November 30 7:30 p.m. - Expedition 21 Soyuz TMA-15 Farewells and Hatch Closure (Hatch closure scheduled at 7:50 p.m.) 10:30 p.m. - Expedition 21 Soyuz TMA-15 Undocking from ISS (Undocking scheduled at 10:53 p.m.) - JSC DecemberDecember 1 1…