SELFREQ Frequency to print (MHz)
FREQID Freq. ID to print, -1=>all
SUBARRAY -1.0 Limit to subarray; 0 -> 1
-1 -> all
BIF 0.0 100.0 First IF to print, 0=>1.
EIF 0.0 100.0 Last IF to print 0 -> highest
ANTENNAS Antennas to print 0=>all
OPTYPE Data to be printed:
'PHAS','AMP ','DELA','RATE',
'TSYS','SUM ','DOPL','SNR ',
'MDEL','TANT','ATM ','GEO ',
'CCAL','DDLY','REAL','IMAG',
'IFR ','PDIF','PSUM','PGN ',
'PON ','POFF','PSYS','PDGN',
'PSGN','POWR','PODB','RPHS'
'RDLY', ' '=phase
REFANT New reference antenna for
'RPHS', 'RDLY'
BCOUNT If INEXT ='PC' and OPTYPE =
'AMP' or 'PHAS, BCOUNT
specifies the phase cal tone
number to be printed. 0->1.
CUTOFF Table weights <= CUTOFF will
not be printed, flagged data
are not printed.
DOCRT -10.0 150.0 > 0 -> use the terminal,
else use the line printer
> 72 => terminal width
> 132 => TeX format
< -3 => TeX format
OUTPRINT
Printer disk file to save
HELP SECTION
SNRMS
Type: Task
Use: Prints max, min, mean, rms, median, mad scaled to an rms,
number blanks, and antenna of selected calibration data from a
specified SN, SY, TY, PC or CL table.
Adverbs:
INNAME.....UV file name (name). Standard defaults.
INCLASS....UV file name (class). Standard defaults.
INSEQ......UV file name (seq. #). 0 => highest.
INDISK.....Disk unit #. 0 => any.
INEXT......'SN','TY, 'PC', 'SY', or 'CL' table to be examined
INVERS.....Version number of table to print, 0=>highest no.
SOURCES....Source list. '*' = all; a "-" before a source name means
all except ANY source named.
QUAL.......Only sources with a source qualifier number in the SU table
matching QUAL will be used if QUAL is not -1.
TIMERANG...Time range of the data to be printed. In order: Start day,
hour, min. sec, end day, hour, min. sec. Days relative to
reference date. If a start and stop time are given and
the XAXIS is 1 (time), then all prints will be from the
given start time to the given stop time. Otherwise, the
X-axis is printed over the range of X values found in the
data. All prints in a given execution will be on the same
X scale in any case.
STOKES.....The desired Stokes type of the displayed data:
'R' = RCP, 'L' = LCP, 'RL' or 'RRLL' both RCP and LCP
'V' = VLP, 'H' = HLP, 'VH' or 'VVHH' both VLP and HLP
'DIFF' = vector difference between RCP and LCP or between
VLP and HLP. Thus, if OPTYPE='AMP', the result will
not be zero even when both polarizations have the
same amplitude if the phases differ.
'RATO' = ratio between RCP and LCP or VLP and HLP - done
for amplitudes, system and antenna temperatures, and
SNRs only.
SELBAND....Bandwidth of data to be selected. If more than one IF is
present SELBAND is the width of the first IF required.
Units = kHz.
SELFREQ....Frequency of data to be selected. If more than one IF is
present SELFREQ is the frequency of the first IF required.
Units = MHz.
FREQID.....Frequency identifier to select (you may determine which is
applicable from the OPTYPE='SCAN' listing produced by
LISTR). If either SELBAND or SELFREQ are set, their values
overide that of FREQID. However, setting SELBAND and
SELFREQ may result in an ambiguity. In that case, the task
will request that you use FREQID. -1 => all, 0 => first
SUBARRAY...Limit display to specific subarray. -1 -> all, 0 -> 1.
BIF........First IF IF to print
EIF........Last IF to print.
If OPCODE = 'IFDF'/'IFRA' will print difference/ratio of
specified quantity between BIF and EIF.
