[daip] (no subject)
Eric Greisen
egreisen at cv3.cv.nrao.edu
Fri Jul 19 13:35:05 EDT 2002
Katrina Exter writes:
> >
> > Please also do an ls -l on $DATA/AE146.020502.C
>
> 33140 -rw-r--r-- 1 kme staff 33892525 Jul 17 19:51 AE146.020502.C
> 32572 -rw-r--r-- 1 kme staff 33315840 Jul 17 19:50 AE146.020502.K
> 29348 -rw-r--r-- 1 kme staff 30015360 Jul 17 19:50 AE146.020502.Q
>
> comparing to the entries in the ftp directory I see that the first file is
> missing something. I've ftp'd teh data twice now and the C-band file is
> both time the same size. I have managed to read the second and third
> files into aips with fitld ok (I get the header and the usual success
> message). The first one (C-band) still fails, I get this error
The 2nd and 3rd above are an integer multiple of 2880 bytes as
they must be, the first is not. Did you use "binary" when doing the
ftp? That is absolutely required.
>
>
> >infile 'data:AE146.020502.C'
> >go
> ERROR 3 ON UNIT TTDEV01 , GETTING HOST/SERVICE BY NAME
> ZMSGOP: ZTTOPN RETURNS ERROR = 1 FOR LUN = 6
This is an error looking for the aips message server which tells
me that you do not have the system services AIPS requires installed in
thee /etc/services
sssin 5000/tcp SSSIN # AIPS TV server
ssslock 5002/tcp SSSLOCK # AIPS TV Lock
msgserv 5008/tcp MSGSERV # AIPS Message Server
tekserv 5009/tcp TEKSERV # AIPS TekServer
aipsmt0 5010/tcp AIPSMT0 # AIPS remote FITS disk access
aipsmt1 5011/tcp AIPSMT1 # AIPS remote tape 1
aipsmt2 5012/tcp AIPSMT2 # AIPS remote tape 2
aipsmt3 5013/tcp AIPSMT3
aipsmt4 5014/tcp AIPSMT4
aipsmt5 5015/tcp AIPSMT5
>
> this error is probably associated with our failure to get the tapemon to
> setup properly, meaning I cant read data onto or off of tape. if it
> becomes annoying then when our computer manager is back at work I will
> nicely ask him if he can look at installing aips all over again.
If you are trying to use TPMON to read/write data from one computer
using a tape drive on another computer then these services are
required. If you are using a local tape drive then something else is
wrong. I would need to see the inputs to MOUNT, $NET0/TPDEVS.LIST (or
all the messages when you start up aips), and the messages from the
atteempt to use tape.
>
> FITLD1: Found MULTI observed on 02-MAY-2002
> FITLD1: UV data will be written in compressed format
> FITLD1: Create TEST .C BAND. 3 (UV) on disk 1 cno 5
> FITLD1: TAPIO: RECORD LENGTH 685 INCONSISTENT WITH BLOCK SIZE 2880
> FITLD1: ERROR READING FITS TABLE
> FITLD1: ERROR 1 RETURNED FROM FITRXU
> FITLD1: WARNING: 453 unknown records skipped while reading tape
> FITLD1: Purports to die of UNNATURAL causes
> FITLD1: dakika 31DEC01 TST: Cpu= 2.0 Real= 3
> AIPS 1: Resumes
I think that this is somehow correct although I do not understand how
a record inside the file could have any fixed length. Your file is
exactly N*2880 bytes + 685 long so aips and ls are consistent.
> .
>
> this is all the messages I get from running fitld
>
>
> details on this file when it is read in
> >getn 5
> AIPS 1: Got(1) disk= 1 user= 50 type=UV TEST.C BAND.3
> >imh
> AIPS 1: Image=MULTI (UV) Filename=TEST .C BAND. 3
> AIPS 1: Telescope=VLA Receiver=VLA
> AIPS 1: Observer=AE146 User #= 50
> AIPS 1: Observ. date=02-MAY-2002 Map date=19-JUL-2002
> AIPS 1: # visibilities 254497 Sort order TB
> AIPS 1: Rand axes: UU-L-SIN VV-L-SIN WW-L-SIN BASELINE TIME1
> AIPS 1: SOURCE FREQSEL WEIGHT SCALE
> AIPS 1: ----------------------------------------------------------------
> AIPS 1: Type Pixels Coord value at Pixel Coord incr Rotat
> AIPS 1: COMPLEX 1 1.0000000E+00 1.00 1.0000000E+00 0.00
