pulsar_finding
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Pulsar Finding
Using Presto, installed on chan1x
Links
B0329+54 May 05, 2018
In /home/sonata/B0329+54/may5
rfifind -time 5.0 -o themask /data/psrB0329+54_5990mhz_58us_6ants_10min_may5_2018.fil
(note: a value of -time > 5.0 produced a warning that the process would take too long, so I chose 5.0)
Pulsar Data RFI Finder
by Scott M. Ransom
Pulsar Data RFI Finder
by Scott M. Ransom
Assuming the data are SIGPROC filterbank format...
Reading SIGPROC filterbank data from 1 file:
'/data/psrB0329+54_5990mhz_58us_6ants_10min_may5_2018.fil'
Number of files = 1
Num of polns = 2 (summed)
Center freq (MHz) = 5990
Num of channels = 2048
Sample time (s) = 5.8593748690328e-05
Spectra/subint = 2400
Total points (N) = 10252288
Total time (s) = 600.71998657286
Clipping sigma = 6.000
Invert the band? = False
Byteswap? = False
Remove zeroDM? = False
File Start Spec Samples Padding Start MJD
---- ---------- ---------- ---------- --------------------
1 0 10252288 0 58243.71099537036935
Analyzing data sections of length 86400 points (5.0625 sec).
Prime factors are: 2 2 2 2 2 2 2 3 3 3 5 5
Writing mask data to 'themask_rfifind.mask'.
Writing RFI data to 'themask_rfifind.rfi'.
Writing statistics to 'themask_rfifind.stats'.
Massaging the data ...
WARNING: Found 0 bad powers in the datapow array. Zeroing them out.
There are 187 RFI instances.
Total number of intervals in the data: 243712
Number of padded intervals: 2048 ( 0.840%)
Number of good intervals: 240996 (98.886%)
Number of bad intervals: 668 ( 0.274%)
Ten most significant birdies:
# Sigma Period(ms) Freq(Hz) Number
----------------------------------------------------
1 32.86 306.818 3.25926 114
2 25.28 259.615 3.85185 125
3 21.68 0.1562515(70) 6399.94(29) 2195
4 20.71 273.649 3.65432 82
5 19.97 177.632 5.62963 88
6 19.42 165.984 6.02469 6
7 18.72 191.038 5.23457 18
8 18.58 266.447 3.75309 196
9 18.53 253.125 3.95062 205
10 17.65 0.312501(28) 3199.99(28) 1972
Ten most numerous birdies:
# Number Period(ms) Freq(Hz) Sigma
----------------------------------------------------
1 148015 1012.5 0.987654 7.91
2 131387 843.75 1.18519 8.32
3 122904 920.455 1.08642 8.32
4 91972 778.846 1.28395 7.81
5 28920 675 1.48148 7.50
6 24917 723.214 1.38272 7.64
7 21096 632.812 1.58025 7.40
8 20489 421.875 2.37037 6.20
9 19002 440.217 2.27161 6.21
10 16586 595.588 1.67901 7.16
Done.
According to This pulsar data query P=0.714519699726 and dm=26.7641
pulsar_finding.1525634696.txt.gz · Last modified: 2023/10/28 18:36 (external edit)