<font face="Verdana, Arial, Helvetica" size="2">Rusen Lu updated #11956<br />
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AIPS FITLD<br />
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<div style="margin-left: 40px;">Ticket ID: 11956</div>
<div style="margin-left: 40px;">URL: <a href="https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/11956">https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/11956</a></div>
<div style="margin-left: 40px;">Name: Rusen Lu</div>
<div style="margin-left: 40px;">Email address: <a href="mailto:rslu@haystack.mit.edu">rslu@haystack.mit.edu</a></div>
<div style="margin-left: 40px;">Creator: User</div>
<div style="margin-left: 40px;">Department: AIPS Data Reduction</div>
<div style="margin-left: 40px;">Staff (Owner): Eric Greisen</div>
<div style="margin-left: 40px;">Type: Issue</div>
<div style="margin-left: 40px;">Status: Open</div>
<div style="margin-left: 40px;">Priority: Default</div>
<div style="margin-left: 40px;">SLA: NRAO E2E</div>
<div style="margin-left: 40px;">Template group: Default</div>
<div style="margin-left: 40px;">Created: 20 April 2018 03:00 PM</div>
<div style="margin-left: 40px;">Updated: 23 April 2018 01:30 PM</div>
<div style="margin-left: 40px;">Reply due: 24 April 2018 03:28 PM (1d 1h 57m)</div>
<div style="margin-left: 40px;">Resolution due: 14 January 2021 12:00 AM (996d 10h 29m)</div>
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Dear Eric,<br /><br />I tried to read in a few files (6) to different output files (doconcat false) using the 31DEC18 version. The reason that I selected 6 files is because I saw the first error came after loading the first 5 ones. The FITLD input is the following (same for each file, except DATAIN and OUTNAME):<br /><br />AIPS 1: FITLD: Task to store an image or UV data from a FITS tape<br />AIPS 1: Adverbs Values Comments<br />AIPS 1: ----------------------------------------------------------------<br />AIPS 1: INTAPE 1 Input tape drive # (0 => 1)<br />AIPS 1: NFILES 0 # of files to advance on tape<br />AIPS 1: DATAIN 'PWD:loader.fits6' Disk file name<br />AIPS 1: OUTNAME 'test6' File name (name)<br />AIPS 1: OUTCLASS ' ' File name (class)<br />AIPS 1: OUTSEQ 0 File name (seq. #)<br />AIPS 1: 0 => highest unique number<br />AIPS 1: => matching (on VLBA)<br />AIPS 1: -1 => FITS tape value<br />AIPS 1: OUTDISK 1 Disk drive # (0 => any)<br />AIPS 1: OPTYPE ' ' Type of data to load,<br />AIPS 1: ' ' => all types<br />AIPS 1: 'UV' => UV data<br />AIPS 1: 'IM' => images<br />AIPS 1: NCOUNT 0 Number of files to load.<br />AIPS 1: DOTABLE 1 True (1.0) means load tables<br />AIPS 1: for images.<br />AIPS 1: DOUVCOMP -1 >0 => compressed data (FITS)<br />AIPS 1: DOCONCAT -1 >0 -> if VLBA correlator data<br />AIPS 1: append data to existing<br />AIPS 1: files, or if no appropriate<br />AIPS 1: files exist create a new file<br />AIPS 1: and append all data to that<br />AIPS 1: file.<br />AIPS 1: DOKEEP 0 > 0 -> keep fully flagged<br />AIPS 1: data records<br />AIPS 1: NPIECE 0 Maximum uv table piece to<br />AIPS 1: load (ignored for tape unless<br />AIPS 1: NCOUNT = 1)<br />AIPS 1: ERROR -1 >= 2 -> do not use AIPS<br />AIPS 1: history in the FITS file<br />AIPS 1: *****************************<br />AIPS 1: Following adverbs are useful<br />AIPS 1: only when reading VLBA IDI<br />AIPS 1: distribution tapes.