YVVS means Directorate of Launch Base Operations, DOD Mission Support Division in
NASA
Similar to YVVS
(H) - Hazardous
Task Classification
(S) - Safe
Task Classification
0G - Zero Gravity
2GRLV - 2nd Generation Return to Launch Vehicle
2IC - Second In Command
2M - Micro Miniature
2MASS - Two Micron All-Sky Survey
View all in NASA