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lbaops:tidnotes:fileprep [2011/08/10 16:09]
shoriuchi
lbaops:tidnotes:fileprep [2015/12/18 16:39]
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-====== Tidbinbilla schedule file preparation ====== 
- 
-===== Obtaining Schedule Files ===== 
-Dowload the .skd and .sum files for the experiment from the pub/​people/​vlbi directory of the FTP site ftp.atnf.csiro.au and put them in pcfs40:​~/​sched_prep. The .skd file is processed to a SNAP and procedure file on pcfs40. These files are further processed on pcfs42 before being returned to pcfs40! 
- 
-  *  scp the .skd file to pcfs40:​~/​sched_prep 
-  *  on pcfs40 in the sched_prep directory: 
-    *  run drudg 
-      *  At the prompt give the name of the .skd file 
-      *  At the next prompt, give the name of the antenna (in this case "​Ti"​) 
-      *  select 3 for a SNAP file then 12 for a PRC file, then 0 to exit 
-    *  transfer the resulting .prc and .snp files to pcfs42:​~/​vlbi_scheds 
- 
-Both the procedure and SNAP files need some modification. The 
-procedure file needs some extra procedures to set up the PCFS 
-patching and VFCs (this is just to keep them happy and doesn'​t 
-impact on the data being recorded or the Tsys measurements). There'​s 
-also a new command to define, called sched_end, that forces the NMC 
-script to exit nicely. The SNAP file needs quite a bit of 
-modification. The first thing is to remove any S2 specific commands 
-as the PCFS won't be controlling the S2. The next thing is to 
-comment out some of the wait commands as some wait commands appear later in 
-the file but have earlier times. For example: 
- 
- ​!2007.080.09:​18:​00 
- ​data_valid=on 
- tape 
- ​midob ​ 
- ​!2007.080.09:​21:​00 
- ​data_valid=off 
- tape 
- ​postob 
- ​scan_name=No0004,​v209a,​180 
- ​source=1237-5046,​123715.24,​-504623.2,​2000.0,​neutral ​ 
- ​setup01=0 
- ​!2007.080.09:​18:​30 
- tape 
- ​st=for,​slp ​ 
- ​!2007.080.09:​21:​00 
- ​data_valid=on 
- tape 
- ​midob ​ 
- 
-Note the wait for 2007.080.09:​18:​30 occurs AFTER 
-2007.080.09:​21:​00. This causes confusion in the observations and can 
-result in sources being missed. Lastly, the SNAP file should be 
-modified to include source commands the NMC script understands. 
- 
-===== Procedure file modifications. ​ ===== 
-  *  Remove the setup01, unloader and loader definitions. These are all S2 specific and will cause problems if they'​re left in. 
-  * Add the following definitions:​ 
- 
- ​define ​ ifds          06132201809x ​           ​ 
- ​ifd=,,​nor,​nor ​ 
- ​lo=lo1,​1380,​usb,​lcp,​1.0,​0 ​ 
- ​patch=lo1,​1h,​2h,​3h,​4h,​5h,​6h,​7h,​8h,​9h,​10h,​11h,​12h,​13h,​14h ​ 
- ​enddef 
- ​define ​ vclba         ​06132201825x ​           ​ 
- ​vc01=285.99,​16.00,​ul 
- ​vc02=285.99,​16.00,​ul 
- ​vc03=285.99,​16.00,​ul 
- ​vc04=285.99,​16.00,​ul 
- ​vc05=285.99,​16.00,​ul 
- ​vc06=285.99,​16.00,​ul 
- ​vc07=285.99,​16.00,​ul 
- ​vc08=285.99,​16.00,​ul  ​ 
- ​vc09=285.99,​16.00,​ul  ​ 
- ​vc10=285.99,​16.00,​ul  ​ 
- ​vc11=285.99,​16.00,​ul  ​ 
- ​vc12=285.99,​16.00,​ul  ​ 
- ​vc13=285.99,​16.00,​ul  ​ 
- ​vc14=285.99,​16.00,​ul  ​ 
- !+1s 
- ​valarm 
- ​enddef 
- ​define ​ postob ​       00000000000x 
- ​enddef 
- ​define ​ midob         ​00000000000x 
- vread 
- ​enddef 
- ​define ​ sched_end ​    ​00000000000x ​           ​ 
- ​sy=echo "​TERMINATE"​ | netcat nmc-ws4 -q 2 6743 
- ​enddef 
- 
-Note the above is for L-band. For other bands, adjust the LO frequency 
-(to the first LO), change the patching to the low frequency filters if 
-needed, and the VC frequencies to something in the band. 
- 
-===== SNAP file modifications ===== 
-Run the script remove_S2_from_SNAP.pl to remove all S2 specific 
-commands and CSIRO2DSN (twice) to remove the time wait problem. This 
-can be done with a single command: 
- 
-  ~/​bin/​remove_S2_from_SNAP.pl SNAP_FILE.snp | ~/​bin/​CSIRO2DSN | ~/​bin/​CSIRO2DSN > temp.snp 
- 
-Obviously replace SNAP_FILE.snp with the name of your SNAP file. 
- 
-Lastly, modify the temp.snp to include the NMC commands with 
-precessed source coordinates:​ 
- 
- ​~/​bin/​snap2sidereal_apc.pl temp.snp 2007 80 > SNAP_FILE.snp 
- 
-Note you need to provide the year and day number of the experiment. The output file should be the name of the original SNAP file. 
- 
-===== Transfer the modified SNAP and procedure files to pcfs40. ​ ===== 
-The .snp file goes in /​usr2/​sched,​ the .prc goes in /usr2/proc 
- 
  
lbaops/tidnotes/fileprep.txt · Last modified: 2015/12/18 16:39 (external edit)