<br />AIPS 1: *****************************<br />AIPS 1: CLINT 0.01667 CL entry interval (min)<br />AIPS 1: 0 => 1 minute.<br />AIPS 1: SOURCES *all ' ' Source list to accept.<br />AIPS 1: QUAL -1 Source qualifier -1=>all<br />AIPS 1: TIMERANG *all 0 Timerange selected<br />AIPS 1: ** press RETURN for more, enter Q or next line to quit print **<br />#<br />AIPS 1: BCHAN 1 Lowest spectral channel<br />AIPS 1: number to select in each IF.<br />AIPS 1: 0=>1<br />AIPS 1: ECHAN 0 Highest spectral channel<br />AIPS 1: number to select in each IF.<br />AIPS 1: 0=>highest<br />AIPS 1: BIF 0 Lowest IF number 0=>1<br />AIPS 1: EIF 0 Highest IF number 0=>all<br />AIPS 1: DIGICOR 1 Controls the application of<br />AIPS 1: the VLBA and DIFX correlator<br />AIPS 1: digital correction.<br />AIPS 1: 0,1,3 => perform corrections<br />AIPS 1: 2,4 => perform cross-power<br />AIPS 1: corrections, do total-power<br />AIPS 1: only if zero padding used.<br />AIPS 1: -1 => do NOT perform<br />AIPS 1: corrections.<br />AIPS 1: 3,4 => do even if not VLBA<br />AIPS 1: SEE HELP for more details<br />AIPS 1: REFDATE ' ' Reference date. 'yyyymmdd'<br />AIPS 1: before or = the obs date<br />AIPS 1: ' ' => the obs date<br />AIPS 1: SELBAND -1 Bandwidth to select (kHz)<br />AIPS 1: SELFREQ -1 Frequency to select (MHz).<br />AIPS 1: See HELP.<br />AIPS 1: FQTOL -1 Frequency tolerance assigned<br />AIPS 1: to SELFREQ, FITLD will select<br />AIPS 1: data with freq. of SELFREQ<br />AIPS 1: +/- FQTOL.<br />AIPS 1: The unit of FQTOL is kHz.<br />AIPS 1: <=0 => 10 kHz<br />AIPS 1: WTTHRESH 0 Flagging threshold based on<br />AIPS 1: weights. See HELP.<br />AIPS 1: 0 => no flagging<br />AIPS 1: 1 => will flag ALL data<br />AIPS 1: OPCODE ' ' Specify if wish to keep VT<br />AIPS 1: (VLBA Tape Statistics) table<br />AIPS 1: and other tables. See HELP.<br />AIPS 1: ' ' => do not save tables<br />AIPS 1: ANTNAME *all ' ' List antenna station names in<br />AIPS 1: desired order (IDI data only)<br /><br /><br /><br />I do not see a problem for each individual data file, but noticed that the number of antennas and their order are not the same, as you can see from the attached 6 PRTAB results on AN tables (file1.an.txt to file6.an.txt).<br /><br />I also loaded the 6 files at once with doconcat true using both 31DEC18 and 31DEC16:<br />The input parameters are:<br /><br />AIPS 1: FITLD: Task to store an image or UV data from a FITS tape<br />AIPS 1: Adverbs Values Comments<br />AIPS 1: ----------------------------------------------------------------<br />AIPS 1: INTAPE 1 Input tape drive # (0 => 1)<br />AIPS 1: NFILES 0 # of files to advance on tape<br />AIPS 1: DATAIN 'PWD:loader.fits' Disk file name<br />AIPS 1: OUTNAME 'test1_6' File name (name)<br />AIPS 1: OUTCLASS ' ' File name (class)<br />AIPS 1: OUTSEQ 0 File name (seq. #)<br />AIPS 1: 0 => highest unique number<br />AIPS 1: => matching (on VLBA)<br />AIPS 1: -1 => FITS tape value<br />AIPS 1: OUTDISK 1 Disk drive # (0 => any)<br />AIPS 1: OPTYPE ' ' Type of data to load,<br />AIPS 1: ' ' => all types<br />AIPS 1: 'UV' => UV data<br />AIPS 1: 'IM' => images<br />AIPS 1: NCOUNT 6 Number of files to load.