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Proceedings Paper • Open Access

PILOT optical alignment
Author(s): B. Mot; G. Roudil; Y. Longval; P. Ade; Y. André; J. Aumont; L. Baustista; J. -P. Bernard; N. Bray; P. de Bernardis; O. Boulade; F. Bousquet; M. Bouzit; V. Buttice; A. Caillat; M. Charra; M. Chaigneau; B. Crane; J. -P. Crussaire; F. Douchin; E. Doumayrou; J. -P. Dubois; C. Engel; P. Etcheto; P. Gélot; M. Griffin; G. Foenard; S. Grabarnik; P. Hargrave; A. Hughes; R. Laureijs; Y. Lepennec; B. Leriche; S. Maestre; B. Maffei; J. Martignac; C. Marty; W. Marty; S. Masi; F. Mirc; R. Misawa; J. Montel; L. Montier; J. Narbonne; J. -P. Nicot; F. Pajot; G. Parot; E. Pérot; J. Pimentao; G. Pisano; N. Ponthieu; I. Ristorcelli; L. Rodriguez; M. Salatino; G. Savini; O. Simonella; M. Saccoccio; P. Tapie; J. Tauber; J. -P. Torre; C. Tucker

Paper Abstract

PILOT (Polarized Instrument for Long wavelength Observations of the Tenuous interstellar medium) is a balloonborne astronomy experiment designed to study the polarization of dust emission in the diffuse interstellar medium in our Galaxy. The PILOT instrument allows observations at wavelengths 240 μm and 550 μm with an angular resolution of about two arcminutes. The observations performed during the two first flights performed from Timmins, Ontario Canada, and from Alice-springs, Australia, respectively in September 2015 and in April 2017 have demonstrated the good performances of the instrument. Pilot optics is composed of an off axis Gregorian type telescope combined with a refractive re-imager system. All optical elements, except the primary mirror, which is at ambient temperature, are inside a cryostat and cooled down to 3K. The whole optical system is aligned on ground at room temperature using dedicated means and procedures in order to keep the tight requirements on the focus position and ensure the instrument optical performances during the various phases of a flight. We’ll present the optical performances and the firsts results obtained during the two first flight campaigns. The talk describes the system analysis, the alignment methods, and finally the inflight performances.

Paper Details

Date Published: 12 July 2019
PDF: 6 pages
Proc. SPIE 11180, International Conference on Space Optics — ICSO 2018, 111806Z (12 July 2019); doi: 10.1117/12.2536170
Show Author Affiliations
B. Mot, Institut de Recherche en Astrophysique et Planétologie (France)
G. Roudil, Institut de Recherche en Astrophysique et Planétologie (France)
Y. Longval, Institut d'Astrophysique Spatiale (France)
P. Ade, Cardiff Univ. (United Kingdom)
Y. André, Ctr. National d'Études Spatiales (France)
J. Aumont, Institut de Recherche en Astrophysique et Planétologie (France)
L. Baustista, Ctr. National d'Études Spatiales (France)
J. -P. Bernard, Institut de Recherche en Astrophysique et Planétologie (France)
N. Bray, Ctr. National d'Études Spatiales (France)
P. de Bernardis, Univ. degli studi di Roma (Italy)
O. Boulade, CEA-Saclay (France)
F. Bousquet, Ctr. National d'Études Spatiales (France)
M. Bouzit, Institut d'Astrophysique Spatiale (France)
V. Buttice, Institut d'Astrophysique Spatiale (France)
A. Caillat, Institut d'Astrophysique Spatiale (France)
M. Charra, Institut d'Astrophysique Spatiale (France)
M. Chaigneau, Institut d'Astrophysique Spatiale (France)
B. Crane, Institut d'Astrophysique Spatiale (France)
J. -P. Crussaire, Institut d'Astrophysique Spatiale (France)
F. Douchin, Ctr. National d'Études Spatiales (France)
E. Doumayrou, CEA-Saclay (France)
J. -P. Dubois, Institut d'Astrophysique Spatiale (France)
C. Engel, Institut de Recherche en Astrophysique et Planétologie (France)
P. Etcheto, Ctr. National d'Études Spatiales (France)
P. Gélot, Ctr. National d'Études Spatiales (France)
M. Griffin, Cardiff Univ. (United Kingdom)
G. Foenard, Institut de Recherche en Astrophysique et Planétologie (France)
S. Grabarnik, European Space Research and Technology Ctr. (Netherlands)
P. Hargrave, Cardiff Univ. (United Kingdom)
A. Hughes, Institut de Recherche en Astrophysique et Planétologie (France)
R. Laureijs, European Space Research and Technology Ctr. (Netherlands)
Y. Lepennec, CEA-Saclay (France)
B. Leriche, Institut d'Astrophysique Spatiale (France)
S. Maestre, Institut de Recherche en Astrophysique et Planétologie (France)
B. Maffei, Institut d'Astrophysique Spatiale (France)
J. Martignac, CEA-Saclay (France)
C. Marty, Institut de Recherche en Astrophysique et Planétologie (France)
W. Marty, Institut de Recherche en Astrophysique et Planétologie (France)
S. Masi, Sapienza Univ. di Roma (Italy)
F. Mirc, Ctr. National d'Études Spatiales (France)
R. Misawa, Institut de Recherche en Astrophysique et Planétologie (France)
J. Montel, Ctr. National d'Études Spatiales (France)
L. Montier, Institut de Recherche en Astrophysique et Planétologie (France)
J. Narbonne, Institut de Recherche en Astrophysique et Planétologie (France)
J. -P. Nicot, Ctr. National d'Études Spatiales (France)
F. Pajot, Institut de Recherche en Astrophysique et Planétologie (France)
G. Parot, Ctr. National d'Études Spatiales (France)
E. Pérot, Thales Services (France)
J. Pimentao, Univ. degli studi di Roma (Italy)
G. Pisano, Institut d’Astrophysique Spatiale, Univ. Paris-Sud, Univ. Paris-Saclay, CNRS (France)
N. Ponthieu, Institut de Planétologie et d’Astrophysique de Grenoble (France)
I. Ristorcelli, Institut de Recherche en Astrophysique et Planétologie (France)
L. Rodriguez, CEA-Saclay (France)
M. Salatino, Univ. degli Studi di Roma (Italy)
G. Savini, Cardiff Univ. (United Kingdom)
O. Simonella, Ctr. National d'Études Spatiales (France)
M. Saccoccio, Ctr. National d'Études Spatiales (France)
P. Tapie, Ctr. National d'Études Spatiales (France)
J. Tauber, European Space Research and Technology Ctr. (Netherlands)
J. -P. Torre, Institut d’Astrophysique Spatiale, Univ. Paris-Sud, Univ. Paris-Saclay, CNRS (France)
C. Tucker, Cardiff Univ. (United Kingdom)


Published in SPIE Proceedings Vol. 11180:
International Conference on Space Optics — ICSO 2018
Zoran Sodnik; Nikos Karafolas; Bruno Cugny, Editor(s)

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