NASA has cleared SpaceX to perform its resupply mission to the International Space Station (ISS) despite a glitch in a backup computer.

SpaceX's third unmanned cargo re-stocking flight has been delayed several times due to technical issues, a rocket contamination concern and a problem with a radar system. Reuters reported the unmanned Dragon Spacecraft is set to launch with its Falcon 9 rocket Monday at 4:58 p.m. from Cape Canaveral in Fla.

Both SpaceX (watch here) and NASA TV (watch here) are offering viewers a chance to watch the launch live online.

NASA contracted SpaceX to fly 12 resupply missions for an estimated $1.6 billion. The space agency also has a similar contract with Orbital Sciences, another privately owned space company.

Mark Suffredini, NASA's space station program manager, told reporters Sunday "we're good to go." He included NASA feels "a certain amount of urgency" to fly this load of cargo to the ISS. Monday's haul includes food, repair pieces for spacesuits and scientific equipment for experiments, including two legs for a humanoid robot. If the Dragon spacecraft takes off on schedule, it should reach the ISS Wednesday.

"Things start to bunch up," Suffredini said, according to the Associated Press, "and so we're just trying to fly as soon as we safely can, which is what we believe we're doing."

He said a spacewalk will be necessary to replace the glitch detected in the backup computer. NASA was able to put some repair pieces aboard the Dragon spacecraft before Monday's launch. The spacewalk will occur April 22 and two astronauts will carry it out, though Suffredini did not say who.

It will be important for the Dragon spacecraft to arrive ahead of the spacewalk since the crewmembers need to make a crucial spacesuit repair. During the last spacewalk, an Italian astronaut experienced a leak in his suit's cooling system that could have very well turned into a catastrophe.