SEOUL, South Korea — New satellite images indicate that snow may have slowed North Korea's rocket launch preparations, but that Pyongyang could still be ready for liftoff starting Monday.

South Korean media reports this week quoted unnamed officials in Seoul as saying North Korea had mounted all three stages of the Unha rocket on the launch pad by Wednesday. But snow may have prevented Pyongyang from finishing its work by then, according to GeoEye satellite images from Tuesday that were scrutinized by analysts for the websites 38 North and North Korea Tech and shared Friday with The Associated Press.

The analysis and images provide an unusually detailed public look at North Korea's cloaked preparations for a launch that the United Nations, Washington, Seoul and others say is a cover for a test of technology for a missile that could be used to target the United States.