AIPS HELP file for TBIN in 31DEC22
As of Tue Mar 21 17:10:30 2023
TBIN: Task to Read AIPS tables from text files.
OUTNAME Image name (name)
OUTCLASS Image name (class)
OUTSEQ 0.0 9999.0 Image name (seq. #)
OUTDISK 0.0 9.0 Disk drive #
INTEXT External text file name.
BCOUNT 0.0 Begin Table record to Read
ECOUNT 0.0 End Table record to Read
Use: TBIN reads an AIPS table from an external text file. It needs
to be in the format prepared by TBOUT (or a reasonable
facsimile thereof). A new version of the table is always
OUTNAME.....Image name (name). Standard defaults.
OUTCLASS....Image name (class). Standard defaults.
OUTSEQ......Image name (seq. #). 0 => highest.
OUTDISK.....Disk drive # of image. 0 => any.
INTEXT......External text file name.
BCOUNT......First table record to read. 0 -> 1.
ECOUNT......Last table record to read. 0 -> 100000000
DOCUMENTOR: G. I. Langston and W. D. Cotton, NRAO.
RELATED PROGRAMS: PRTAB, TACOP, TABED and other tables routines
The purpose of this task and its twin TBOUT is to provide a way
to export AIPS tables outside of the AIPS system and to introduce data
from external sources into an AIPS table. The means of exchange is
via a text file which contains first a FITS-like header section
describing the file (See Going AIPS chapter on FITS files) followed by
a table listing.
One must supply the name of the external file via the AIPS
adverb INTEXT. Examples:
where MYAREA is an environment variable set before
percentsetenv MYAREA /mnt/fschwab/sim
An example UV flag (FG) file is listed below. The text file has
the basic FITS format with keywords and HISTORY Lines permitted.
Note several points:
a) XTENSION is the table type, either a simple TABLE or binary
b) NAXIS1 is the width of the text file in characters.
c) NOPASS is the number of passes needed to fit all columns of the
table into NAXIS1 chars.
d) TFIELDS is the actual number of Columns in the Table.
e) TBCOL lists the start column of the table field and pass
containing the variable. The Field pass is decoded by:
PASS(I) = TBCOL(I)/1000 + 1
The Field begin column is decoded by:
BCOL(I) = MOD ( TBCOL(I), 1000)
f) TFDIM is the Field DIMension; number of array elements,
characters or bits. A dimension of 0 is allowed.
g) END An END card must preceed column labels
h) LABEL Labels are repeated before each pass.
i) ROW Each record must start with a row number. Flaged table
entries are marked by negative ROW numbers. ROW number is
repeated for the maximum dimension of the Fields in each
pass. In the example below, columns 1, 2, 7 and 8 have
dimension 1, while columns 3, 4, 5 and 6 have dimension 2.
Characters and Bits MUST have dimension 1. If a variable
is written with other variables having greater array
length, double quotes ('') mark the variable location.
j) PASS Passes have different dimensions. In Pass 2 of the
example, all variables have dimension 1, so Rows are
listed only once. The begin and end of the data part of
each pass is marked with strings '***BEGIN*PASS***' and
'***END*PASS***' starting in column 1.
XTENSION= 'A3DTABLE' / extension type
BITPIX = 8 / printable ASCII codes
NAXIS = 2 / Table is a matrix
NAXIS1 = 80 / Max. no. of characters/pass
NAXIS2 = 7 / Number of entries in table
PCOUNT = 0 / Random parameter count
GCOUNT = 1 / Group count
NOPASS = 2 / Number of passes thru table
TFIELDS = 8 / Number of fields in each row
EXTNAME = 'AIPS FG ' / AIPS table file
EXTVER = 1 / Version Number of table
TBCOL1 = 9 / Starting char. pos. of field
TFORM1 = 'I12 ' / Fortran format of field 1
TFDIM1 = 1 / Dimension of field 1
TTYPE1 = 'SOURCE ' / type (heading) of field 1
TUNIT1 = ' ' / physical units of field 1
TBCOL2 = 20 / Starting char. pos. of field
TFORM2 = 'I12 ' / Fortran format of field 2
TFDIM2 = 1 / Dimension of field 2
TTYPE2 = 'SUBARRAY' / type (heading) of field 2
TUNIT2 = ' ' / physical units of field 2
TBCOL3 = 31 / Starting char. pos. of field
TFORM3 = 'I12 ' / Fortran format of field 3
TFDIM3 = 2 / Dimension of field 3
TTYPE3 = 'ANTS ' / type (heading) of field 3
TUNIT3 = ' ' / physical units of field 3
TBCOL4 = 42 / Starting char. pos. of field
TFORM4 = 'E15.6 ' / Fortran format of field 4
TFDIM4 = 2 / Dimension of field 4
TTYPE4 = 'TIME RAN' / type (heading) of field 4
TUNIT4 = 'DAYS ' / physical units of field 4
TBCOL5 = 57 / Starting char. pos. of field
TFORM5 = 'I12 ' / Fortran format of field 5
TFDIM5 = 2 / Dimension of field 5
TTYPE5 = 'IFS ' / type (heading) of field 5
TUNIT5 = ' ' / physical units of field 5
TBCOL6 = 68 / Starting char. pos. of field
TFORM6 = 'I12 ' / Fortran format of field 6
TFDIM6 = 2 / Dimension of field 6
TTYPE6 = 'CHANS ' / type (heading) of field 6
TUNIT6 = ' ' / physical units of field 6
TBCOL7 = 1009 / Starting char. pos. of field
TFORM7 = 'X4 ' / Fortran format of field 7
TFDIM7 = 4 / Dimension of field 7
TTYPE7 = 'PFLAGS ' / type (heading) of field 7
TUNIT7 = ' ' / physical units of field 7
TBCOL8 = 1018 / Starting char. pos. of field
TFORM8 = 'A24 ' / Fortran format of field 8
TFDIM8 = 24 / Dimension of field 8
TTYPE8 = 'REASON ' / type (heading) of field 8
TUNIT8 = ' ' / physical units of field 8
HISTORY TBOUT /INNAME='3C286 .MULTI . 2'
AUTHOR = 'Glen Langston' / author of table
REFERENC= 'A. J. (1989) 97:1283' / published reference
COL. NO. 1 2 3 4 5 6
ROW SOURCE SUBARRAY ANTS TIME RAN IFS CHANS
1 0 0 7 -2.314815E-05 1 1
1 '' '' 9 9.990000E+02 1 0
2 0 0 7 -2.314815E-05 1 1
2 '' '' 10 999 1 0
3 0 0 7 -0.2314815E-04 1 1
3 '' '' 11 99.9E+01 1 0
4 0 0 8 -231.4815D-07 1 1
4 '' '' 9 999 1 0
-5 0 0 08 -0.00002314815 1 1
-5 '' '' 10 9.990000E+02 1 0
6 0 0 8 -2.314815E-05 1 1
6 '' '' 11 9.990000E+02 1 0
7 0 0 20 -2.314815E-05 1 1
7 '' '' 21 9.990000E+02 1 0
COL. NO. 7 8
ROW PFLAGS REASON
1 '1111' 'TBIN TBOUT TEST '
2 '1111' 'TBIN TBOUT TEST '
3 '1111' 'TBIN TBOUT TEST '
4 '1111' 'TBIN TBOUT TEST '
-5 '1111' 'TBIN TBOUT TEST '
6 '1111' 'TBIN TBOUT TEST '
7 '1100' 'ANOTHER TBIN/OUT TEST '
The Table Rows have been jumbled to illustrate that the input is read
in free format.