The two I know for certain are...
Keck telescope and the Gemini North telescope... Subaru may also be looking that night but I don't have much contact with them... If you have further questions I recommend contacting the PR people and I am including my email in the header info on this post... (just delete the 'x' in the address)
This is not an observation I am directly involved with, since it does not require the laser, but it is one I am eagerly awaiting.
