http://www.mrao.cam.ac.uk/~bn204/alma/aatm-dispersive.html
I had not appreciated that even at 330GHz, the dispersive wet delay is about 10% of the non-dispersive wet delay.
http://www.mrao.cam.ac.uk/~bn204/alma/aatm-dispersive.html
I had not appreciated that even at 330GHz, the dispersive wet delay is about 10% of the non-dispersive wet delay.
This work is being documented on the following wiki:
http://wiki.gb.nrao.edu/bin/view/PTCS/OOFHolography
The oof software is available for download at:
http://www.mrao.cam.ac.uk/~bn204/oof/software.html
Finally, as an illustration, below is a map of the GBT surface
re-created from out-of-focus MUSTANG images. Although this particular
observation took of the order of 15 minutes, it is likely we will be
able to reduce this to the order of a couple of minutes, allowing
effective and rapid correction of all gravitation and thermal effects
on the telescope.
http://www.mrao.cam.ac.uk/~bn204/publications/2008/AlgorithmsOxford09.pdf
Almost all of the talks I've given recently are available too:
http://www.mrao.cam.ac.uk/~bn204/publications/publicationlist.html
http://astrowiki.physics.ox.ac.uk/cgi-bin/twiki/view/Algorithms2008/WebHome