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This operation is normally carried out by Mark Roberts or Chris Jordan
, but in a case of emergency the following is the course of action required.
- Log onto a SUN machine and set the directory to /psrdata/timing
- ftp arthur
- cd disk$data:[pulsar.obs.psrdata_1]
- binary
- get 970102_1.bin 970102_1.VBIN (the uppercase is important)
if there is more than one file for a particular date then
transfer the file with ;1 first then each of the others in
order giving a generation letter (note position of it) i.e.
get 961217_1.bin;1 961217_1.VBIN
get 961217_1.bin;2 961217_1b.VBIN
get 961217_1.bin;3 961217_1c.VBIN etc
- quit
- vms2unix 970102_1
vms2unix 961217_1b etc
note that the .VBIN extension must not be used
This will create a file 970102_1.BIN
961217_1b.BIN (yes uppercase BIN)
- MOST IMPORTANT.
In the directory $PSRHOME/data/obsinfo there is a file called
OBSFREQUENCIES.DAT. To avoid problems later on this file should be
updated with the details of the observing frequencies etc. before any
files are sorted.
- psrprof
- set in1f 970102_1.BIN
- sort
At this point the program looks at the 7th and 8th characters
of the file name to decide whether to create or append to
files 97a.bin, 97a_2.bin or 97a_3.bin. This is why the
extension must come after the '1'
- JUST AS IMPORTANT.
In the directory $PSRHOME/data/obsinfo there is a file called
There is a file in $PSRHOME/data/obsinfo
called filessorted. It is most important that this file is
updated with the files that have been sorted, as the next time
this will be used as the reference as to which files still
need to copied over from Arthur to be sorted.
If the files are NOT sorted in chronological order then the
command in psrprof 'seek time' will not work and there will be
data that CANNOT be acessed or analysed.
More information about the further processing of the data see Use of the Pulsar Timing Programs
Jon Bell
Sun Aug 17 17:32:08 BST 1997. Last Update July 5th 2004 caj