[76] | 1 | #import genera operating system related functions |
---|
| 2 | import os |
---|
[84] | 3 | #import asap module |
---|
| 4 | from asap import * |
---|
[115] | 5 | # create a readersa and open an RPFITS file |
---|
| 6 | r = reader('/u/mmarquar/zorro/singledish/data/2001-09-01_0332_P363.rpf') |
---|
[20] | 7 | # create a vector with numbers [0..109] |
---|
| 8 | integrations = range(110) |
---|
| 9 | # get the data out of the reader |
---|
[115] | 10 | scans = r.read(integrations) |
---|
[20] | 11 | # close the reader |
---|
| 12 | r = None |
---|
[115] | 13 | print 'Begin export test...' |
---|
| 14 | # Write out the spectra in SDFITS format |
---|
| 15 | scans.save('/tmp/test_SDWriter.sdfits','SDFITS') |
---|
[76] | 16 | # clean up |
---|
| 17 | print "removing test_SDWriter.sdfits ..." |
---|
[84] | 18 | os.remove('/tmp/test_SDWriter.sdfits') |
---|
[20] | 19 | # print a short summary of the data |
---|
| 20 | scans.summary() |
---|
[115] | 21 | # get the scan with the number '0' |
---|
| 22 | scan = scans.get_scan(0) |
---|
| 23 | # get the scan with the name 'ref_R' |
---|
| 24 | ref = scans.get_scan('ref_R') |
---|
[20] | 25 | # close the data table |
---|
| 26 | scans = None |
---|
| 27 | # open the math server |
---|
| 28 | # average the "on" scan |
---|
[115] | 29 | scanav = average_time(scan) |
---|
[20] | 30 | # get rid of the original scan |
---|
| 31 | scan = None |
---|
| 32 | # print a summary of the scan |
---|
| 33 | scanav.summary() |
---|
| 34 | # average the "off" scan |
---|
[115] | 35 | refav = average_time(ref) |
---|
[20] | 36 | # get rid of the original scan |
---|
| 37 | ref = None |
---|
| 38 | # print a summary of the scan |
---|
| 39 | refav.summary() |
---|
| 40 | # form the quotione spectrum |
---|
[76] | 41 | quot = quotient(scanav,refav) |
---|
[20] | 42 | # set the cursor to polarisation 0 |
---|
[115] | 43 | quot.set_selection(thepol=0) |
---|
[20] | 44 | # get the spectrum for polarisation 0 |
---|
| 45 | v0 = quot.getspectrum() |
---|
| 46 | #print the first ten channel |
---|
| 47 | print v0[0:10] |
---|
[76] | 48 | # set the cursor to polarisation 1 |
---|
[115] | 49 | quot.set_selection(thepol=1) |
---|
[76] | 50 | # get the spectrum for polarisation 1 |
---|
[20] | 51 | v1 = quot.getspectrum() |
---|
| 52 | #print the first ten channel |
---|
| 53 | print v1[0:10] |
---|
| 54 | # write it to disk for further use |
---|
[115] | 55 | quot.save('/tmp/myfirstquotient.asap') |
---|
[76] | 56 | # cleanup |
---|
[115] | 57 | print "removing /tmp/myfirstquotient.asap ..." |
---|
| 58 | os.system('rm -rf /tmp/myfirstquotient.asap') |
---|
[76] | 59 | print "Test successful." |
---|