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analysis:spacecraft
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analysis:spacecraft [2019/11/26 00:41] Guifre |
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| - | ===== Spacecraft tracking activities ===== | ||
| - | |||
| - | 1. Observational setup | ||
| - | 2. Data processing | ||
| - | |||
| - | Required software: | ||
| - | |||
| - | <WRAP center round box 60%> | ||
| - | * Makekey[[https://github.com/gpikkio/MakeKey|1]] | ||
| - | * SWspec [[https://bitbucket.org/spacevlbi/swspec/src/master/|2]] | ||
| - | * Spec analysis tools [[https://bitbucket.org/gofrito/sctrackanalysis/src/master/|3]] | ||
| - | </WRAP> | ||
| - | |||
| - | ==== 1. Observational setup ==== | ||
| - | |||
| - | ==== 2. Data processing ==== | ||
| - | |||
| - | The pipeline to retrieve the Doppler and residual phase can be summarised as: | ||
| - | |||
| - | {{:analysis:sc_pipeline_ma.png?500|}} | ||
| - | |||
| - | In therms of software the data processing is summarised in 3 steps: \\ | ||
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| - | <WRAP center round box 60%> | ||
| - | 1- Running the software spectrometer to see the spectrum of the signal recorded (**SWspec**) \\ | ||
| - | 2- Making a first estimate of the pcal measurements (**calculatePcalCpp**) \\ | ||
| - | 3- Running the tracking software (**SCtracker**) \\ | ||
| - | </WRAP> | ||
| - | |||
| - | === Running Software Spectrometer (SWspec) === | ||
| - | It takes the raw VLBI data, reads any desired channel and performes a high-resolution integrated-time FFT of the entrie scan. It uses an initial settings file (inifile.ini). I usually store the inifile.ini in the same folder with the results. There are several settings that can be modified. However, the main ones are: | ||
| - | |||
| - | <WRAP center round important 60%> | ||
| - | UseFile1Channel = 1 \\ | ||
| - | BaseFilename1 = m190522_Hb_VDIF_If000A_%fftpoints%pt_%integrtime%s_ch%channel%\\ | ||
| - | Notes: \\ | ||
| - | # Change then channel value from 1 to 8, one per channel \\ | ||
| - | # Change IF000A to A/B/C/D/E/F to cover all boards \\ | ||
| - | </WRAP> | ||
| - | |||
| - | We run the program by executing this line: | ||
| - | |||
| - | > **swspectrometer inifile.ini /mnt/vbsPcal/m0000_Hb_No0001a.vdif** | ||
/home/www/auscope/opswiki/data/attic/analysis/spacecraft.1574728889.txt.gz · Last modified: 2019/11/26 00:41 by Guifre
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