<s>
General	B-Application
Mission	I-Application
Analysis	I-Application
Tool	I-Application
(	O
GMAT	O
)	O
is	O
open-source	B-Application
space	O
mission	O
analysis	O
software	O
developed	O
by	O
NASA	O
and	O
private	O
industry	O
.	O
</s>
<s>
GMAT	O
is	O
an	O
open-source	B-Application
alternative	O
to	O
software	O
like	O
Systems	B-Application
Tool	I-Application
Kit	I-Application
and	O
FreeFlyer	B-Application
.	O
</s>
