The first stage booster that launched NASA's TESS spacecraft is being reused for CRS-15. CAPE CANAVERAL, Fla. -- With the rocket's static fire successfully concluded, SpaceX appears to be on track for an early-morning launch of the company's 15th operational mission to resupply the International Space Station--CRS-15. The weather forecast currently calls for a 90 percent of favorable conditions for the instantaneous window, which opens at 5:41 a.m. EDT (09:41 GMT) on June 29, 2018, at Cape Canaveral Air Force Station's Space Launch Complex 40 (SLC-40) in Florida. The mission, designated Commercial Resupply Services 15 (CRS-15), is expected to deliver more than 5,900 pounds (2,676 kilograms) of supplies, hardware, and research equipment to the orbiting outpost. Among its manifest, SpaceX's Dragon capsule is set to deliver an estimated 661 pounds (300 kilograms) under the auspices of the ISS' U.S. National Laboratory flight allotment.