[daip] UVSUB changes UVWs of some of output data...for some CC models...

[Eric Greisen]

Your data are at baselines too long for the model - at least with
gridded subtraction.  I have added messages and improved the error
counting:

AIPS 2: Found in Version=MYAREA
UVSUB2: Task UVSUB  (release of 31DEC01) begins
UVSUB2: You are using a non-standard program
AIPS 2: Resumes
>UVSUB2: Create MAR6MERVB W2.ERIC  .   1 (UV)  on disk  4  cno   51
UVSUB2: ALGSTB: Only  632 Rows In AP (Need  2059)
UVSUB2: ALGSTB: Ipol gridded model subtraction, chans    1 through    1
UVSUB2: UVLIMT: LIMITS= 0.00E+00 1.00E+20; MAX U= 5.14E+07, V= 5.14E+07
UVSUB2: UVLIMT: Point      237  (U=   54193004.,V=   24781624.) Dropped
UVSUB2: UVLIMT: Point      238  (U=   50943764.,V=   52213684.) Dropped
UVSUB2: UVLIMT: Point      242  (U=   55875188.,V=   31117954.) Dropped
UVSUB2: UVLIMT: Point      247  (U=   54200784.,V=   24780634.) Dropped
UVSUB2: UVLIMT: Point      248  (U=   50957844.,V=   52212752.) Dropped
UVSUB2: UVLIMT: Point      252  (U=   55884488.,V=   31116932.) Dropped
UVSUB2: UVLIMT: Point      257  (U=   54208556.,V=   24779642.) Dropped
UVSUB2: UVLIMT: Point      258  (U=   50971912.,V=   52211816.) Dropped
UVSUB2: UVLIMT: Point      263  (U=   61107180.,V=   27737128.) Dropped
UVSUB2: UVLIMT: Point      267  (U=   55893800.,V=   31115910.) Dropped
UVSUB2: UVLIMT: REMAINING MESSAGES SUPPRESSED
UVSUB2: ALGSTB: Pass   1; 2048-1427 Cells, with    43108 Pts
UVSUB2: UVPREP: Maximum U Baseline is  5.141E+07 lambda.
UVSUB2: ALGSTB: Pass   2; 1426- 805 Cells, with    25893 Pts
UVSUB2: ALGSTB: Pass   3;  804- 183 Cells, with    39980 Pts
UVSUB2: ALGSTB: Pass   4;  182-   0 Cells, with    67534 Pts
UVSUB2: **************************************************
UVSUB2: ALGSTB:     28186 POINTS FLAGGED FOR BEING OFF THE GRID
UVSUB2: **************************************************
UVSUB2: Copied AN file from vol/cno/vers  4   41   1 to  4   51   1
UVSUB2: Copied AN file from vol/cno/vers  4   41   2 to  4   51   2
UVSUB2: Copied AN file from vol/cno/vers  4   41   3 to  4   51   3
UVSUB2: Copied FQ file from vol/cno/vers  4   41   1 to  4   51   1
UVSUB2: Appears to have ended successfully


Unfortunately, the logic of ALGSTB requires that all data points go in
and come out and that all be at legal U,V's so it does change the U
and V while it flags the data.

Eric