LV-322 or LV426

Well i guess this is one for the people that notice little things, but i thought i saw on the screen when prometheus arrived at the planet it read LV-322 and not LV-426 which we all know is the planet where "Alien" takes place? Maybe i saw it wrong because it is only on the screen for a split second and i don't think they mention it on what planet they are for the rest of the movie. A friend of mine who went to a different theatre noticed it too. So did anybody else see this little detail or are we mistaken?? It would explain why some of the things that happen in the movie do not match what the crew find in "Alien"( Space Jockey in his seat with a hole in his chest).