we want to reach our target our target
is a comet the team as expectation from
you every day and you always have to
think I had the user cannot come in the
morning and say what you have to do
today
you're always have to think well I had
been deposited are often presented
doesn't wake up permission will already
be over our fingers are crossed for the
first signal to make it to us as a no
comments to the other on the day of
population exit was high expectation
that we successfully come out of
hibernation when that time in the
morning occurred you think well okay
that's it now we just wait are you wait
for the spacecraft that stopped spinning
22 warm itself up and to get ready to
send this signal
hello everybody and welcome inside the
main control room which is quite
exciting we also get a good view of the
countdown clock here before Rosetta will
wake up requires 45 minutes for the
signal to travel at the speed of life to
come from the spacecraft
there's a big success for everybody now
we got it back now it's up to us to
drive into the government you want to
see this clean peak and that's what we
got we you wait a few more seconds and
you see this clean carrier signal and
that's all you need to know
possums are all we have no idea what is
waiting for us out there
Rosetta will use its navigation camera
as it gradually closes in on its target
comet churyumov-gerasimenko before
shifting to the trajectory that will
finally bring it to its destination then
it will start to orbit the comet map it
and characterize it
this will enable us to search for a
landing site and landfill Lander in
November 2014 in London feeling upset he
lays dead tired finna is the part of the
rosetta mission that will land on a
comet so we will really have the
opportunity to investigate the
primordial dust and ice material on-site
be like for art
you gotta watch yourself in this is what
we're looking at fifty percent of the
comments gonna be made of material like
this we can look at the water on the
ocean of the earth and compare that
ratio to what we find on comets whether
it's like sheet is always more dusty is
possibly this water could have been
delivered to the earth by the Comets
this is why we're going to this comment
to see where that water comes from to
see is it connected to work at all and
that's then connecting to whether we
ourselves are connected to comments
maybe who knows
Braden and filled with this mission with
entering new territory in Berlin we have
built three instruments for this lambda
and then at about the Rollins camera on
the bottom of the lander will acquire
six or seven images that will reach
Earth hours later the movements device
will be hammered into the surface to
measure the thermal properties these
will then be refined using the other
instruments to understand what kind of
environment quick landed on this base
camp is now on a trajectory to the
comment but it doesn't have yet the
right velocity to actually arrive at the
comet and stay there we activate our
thrusters the this small rocket we're
bored and we accelerate the spacecraft
to reach the exact velocity of the
common and we do an acceleration of
about 800 meters per second
thanks a lot of acceleration we start to
see this pin prick in the distance and
then you realize this is reality it's
not a theoretical concept anymore to
real comment we're seeing this this
pinpoint of light getting closer and
closer
it wasn't like this great data that we
first imagined that it was actually much
more interesting appreciated consists of
two parts this double structure was not
expected and we all had the same initial
sort
how will we land on this it hasn't made
things any easier
yeah we don't feel like to end up on its
back like a beetle or crash all these
things are much easier to solve on a
spherical target and on a very rugged
surface with valleys even canyons cliffs
and crevices
these are difficult conditions therefore
we have a ground reference model here at
the lander control center to test all
the sequences over and over again it
takes some time but we have to make sure
that it works the landing sequence will
be started at a specific moment at the
same time the orbiter must adopt a
specific orientation as the lander will
be pushed away from the orbiter as soon
as the Landers feet touch the surface
two harpoons will be fired to Anchorage
that's my middle
to further secure the lander I screws on
the feet will then draw it towards the
surface in your wallet or offices that's
one must prepare as best one can we will
spend the time in characterizing the
coming when the faintest idea of the
gravity potential of the comment the
gravitational forces so we have to
measure them and then with an orbit
development and there we will start
mapping we need to do a very good map to
decide where to land all these we have
to do it before otherwise we're not even
able to discuss about the instability so
it's a massive challenge technologically
but at the same time the reason we're at
this comment is for science
no other reason we're doing this to get
the best size to characterize this comet
as has never been done before
doesn't what will be interesting for the
scientists will be to observe the
changes what the comment does as it
approaches the Sun becomes increasingly
active and starts to outgassing for jet
around the hearts of the Comets surface
are dead and connective nothing is
happening
Donnie and there are some places where
plenty is going on there at the moment
some 500 grams of water per second or
outgassing from the comet closer to the
Sun this will rise to 300 kilograms what
would happen if the lander were to touch
down in one of these places it would
probably not guarantee a long operating
life if we target an active area an area
where there's lots of outgassing
sublimation so lots of material coming
off of the surface it's going to be
difficult to get the land down there
after the island of using a spectable
accessory after considering all the
different aspects of the possible
landing sites we have decided on landing
site J we've also selected an
alternative landing site see on the body
Carper
everything is into complex of dimes
enough anyone following is undertaking
is so complex that a single person would
be overwhelmed by it
it simply isn't manageable is only
possible in large teams you have to get
together and discuss and the good thing
is that they're all great people people
with their feet on the ground who you
can really talk to
it presents particular challenges but
ultimately Rosetta shows you what you
can do by collaborating internationally
it's just great to be here is great to
be involved in this and be involved with
the scientists the guys that are doing
this to be able to interact with people
like that is that's it can imagine how
privileged we feel to be the ones to
have to lend this object on the comet at
the same time you can understand the
level of responsibility that sits on our
lands and our shoulders
we've spent years with the colleagues of
the lander team may lead bullets from
class and DLR to work out strategies to
define them to trade them off to
negotiate them to fit all the
constraints and the objectives were for
this operation face and now we have to
implement it for real time has come to
make it happen
ok
history about the only person around it
doesn't have TV coverage of the things
and then they got the black up now
you're gonna feel better in the morning
TV picture now epic fail yet we are
getting a TV picture children now d-1
all
family
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