[daip] New Ticket - [!OJP-321517]: PCLOD length limit?

Jan Wagner do-not-reply at nrao.edu
Mon Aug 13 14:38:38 EDT 2012 

New Ticket: PCLOD length limit?

Got some troubles with PCLOD, am perhaps trying to do something unsupported...

First, a possible PCLOD 31DEC12 HELP bug: using FREQUENCY produces "PCLOD2: KEYIN: ERROR, UNKNOWN PARAMETER FREQUENCY", but using FREQUENC works fine. Similarly PULSE-CAL gives an error but PULSE-CA works.

The main issue though: I'm trying to load an ASCII file in the PCLOD format. It has pulse cal data from 16 IFs at 0.03 intervals. These ~30ms are required due to phase jumps in the receiver originating from cryo pumping and other causes.

When the ASCII file has 1250 time samples (1250 * 16 IF values) it loads fine.

When the ASCII file has 1251 time samples, PCLOD quits with "TABIO: I/O ERROR 3 ON READ PHYS REC 38". And when the ASCII file has 1252 or more time samples, PCLOD fails with "ZMSGOP: FILE DA00:MADFFFFFF; NOT FOUND".

Is this some built-in limit? Or my ASCII file format is not correct?

Below are the two error cases and also the start of the ASCII file.

Error with 1251 entries of 16 IFs each:

PCLOD2: Task PCLOD  (release of 31DEC12) begins
PCLOD2: ZTXOP2: using translated file name =
PCLOD2: ZTXOP2: /Exps/1mmApex/phasecal/test.pcal
PCLOD2: Reading data for AP
AIPS 2: Resumes
>PCLOD2: ZFI2: DELAY 1
PCLOD2: ZFI2: DELAY 2
PCLOD2: ZFI2: REQUEST FOR BYTES 37889 THRU = 38912
PCLOD2: ZFIO: OPER = READ LUN = 30 NREC =       38
PCLOD2: ZFI2: BEYOND EOF = 37888
PCLOD2: ZERROR: IN ZFI2   ERRNO = 22 (Invalid argument)
PCLOD2: TABIO: I/O ERROR    3 ON READ PHYS REC          38
PCLOD2: TABPC : ERROR   3 FROM TABIO  OPCODE = WRIT
PCLOD2: READPC: ERROR   2 FROM TABPC  OPCODE = WRIT
PCLOD2: ZCLOSE: DOES NOT PERFORM TEXT FILE CLOSES AS OF 15OCT87
PCLOD2: Purports to die of UNNATURAL causes

Error with 1252 or more entries of 16 IFs each:

PCLOD2: Task PCLOD  (release of 31DEC12) begins
PCLOD2: ZTXOP2: using translated file name =
PCLOD2: ZTXOP2: /Exps/1mmApex/phasecal/test.pcal
PCLOD2: Reading data for AP
AIPS 2: Resumes
> ZMSGOP: FILE DA00:MADFFFFFF;          NOT FOUND
ZTTYI2: write to msgserver: Bad file descriptor
ZTTYI2: Problem with MSGSRV communication
ZTTYI2: Messages will continue here instead; next may be a repeat
MSGWRT ERROR      2 AT OPEN                                             
ZTTYIO: Message server write failed
PCLOD2: ZOPEN: AC FILES ON DISK  1 NOT ALLOWED FOR USER*****
 ZMSGOP: FILE DA00:MADFFFFFF;          NOT FOUND

Format of the input file:

FREQUENC AP /
 ! Tone  Chan  SB    Pol ToneSkyFreq #bits   LoFreq     BW
   'T01'   1  'U'   'LCP'    228860.00   2    228849.00   32000.0
   'T02'   2  'U'   'LCP'    228892.00   2    228881.00   32000.0
   'T03'   3  'U'   'LCP'    228924.00   2    228913.00   32000.0
   'T04'   4  'U'   'LCP'    228956.00   2    228945.00   32000.0
   'T05'   5  'U'   'LCP'    228988.00   2    228977.00   32000.0
   'T06'   6  'U'   'LCP'    229020.00   2    229009.00   32000.0
   'T07'   7  'U'   'LCP'    229052.00   2    229041.00   32000.0
   'T08'   8  'U'   'LCP'    229084.00   2    229073.00   32000.0
   'T09'   9  'U'   'LCP'    229116.00   2    229105.00   32000.0
   'T10'   10  'U'   'LCP'    229148.00   2    229137.00   32000.0
   'T11'   11  'U'   'LCP'    229180.00   2    229169.00   32000.0
   'T12'   12  'U'   'LCP'    229212.00   2    229201.00   32000.0
   'T13'   13  'U'   'LCP'    229244.00   2    229233.00   32000.0
   'T14'   14  'U'   'LCP'    229276.00   2    229265.00   32000.0
   'T15'   15  'U'   'LCP'    229308.00   2    229297.00   32000.0
   'T16'   16  'U'   'LCP'    229340.00   2    229329.00   32000.0
   /
PULSE-CA  AP  /
128 02:00:00.002 'T01'  3872.9606 -12.5474
128 02:00:00.002 'T02'  3872.9606 -12.5474
128 02:00:00.002 'T03'  3872.9606 -12.5474
128 02:00:00.002 'T04'  3872.9606 -12.5474
128 02:00:00.002 'T05'  3872.9606 -12.5474
128 02:00:00.002 'T06'  3872.9606 -12.5474
128 02:00:00.002 'T07'  3872.9606 -12.5474
128 02:00:00.002 'T08'  3872.9606 -12.5474
128 02:00:00.002 'T09'  3872.9606 -12.5474
128 02:00:00.002 'T10'  3872.9606 -12.5474
128 02:00:00.002 'T11'  3872.9606 -12.5474
128 02:00:00.002 'T12'  3872.9606 -12.5474
128 02:00:00.002 'T13'  3872.9606 -12.5474
128 02:00:00.002 'T14'  3872.9606 -12.5474
128 02:00:00.002 'T15'  3872.9606 -12.5474
128 02:00:00.002 'T16'  3872.9606 -12.5474
128 02:00:00.023 'T01'  12279.9881 -60.8839
128 02:00:00.023 'T02'  12279.9881 -60.8839
128 02:00:00.023 'T03'  12279.9881 -60.8839
128 02:00:00.023 'T04'  12279.9881 -60.8839
128 02:00:00.023 'T05'  12279.9881 -60.8839
128 02:00:00.023 'T06'  12279.9881 -60.8839
128 02:00:00.023 'T07'  12279.9881 -60.8839
128 02:00:00.023 'T08'  12279.9881 -60.8839
128 02:00:00.023 'T09'  12279.9881 -60.8839
128 02:00:00.023 'T10'  12279.9881 -60.8839
128 02:00:00.023 'T11'  12279.9881 -60.8839
128 02:00:00.023 'T12'  12279.9881 -60.8839
128 02:00:00.023 'T13'  12279.9881 -60.8839
128 02:00:00.023 'T14'  12279.9881 -60.8839
128 02:00:00.023 'T15'  12279.9881 -60.8839
128 02:00:00.023 'T16'  12279.9881 -60.8839
128 02:00:00.041 'T01'  13300.1780 -102.1801
128 02:00:00.041 'T02'  13300.1780 -102.1801
... etc
 /
 

Ticket Details
===================
Ticket ID: OJP-321517
Department: AIPS Data Processing
Priority: Default
Status: Open
Link:  https://help.nrao.edu/staff/index.php?_m=tickets&_a=viewticket&ticketid=2177

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