It comes after 12 The STS-13 crew, redesignated STS-41-C, created this patch that highlights superstitions and triskaidekaphobia. The STS-13 crew, redesignated STS-41-C, created this patch that highlights superstitions and triskaidekaphobia. Credit: collectSPACE.com Prior to Crew-13, NASA managers leaned into the superstition and devised a less intuitive but more data-driven designation that went into effect after the ninth space shuttle mission. Hence, what would have been STS-13 became STS-41-C, where the 4 was the fiscal year (1984), the 1 was the launch site (Kennedy Space Center in Florida), and C was the order of launch (C was the third planned flight of the year).…