The launch is scheduled for 30 April from Cape Canaveral and launch complex 40 at 9:22 AM Phoenix time (1622 UTC). The mission is designed to satisfy both the Commercial Orbital Transportation Services program (COTS) level 2 and 3 requirements. Officially, the mission will be successful if it satisfies the COTS 2 requirements. All of us hope that both sets of requirements will be met, and the Dragon will deliver its cargo to the ISS.
The Dragon is the only spacecraft with down mass capability other than the crewed Soyuz spacecraft. The Russian Progress, European Space Agency (ESA) ATV and Japanese Space Exploration Agency (JAXA) HTV all burn up upon re-entry. The up mass and down mass manifest for Dragon include:
SpaceX is on track for a 30 April (Monday) launch of the Dragon spacecraft to the International Space Station, according to a detailed Flight Readiness Review (FRR) meeting between NASA and SpaceX officials met Monday (16 April) at Johnson Space Center in Houston. The mission is to fulfill both the Commercial Orbital Transportation Services (COTS) 2 and 3 requirements. Dragon is expected to deliver more than 1,200 pounds of supplies, if it is successful.
An FRR is standard part of all NASA pre-launch preparations. Bill Gerstenmaier, NASA’s associate administrator for Human Exploration and Operations said:
NASA Television launch commentary from Cape Canaveral will begin at 8 AM Phoenix time (1500 UTC). There is a single instantaneous launch opportunity at 9:22 AM Phoenix time (1622 UTC).
The mission is composed of two sets of requirements. COTS 2 (see the slide above) deals with communicating and flying in the vicinity (but not too close, about 1.5 miles) of the International Space Station. The COTS 3 requirements concern the Dragon executing safety maneuvers (abort, retreat, hold), and eventually docking with the ISS when grappled by Canadarm.
Below are details of the Mission.
Additional NASA TV Coverage: