[Gb-ccb] CCB first light

Tony Readhead acr at astro.caltech.edu
Thu Nov 10 08:46:01 EST 2005



Fantastic!!

This is a very impressive "first light".

the ccb is clearly working well - congratulations to ALL!!

we are much looking forward to doing a lot of science with NRAO pundits 
with this system, and I am confident that you will have a lot of users!

Best regards,

Tony


On Wed, 9 Nov 2005, Brian Mason wrote:

>
> hi all- we had some software test time tonight and at the end I got in a 
> quick peak scan with the GBT+CCB! First light screenshot from the CLEO 
> real-time display is attached, warts and all. The plot is a time series as we 
> scan across the source in azimuth (then back again), then ditto in elevation. 
> The quantity plotted is switched power and we are looking at the "negative" 
> beam. The fuzz at the start of the first source crossing is because I had 
> forgotten to enable CCB control of the beam switching signals in the Ka 
> receiver (so the receiver wasn't actually switching though CCB thought it 
> was) and then fixed it. The weather was poor -- heavy clouds and occasional 
> light rain. The source was 2253+1608 (~5 Jy @ 30 GHz).
>
> We still have a fair list of things to sort out and analysis to do to 
> determine how close we've come to our goals, but this is a big milestone-- 
> congrats (again) to all!
>
>  Brian
>
>
> --------------------------------------------------------------------
> Brian Mason                           | office: +1(304)456-2338
> Associate Scientist                   | fax:    +1(304)456-2229
> National Radio Astronomy Observatory  | mail:   PO Box 2 bmason at gb.nrao.edu 
> |         Green Bank, WV 24944
> http://www.gb.nrao.edu/~bmason/       |
> --------------------------------------------------------------------



More information about the gb-ccb mailing list