Dear all,
A question about bootstrapping calibration tables. I notice that in the CABB era we use mfboot and gpboot to calibrate the secundary calibrators. I'm currently working on pre-CABB data, but the manuals confuse me a bit. I have been working with the Jess O'Brien spectral lines tutorial for IC5052 as my guide. In that tutorial she makes no mention of those two tasks. Using Google I stumbled on some pages by people who are using bootstrapping in their data.
So my question is: Do I need to bootstrap my secundary calibrator to the primary using one or both of these tasks?
Thanks!
Pre-CABB bootstrapping
Moderator: Mark.Wieringa
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Re: Pre-CABB bootstrapping
Hi Stephan,
It depends on the frequency of your observations.
At low frequency you should use gpboot to scale the calibration with the secondary back to the flux scale of the primary (1934-638)
If you used a planet for flux calibration (at high frequency) you should use mfboot.
At low freq mfboot is less important for pre-CABB data, but can be run as well - it fixes the spectral slope.
Cheers,
Mark
It depends on the frequency of your observations.
At low frequency you should use gpboot to scale the calibration with the secondary back to the flux scale of the primary (1934-638)
If you used a planet for flux calibration (at high frequency) you should use mfboot.
At low freq mfboot is less important for pre-CABB data, but can be run as well - it fixes the spectral slope.
Cheers,
Mark
Re: Pre-CABB bootstrapping
Hi Mark,
Sorry, forgot to mention that. It's the 21cm line.
Thanks for the advice. I'll run pgboot over my secundary.
Cheers,
Stephan
Sorry, forgot to mention that. It's the 21cm line.
Thanks for the advice. I'll run pgboot over my secundary.
Cheers,
Stephan