xmm 10 years in orbit - how we built it
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XMM, 10 Years in Orbit
How we built it
Uwe Minne, 20.01.2010
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We had to face several challenges
to build three times 58 gold-coated nested mirrors including baffles to suppress visible and x-ray stray light
solved by an outstanding ESA-Prime contractor cooperation and a company (MediaLario).
Mayor steps to build the mirrors
- manufacturing of 58 mandrels- lay down a gold reflecting surface on the mandrels- back it with Nickel-layer- ease off the mandrel
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20.01.2010
reached by an AOCS, specially designed for XMM and by the selection of suitable materials
- AOCS was the only Subsystem in XMM
- in today’s projects these AOCS-Performances are state of the art
Narrow pointing accuracy and stability requirements
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The size of 10,8 m
Consequence of the Focal length of 7,5m
The clean room in Friedrichshafen had to be modified.
Transport to Kourou was by ship.
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The scheduleThe critical path analysis revealed:LLI procurement & Manufacturing of FMs are on the critical path>> ITTs for those Units were released 1 month after KO
Subcontractor Selection Process
XMM-Newton was our first project which follows “ESA Best Practice Approach”.
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XMM essential dates
05. Oct. 1994 Kick-off in Immenstaad for Phase B
Beg. Nov. 1994 First ITTs submitted to potential Subs
21. March 1996 C/D Contract signed in Paris
27. March 1996 C/D Kick off in Überlingen
09.-23.Sept. 1999 Ship-Transport to Kourou
05. Oct. 1999 FAR Presentation in Überlingen
10. Dec. 1999 Launch with Ariane V (V119)
31. March 2000 End of Commissioning-Phase
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icat
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third
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ties
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reem
ent.
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20.01.2010
C/D Contract signed in Paris
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doc
umen
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icat
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third
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ties
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reem
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20.01.2010
XMM Phase C/D Kick-off
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umen
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icat
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with
out p
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ritte
n ag
reem
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20.01.2010
Flight Acceptance Review
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doc
umen
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erty
of A
striu
m. I
t sha
ll no
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com
mun
icat
ed to
third
par
ties
with
out p
rior w
ritte
n ag
reem
ent.
Its c
onte
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hall
not b
e di
sclo
sed.
20.01.2010
Flight Acceptance Review
This
doc
umen
t is
the
prop
erty
of A
striu
m. I
t sha
ll no
t be
com
mun
icat
ed to
third
par
ties
with
out p
rior w
ritte
n ag
reem
ent.
Its c
onte
nt s
hall
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e di
sclo
sed.
20.01.2010
XMM on top of Ariane
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doc
umen
t is
the
prop
erty
of A
striu
m. I
t sha
ll no
t be
com
mun
icat
ed to
third
par
ties
with
out p
rior w
ritte
n ag
reem
ent.
Its c
onte
nt s
hall
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e di
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20.01.2010
The price
linked to the schedule: if the schedule is met, the price-target is met as well
underspent for in house target underspent for subcontractor envelope
“No Games!”
This Project-Philosophy was highly appreciated by the Prime!
This
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umen
t is
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erty
of A
striu
m. I
t sha
ll no
t be
com
mun
icat
ed to
third
par
ties
with
out p
rior w
ritte
n ag
reem
ent.
Its c
onte
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20.01.2010
Conclusion
Why was XMM so successful?
- excellent cooperation of all parties involved
- concentration of the important issues
This
doc
umen
t is
the
prop
erty
of A
striu
m. I
t sha
ll no
t be
com
mun
icat
ed to
third
par
ties
with
out p
rior w
ritte
n ag
reem
ent.
Its c
onte
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hall
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e di
sclo
sed.
20.01.2010
Launch at
15:32 MEZ
Thanks to ESOC that our Baby was treated so carefully over ten Years