ANTENNAS...A list of the antennas to be printed. All 0 => all. If any
number is negative then all antennas listed are NOT to be
printed and all others are.
OPTYPE.....Data to be printed:
1. 'PHAS' = phase,
2. 'AMP ' = amplitude,
3. 'DELA' = singleband delay (SN & CL)
4. 'RATE' = rate (SN, CL & PC)
5. 'TSYS' = sys. temp. (TY) (for VLA is nominal
sensitivity)
6. 'SUM ' = all ampl. and all phases on a single print.
PIXRANGE controls amplitude scaling and
phases are auto scaled.
7. 'DOPL' = doppler offset (CL)
8. 'SNR' = signal/noise (SN & CL)
9. 'MDEL' = multiband delay (SN & CL)
10. 'TANT' = ant. temp. (TY) (for VLA either back- or
front-end system temperature)
11. 'ATM' = atm. delay (CL)
12. 'GEO' = geometric delay (CL)
13. 'CCAL' = cable cal (PC)
14. 'DDLY' = dispersive delay (SN & CL)
15. 'REAL' = real part
16. 'IMAG' = imag part
17. 'IFR ' = Ionospheric Faraday rotation (affects pol
cal) (SN & CL)
18. 'PDIF' = EVLA Gb * (Pon - Poff) (SY)
19. 'PSUM' = EVLA Gb * (Pon + Poff) (SY)
20. 'PGN ' = EVLA post sync-detector gain = Gb (SY)
21. 'PON ' = EVLA Pon (noise tube on) (SY)
22. 'POFF' = EVLA Poff (noise tube off) (SY)
Note that PON and POFF give numbers smaller
than PDIF and PSUM by the factor Gb which
is, by default, 512 and usually ranges in
the 400's when it has been set.
23. 'PSYS' = EVLA PSUM/PDIF/2 * Tcal (=Tsys) (SY)
uses values from the CD table
24 'PDGN' = EVLA Pdif / (4096 * Pgain * Pgain)
25 'PSGN' = EVLA Psum / (4096 * Pgain * Pgain)
26. 'POWR' = (1/Gain amp)^2
27. 'PODB' = Log10 (1/Gain amp)^2
' ' => 'PHAS'
'RPHS' = print phase re-referenced to REFANT
'RDLY' = print delay re-referenced to REFANT
. 'MULT' => print multiple types as listed in APARM
using the type numbers given above.
BCOUNT.....If INEXT ='PC', and OPTYPE = 'AMP' or 'PHAS' then BCOUNT
specifies the phase cal tone number to be printed. 0 -> 1.
CUTOFF.....If >= 0, the task will examine the weight column of the
table and if the weight <= CUTOFF, the task will not print
that sample. If = 0, will print all good points; flagged
data are not printed. CUTOFF is ignored for TY and PC
tables and OPTYPEs MDEL, ATM, GEO, and CCAL.
DOCRT......False (<= 0) use the line printer if OUTPRINT = ' '
else write named OUTPRINT file only.
When OUTPRINT is not blank, DOCRT=-2 suppresses the
page-feed character on page headers and DOCRT=-3
suppresses page headers and most other header
information. When OUTPRINT is blank, the line
printer will be used. UV PRT now counts the lines
to be printed before printing any and asks for
permission to continue if the count > 500.
True (> 0) use the terminal interactively. The task will
use the actual terminal width as a display limit
unless 72 < DOCRT < width. In that case, the display
limit will be DOCRT characters.
> 132 => write the output as a TeX table input (i.e. with
& between columns).
< -3 => write output as TeX table form
OUTPRINT...Disk file name in which to save the line printer output.
' ' => use scratch and print immediately for interactive
jobs - batch jobs use OUTPRINT = 'PRTFIL:BATCHjjj.nnn'
(jjj= job #, nnn = user #). When OUTPRINT is not blank,
multiple outputs are concatenated, and the file is not
actually printed.
EXPLAIN SECTION