Please allow sufficient time for all files to download the first time you access NASA SkyWatch. You will be downloading approximately 300 K of data, which can take three minutes or more on a 33.6 kbps modem connection. Significantly more time will be required (more than 10 minutes) with a 14.4 kbps connection. Many files reside in the Internet cache on your hard drive and do not have to be downloaded again unless you clear the cache.