[evlatests] Correctness of Switched Power Corrections
Vivek Dhawan
vdhawan at nrao.edu
Tue Apr 3 16:22:35 EDT 2012
1. The reference pointing and switched power issues are orthogonal, though
both affect the flux accuracy.
2. Any observation that does include a flux calibrator can be used as a test,
in AIPS and now in CASA. Skeptics and believers alike can try it.
3. I agree that we are not ready to dispense with flux calibrator scans for
general users.
Claire Chandler wrote:
> Hi Rick,
>
> The flux density runs are observed in a very special way, with frequent
> reference pointing scans. I would like to see an analysis of the accuracy
> obtained by just applying the switched power corrections for more standard
> observations, with reference pointing done every 40-45 mins for the
> target/phase calibrator.
>
> Until we understand the accuracy this gives we should not tell any users
> that they can get by without observing a flux density calibrator.
>
> Claire
>
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