I believe this is because you have not installed psrcat prior to installing psrchive. Please check your psrchive installation, and use the packages/psrcat.csh script included in psrchive. Then you will need to configure and install psrchive, and then configuration and install dspsr.
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Thanks for your help. Your solution worked!
But now I have a different problem.
dspsr B1919+21.00.0000_raw -A -D 12.44 -c 1.337302 -L 10 -O B1919+21._raw.ar.ar
ASCIIObservation: failed read HDR_VERSION
dspsr: Single archive with multiple sub-integrations
dspsr: dedispersion filter length=16384 (minimum=2048) complex samples
dspsr: convolution requires at least 16384 samples
dspsr: blocksize=6710884 samples or 256 MB
itoa_code no alias found for Irbene
dsp::Archiver::finish archive 'B1919+21._raw.ar.ar.ar' with 2 integrations
itoa_code no alias found for Irbene
I am using data recorded at LOFAR station LV614, which could explain itoa_code no alias found for Irbene
But what is causing this "ASCIIObservation: failed read HDR_VERSION"?
About this "dedispersion filter length=16384 (minimum=2048) complex samples"
I understand I need longer observation. What is the minimum length for observation?
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"ASCIIObservation: failed read HDR_VERSION" is a warning that can be ignored, but can also be made to go away by added "HDR_VERSION 1.0" to the ASCII header of your raw data file.
"dedispersion filter length=16384 (minimum=2048) complex samples" is for your information only. It's saying that dspsr chose an optimal FFT length of 16k, but it could do FFTs as small as 2k.
I suppose that the minimum observation length is one FFT (16k samples) ... I've never tried testing this limit!
Cheers,
Willem
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Hi Jānis,
I believe this is because you have not installed psrcat prior to installing psrchive. Please check your psrchive installation, and use the
packages/psrcat.cshscript included in psrchive. Then you will need to configure and install psrchive, and then configuration and install dspsr.Hi Andrew!
Thanks for your help. Your solution worked!
But now I have a different problem.
dspsr B1919+21.00.0000_raw -A -D 12.44 -c 1.337302 -L 10 -O B1919+21._raw.ar.ar
ASCIIObservation: failed read HDR_VERSION
dspsr: Single archive with multiple sub-integrations
dspsr: dedispersion filter length=16384 (minimum=2048) complex samples
dspsr: convolution requires at least 16384 samples
dspsr: blocksize=6710884 samples or 256 MB
itoa_code no alias found for Irbene
dsp::Archiver::finish archive 'B1919+21._raw.ar.ar.ar' with 2 integrations
itoa_code no alias found for Irbene
I am using data recorded at LOFAR station LV614, which could explain itoa_code no alias found for Irbene
But what is causing this "ASCIIObservation: failed read HDR_VERSION"?
About this "dedispersion filter length=16384 (minimum=2048) complex samples"
I understand I need longer observation. What is the minimum length for observation?
Hi Jānis,
"ASCIIObservation: failed read HDR_VERSION" is a warning that can be ignored, but can also be made to go away by added "HDR_VERSION 1.0" to the ASCII header of your raw data file.
"dedispersion filter length=16384 (minimum=2048) complex samples" is for your information only. It's saying that dspsr chose an optimal FFT length of 16k, but it could do FFTs as small as 2k.
I suppose that the minimum observation length is one FFT (16k samples) ... I've never tried testing this limit!
Cheers,
Willem