Cell service is spotty in that area. It can get quite cold so you’ll want extra layers and some hand warmers. Please be considerate of people on the astronomy field and watch for stray light, or walking in front of telescopes, you may ruin someone’s images. If you’re planning on taking any pictures please familiarize yourself with your equipment and figure out how to take a photo without flash before hand. You won’t make any friends if you’re they person setting off a flash in the middle of the night.