This says you have loaded the data compressed (it says 3 - for
real imaginary and weight when uncompressed)
> AIPS 1: STOKES 4 -1.0000000E+00 1.00 -1.0000000E+00 0.00
> AIPS 1: IF 2 1.0000000E+00 1.00 1.0000000E+00 0.00
> AIPS 1: FREQ 1 4.8851000E+09 1.00 5.0000000E+07 0.00
> AIPS 1: RA 1 00 00 00.000 1.00 3600.000 0.00
> AIPS 1: DEC 1 00 00 00.000 1.00 3600.000 0.00
> AIPS 1: ----------------------------------------------------------------
> AIPS 1: Coordinate equinox 2000.00
> AIPS 1: Maximum version number of extension files of type HI is 1
> AIPS 1: Keyword = 'CORRMODE' value = ' '
> AIPS 1: Keyword = 'VLAIFS ' value = 'ABCD '
>
>
> Im not sure how many pages of the prtuv you want, the first page is
>
> #go
> ERROR 3 ON UNIT TTDEV01 , GETTING HOST/SERVICE BY NAME
> ZMSGOP: ZTTOPN RETURNS ERROR = 1 FOR LUN = 6
> PRTUV1: Finding the scaling parameters to set formats
> PRTUV1: Full dynamic range of weights cannot be printed
> dakika PRTUV(31DEC01) 50 19-JUL-2002 09:55:16 Page 1
> TEST .C BAND. 3 Vol= 1 User= 50 Channels= 1 to 1
> Source= MULTI RA = 00 00 0.00 DEC = 00 00 0.0 IF = 1
> Freq= 4.885099862 GHz Ncor= 4 No. vis= 254497 Sort order= TB
> Weights have been multiplied by 0.0E+00
>
> MULTI 4.885099862 TB 1 RR 1 LL 1 RL 1
> LR
> Vis # IAT Ant Amp Phas Wt Amp Phas Wt Amp Phas Wt Amp
> Phas Wt
>
> 1 0/12:33:00 22-23 0.0 -79 0 0.0 0 0 0.0 0 0 0.0 41 0
> 2 0/12:33:00 13-23 0.0 130 0 0.0 0 0 0.0 0 0 0.0 149 0
> 3 0/12:33:00 2-23 0.0 0 0 0.0 0 0 0.0 0 0 0.0 -94 0
> 4 0/12:33:00 12-23 0.0 -43 0 0.0 0 0 0.0 0 0 0.0 -55 0
> 5 0/12:33:00 23-27 0.0 0 0 0.0 0 0 0.0 17 0 0.0 0 0
> 6 0/12:33:00 5-23 0.0 0 0 0.0 0 0 0.0 0 0 0.0 -15 0
> 7 0/12:33:00 23-25 0.0 0 0 0.0 0 0 0.0 -34 0 0.0 0 0
> 8 0/12:33:00 13-22 0.0 134 0 0.0 -51 0 0.0 162 0 0.0 15 0
> 9 0/12:33:00 2-22 0.0 0 0 0.2 129 0 0.0 0 0 0.0 10 0
> 10 0/12:33:00 12-22 0.0 12 0 0.0 89 0 0.0 -30 0 0.0 -59 0
> 11 0/12:33:00 22-27 0.0 0 0 0.0 -78 0 0.0 52 0 0.0 0 0
> 12 0/12:33:00 5-22 0.0 0 0 0.0 103 0 0.0 0 0 0.0-179 0
> 13 0/12:33:00 22-25 0.0 0 0 0.0-167 0 0.0 -1 0 0.0 0 0
> 14 0/12:33:00 2-13 0.0 0 0 0.0 -18 0 0.0 0 0 0.0 147 0
> 15 0/12:33:00 12-13 0.0 96 0 0.0 94 0 0.0-158 0 0.0 126 0
> 16 0/12:33:00 13-27 0.0 0 0 0.0-132 0 0.0 0 0 0.0 0 0
> 17 0/12:33:00 5-13 0.0 0 0 0.0 -79 0 0.0 0 0 0.0 42 0
> 18 0/12:33:00 13-25 0.0 0 0 0.0-109 0 0.0 -16 0 0.0 0 0
> 19 0/12:33:00 2-12 0.0 0 0 0.0-125 0 0.0 0 0 0.0 169 0
> 20 0/12:33:00 2-27 0.0 0 0 0.0 120 0 0.0 0 0 0.0 0 0
> 21 0/12:33:00 2- 5 0.0 0 0 0.0 56 0 0.0 0 0 0.0 0 0
> 22 0/12:33:00 2-25 0.0 0 0 0.0 -68 0 0.0 0 0 0.0 0 0
> 23 0/12:33:00 12-27 0.0 0 0 0.0-154 0 0.0 -65 0 0.0 0 0
> 24 0/12:33:00 5-12 0.0 0 0 0.0 166 0 0.0 0 0 0.0 70 0
> 25 0/00:00:00 0-18 0.0 0 0 0.0 0 0******* 0 0 0.0 0 0
> 30 0/00:00:00***- 0 0.0 0 0******* 180 0******* -90 0 0.0 0 0
> 31 0/00:00:00***-** 0.0 0 0 0.0 0 0 0.0 0 0 0.0 0 0
> 32 0/00:00:00 0- 0 0.0 0 0 0.0 0 0 0.0 0 0 0.0 0 0
> 33 0/00:00:00 0-15 0.0 0 0 0.0 0 0 0.0 0 0 0.0 0 0
> Type Q to stop, just hit RETURN to continue
This looks like garbage to me. Do your other files look like good
data or similar garbage?
>
>
> ps do you know, is the data in compressed format or not (what do I set
> doucvomp to)? and are there any other-than-default parameters I should
> set when reading in the data. Finally, is there a VLA reduction manual
> with recommended task defaults listed (Ive reduced some merlin and evn
> data before, but not vla)?
Use the AIPS CookBook - see
http://www.aoc.nrao.edu/aips/cook.html
for the table of contents and access to the chapters.
Eric
More information about the Daip
mailing list