inrri-edm/2016: the first laser retroreflector …...exomars 2016 edm overview in the frame of the...
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INRRI-EDM/2016:
THE FIRST LASER RETROREFLECTOR PAYLOAD ON MARS
G. Delle Monache(1), S. Dell’Agnello(1), R. Vittori(2), L. Porcelli (1), M. Tibuzzi(1), A. Boni (1),
N. Intaglietta(1), L. Salvatori(1), P. Tuscano(1), E. Ciocci(1), M. Martini(1), S. Contessa(1), G. Patrizi(1),
c. Mondaini(1), C. Lops (1), M. Maiello(1), G. Bianco(3), C. Cantone(1).
1 INFN-LNF, Italy
2 INFN-LNF, ESA, Aeronautica Militare Italiana
3 ASI-CGS, Italy
13/11/2015 12015 ILRS Technical Workshop Matera
13/11/2015 2015 ILRS Technical Workshop Matera Giovanni O. Delle Monache et. al 2
Outline
1. INRRI overview
2. ExoMars EDM overview
3. INRRI qualification campaign for ExoMars EDM mission
13/11/2015 2015 ILRS Technical Workshop Matera Giovanni O. Delle Monache et. al 3
INRRI OVERVIEW
Laser Altimetry
Lidar atmospheric observation
Laser ranging
Laser flashes emitted by orbiters
INRRI will enable the ExoMars 2016 EDM to be laser-located from
Mars orbiters through one, or more, of the following means:
Supported Science:
Mars Geodesy/Geophysics
Mars GR
Lidar atmosphere trace species
13/11/2015 2015 ILRS Technical Workshop Matera Giovanni O. Delle Monache et. al 4
INRRI OVERVIEW
First-ever laser retroreflector on Mars and beyond the Moon
INRRI: INstrument for landing-Roving laser Retroreflector Investigations
13/11/2015 2015 ILRS Technical Workshop Matera Giovanni O. Delle Monache et. al 5
ExoMars 2016 EDM OVERVIEW
In the frame of the ExoMars Programme, the Entry Descent and
Landing (EDL) Demonstrator Module (EDM) is the entry vehicle
conceived to demonstrate the capability of the European
industry to perform a controlled landing on the surface of Mars.
The EDM is composed by three main
elements:
- the Back Shell;
- the EDM Surface Platform (Lander);
- the Front Shield.
FRONT SHIELDFRONT SHIELD
BACK SHELLBACK SHELL
13/11/2015 2015 ILRS Technical Workshop Matera Giovanni O. Delle Monache et. al 6
INRRI ON ExoMars 2016 EDM OVERVIEW
The array is set on a bracket intended to increase the reflectors
field of view for orbiting lasers
INRRIINRRI
BASE PLATEBASE PLATE
OMEGA BRACKETOMEGA BRACKET
EDM CENTRAL BAYEDM CENTRAL BAY
13/11/2015 2015 ILRS Technical Workshop Matera Giovanni O. Delle Monache et. al 7
INRRI-EDM/2016 Qualification Program
The INRRI article foresees a bonding process that has not been
qualified for such mission profile, for this reason a full campaign
has been required from ESA on a Proto Flight Model with the
following tests sequence:
•Quasi-Static load
•“Peel” test on each CCR
•TVT
•Dynamic load: random, sine & shock
•“Peel” test repeated
•Mass loss check
•(FFDP)
ALL TESTS, EXCEPTED DYNAMIC, PERFORMED AT INFN SCF_LAB
13/11/2015 2015 ILRS Technical Workshop Matera Giovanni O. Delle Monache et. al 8
QUASI-STATIC LOAD &“PEEL” TEST
A mass simulating 60 g has been set on each CCR face to check
that ultimate performances are not reached. A standard peel
test (determining the ultimate load) can not be performed on a
PFM, so the test aims to determine differences in elastic
properties before and after TVT and dynamic tests
13/11/2015 2015 ILRS Technical Workshop Matera Giovanni O. Delle Monache et. al 9
Thermal Vacuum Test
On a PFM only 4 cycles are requested/allowed.
Tmin =-115 °C
Tmax = 50 °C
tdwell = 2h
13/11/2015 2015 ILRS Technical Workshop Matera Giovanni O. Delle Monache et. al 10
Thermal Vacuum Test
Tricky set up of the thermometers to check for radiation to LN2
shields biasing the measurement
13/11/2015 2015 ILRS Technical Workshop Matera Giovanni O. Delle Monache et. al 11
RANDOM TEST Y-AXIS
13/11/2015 2015 ILRS Technical Workshop Matera Giovanni O. Delle Monache et. al 12
TEST PASS FAIL CRITERIA Z-AXIS
No resonance shift observed before and after the test
13/11/2015 2015 ILRS Technical Workshop Matera Giovanni O. Delle Monache et. al 13
SHOCK LOAD Z-AXIS SET UP
13/11/2015 2015 ILRS Technical Workshop Matera Giovanni O. Delle Monache et. al 14
SPARE
"Why don't you speak to me?!"
13/11/2015 2015 ILRS Technical Workshop Matera Giovanni O. Delle Monache et. al 15
INRRI microreflector for MarsINRRI$2020:"
INstrument"for"landing1Roving"laser"Retroreflector"Inves5ga5ons"
on"
Mars+2020+
15
for NASA Mars 2020
ESA
ExoMars
2018
25 grams
Smaller than a computer mouse
13/11/2015 2015 ILRS Technical Workshop Matera Giovanni O. Delle Monache et. al 16
INRRI INTEGRATION ON EDM
16
INRRI got the “go-ahead” from ESA on October 13th and was
integrated on EDM a day later, heading to the Red Planet in
March 2016!
13/11/2015 2015 ILRS Technical Workshop Matera Giovanni O. Delle Monache et. al 17
Thanks for your attention!
Questions?
INRRI-EDM/2016: the First Laser Retroreflector Payload on Mars
dellemon@lnf.infn.it
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