<br />AIPS 1: DOTABLE 1 True (1.0) means load tables<br />AIPS 1: for images.<br />AIPS 1: DOUVCOMP -1 >0 => compressed data (FITS)<br />AIPS 1: DOCONCAT 1 >0 -> if VLBA correlator data<br />AIPS 1: append data to existing<br />AIPS 1: files, or if no appropriate<br />AIPS 1: files exist create a new file<br />AIPS 1: and append all data to that<br />AIPS 1: file.<br />AIPS 1: DOKEEP 0 > 0 -> keep fully flagged<br />AIPS 1: data records<br />AIPS 1: NPIECE 0 Maximum uv table piece to<br />AIPS 1: load (ignored for tape unless<br />AIPS 1: NCOUNT = 1)<br />AIPS 1: ERROR -1 >= 2 -> do not use AIPS<br />AIPS 1: history in the FITS file<br />AIPS 1: *****************************<br />AIPS 1: Following adverbs are useful<br />AIPS 1: only when reading VLBA IDI<br />AIPS 1: distribution tapes.<br />AIPS 1: *****************************<br />AIPS 1: CLINT 0.01667 CL entry interval (min)<br />AIPS 1: 0 => 1 minute.<br />AIPS 1: SOURCES *all ' ' Source list to accept.<br />AIPS 1: QUAL -1 Source qualifier -1=>all<br />AIPS 1: TIMERANG *all 0 Timerange selected<br />AIPS 1: BCHAN 1 Lowest spectral channel<br />AIPS 1: number to select in each IF.<br />AIPS 1: 0=>1<br />AIPS 1: ECHAN 0 Highest spectral channel<br />AIPS 1: number to select in each IF.<br />AIPS 1: 0=>highest<br />AIPS 1: BIF 0 Lowest IF number 0=>1<br />AIPS 1: EIF 0 Highest IF number 0=>all<br />AIPS 1: DIGICOR 1 Controls the application of<br />AIPS 1: the VLBA and DIFX correlator<br />AIPS 1: digital correction.<br />AIPS 1: 0,1,3 => perform corrections<br />AIPS 1: 2,4 => perform cross-power<br />AIPS 1: corrections, do total-power<br />AIPS 1: only if zero padding used.<br />AIPS 1: -1 => do NOT perform<br />AIPS 1: corrections.<br />AIPS 1: 3,4 => do even if not VLBA<br />AIPS 1: SEE HELP for more details<br />AIPS 1: REFDATE ' ' Reference date. 'yyyymmdd'<br />AIPS 1: before or = the obs date<br />AIPS 1: ' ' => the obs date<br />AIPS 1: SELBAND -1 Bandwidth to select (kHz)<br />AIPS 1: SELFREQ -1 Frequency to select (MHz).<br />AIPS 1: See HELP.<br />AIPS 1: FQTOL -1 Frequency tolerance assigned<br />AIPS 1: to SELFREQ, FITLD will select<br />AIPS 1: data with freq. of SELFREQ<br />AIPS 1: +/- FQTOL.<br />AIPS 1: The unit of FQTOL is kHz.<br />AIPS 1: <=0 => 10 kHz<br />AIPS 1: WTTHRESH 0 Flagging threshold based on<br />AIPS 1: weights. See HELP.<br />AIPS 1: 0 => no flagging<br />AIPS 1: 1 => will flag ALL data<br />AIPS 1: OPCODE ' ' Specify if wish to keep VT<br />AIPS 1: (VLBA Tape Statistics) table<br />AIPS 1: and other tables. See HELP.<br />AIPS 1: ' ' => do not save tables<br />AIPS 1: ANTNAME *all ' ' List antenna station names in<br />AIPS 1: desired order (IDI data only)<br /><br />I attached here the message for loading the data (files1to6.31DEC18.log and files1to6.31DEC16.log) and the resulting AN tables<br />(files1to6.31DEC18.an.txt and files1to6.31DEC16.an.txt). As you can see, the version 31DEC16 can avoid the problem of messing thing up that I reported last week. Please take a look.<br /><br />Thank you,<br /><br />Rusen Lu
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