This delay may take up to three days because as Deputy Science Minister Cho Yul-Lae said that a helium leak would require the carrier to be removed from the launch pad and return to the assembly facility, but they would also need time for preparation before they try to launch it again.
Officials are still not sure when it would be rescheduled, but they have until mid-November to send a rocket up and have the satellite reach its destination.
They have had two previous failures one in 2009, a satellite separated just a few seconds behind schedule and it missed the orbital trajectory. Then in 2010 a rocket that was launched exploded two minutes after it was launched, just before leaving the atmosphere. If they do not do this launch on time or have another failure it will affect their chances of joining an elite space club that include China, Japan, and India. They need this successful launch this year.