<s>
Fine	B-Algorithm
Guidance	I-Algorithm
Sensor	I-Algorithm
(	O
FGS	O
)	O
for	O
the	O
Hubble	O
Space	O
Telescope	O
is	O
a	O
system	O
of	O
three	O
instruments	O
used	O
for	O
pointing	O
the	O
telescope	O
in	O
space	O
,	O
and	O
also	O
for	O
astrometry	O
and	O
its	O
related	O
sciences	O
.	O
</s>
<s>
The	O
FGS	O
function	O
in	O
combination	O
with	O
the	O
Hubble	O
main	O
computer	O
and	O
gyroscopes	B-Application
,	O
with	O
the	O
FGS	O
providing	O
data	O
to	O
the	O
computer	O
as	O
sensors	O
which	O
enables	O
the	O
HST	O
to	O
track	O
astronomical	O
targets	O
.	O
</s>
<s>
The	O
smallest	O
Kuiper	O
Belt	O
Object	O
(	O
KBO	O
)	O
yet	O
detected	O
at	O
that	O
time	O
was	O
discovered	O
in	O
2009	O
by	O
poring	O
over	O
data	O
from	O
the	O
Hubble	O
Space	O
Telescope	O
's	O
fine	B-Algorithm
guidance	I-Algorithm
sensors	I-Algorithm
.	O
</s>
