Scientific assessment of the quality of OSIRIS images

被引：67

作者：

Tubiana, C. ^{[1
]}

Guettler, C. ^{[1
]}

Kovacs, G. ^{[1
]}

Bertini, I. ^{[2
]}

Bodewits, D. ^{[3
]}

Fornasier, S. ^{[4
]}

Lara, L. ^{[5
]}

La Forgia, F. ^{[2
]}

Magrin, S. ^{[6
]}

Pajola, M. ^{[2
]}

Sierks, H. ^{[1
]}

Barbieri, C. ^{[7
]}

Lamy, P. L. ^{[8
]}

Rodrigo, R. ^{[9
,10
]}

Koschny, D. ^{[11
]}

Rickman, H. ^{[12
,13
]}

Keller, H. U. ^{[14
,15
]}

Agarwal, J. ^{[1
]}

A'Hearn, M. F. ^{[3
]}

Barucci, M. A. ^{[4
]}

Bertaux, J. -L. ^{[16
]}

Besse, S. ^{[2
]}

Boudreault, S. ^{[1
]}

Cremonese, G. ^{[17
]}

Da Deppo, V. ^{[18
]}

Davidsson, B. ^{[12
]}

Debei, S. ^{[19
]}

De Cecco, M. ^{[20
]}

El-Maarry, M. R. ^{[21
]}

Fulle, M. ^{[22
]}

Groussin, O. ^{[8
]}

Gutierrez-Marques, P. ^{[1
]}

Gutierrez, P. J. ^{[5
]}

Hoekzema, N. ^{[1
]}

Hofmann, M. ^{[1
]}

Hviid, S. F. ^{[1
,14
]}

Ip, W. -H. ^{[23
,24
]}

Jorda, L. ^{[8
]}

Knollenberg, J. ^{[14
]}

Kramm, J. -R. ^{[1
]}

Kuehrt, E. ^{[14
]}

Kueppers, M. ^{[25
]}

Lazzarin, M. ^{[7
]}

Lopez Moreno, J. J. ^{[5
]}

Marzari, F. ^{[7
]}

Massironi, M. ^{[2
,26
]}

Michalik, H. ^{[27
]}

Moissl, R. ^{[25
]}

Naletto, G. ^{[2
,18
,28
]}

Oklay, N. ^{[1
]}

机构：

[1] Max Planck Inst Sonnensyst Forsch, D-37077 Gottingen, Germany

[2] Univ Padua, Ctr Ateneo Studi & Att Spaziali Giuseppe Colombo, I-35131 Padua, Italy

[3] Univ Maryland, Dept Astron, College Pk, MD 20742 USA

[4] Univ Paris Diderot, Univ Paris 06, LESIA Observ Paris, CNRS, F-92195 Meudon, France

[5] Inst Astrofis Andalucia CSIC, Granada 18008, Spain

[6] Univ Padua, Dipartimento Fis & Astron, I-35131 Padua, Italy

[7] Univ Padua, Dept Phys & Astron, I-35122 Padua, Italy

[8] Aix Marseille Univ, CNRS, UMR 7326, LAM, F-13388 Marseille, France

[9] CSIC INTA, Ctr Astrobiol, Madrid 28850, Spain

[10] Int Space Sci Inst, CH-3012 Bern, Switzerland

[11] European Space Res & Technol Ctr ESA, Sci Support Off, NL-2201 AZ Noordwijkzh, Netherlands

[12] Uppsala Univ, Dept Phys & Astron, S-75120 Uppsala, Sweden

[13] PAS Space Res Ctr, PL-00716 Warsaw, Poland

[14] Deutsch Zentrum Luft & Raumfahrt DLR, Inst Planetenforsch, D-12489 Berlin, Germany

[15] Tech Univ Carolo Wilhelmina Braunschweig, IGEP, D-38106 Braunschweig, Germany

[16] CNRS UVSQ IPSL, LATMOS, F-78280 Guyancourt, France

[17] Osserv Astron Padova, INAF, I-35122 Padua, Italy

[18] CNR IFN UOS Padova LUXOR, I-35131 Padua, Italy

[19] Univ Padua, Dept Ind Engn, I-35131 Padua, Italy

[20] Univ Trento, I-38123 Trento, Italy

[21] Univ Bern, Inst Phys, CH-3012 Bern, Switzerland

[22] INAF Osservatorio Astron Trieste, I-34014 Trieste, Italy

[23] Natl Cent Univ, Grad Inst Astron, Chungli 32054, Taiwan

[24] Macau Univ Sci & Technol, Space Sci Inst, Macau, Peoples R China

[25] European Space Astron Ctr ESA, Operat Dept, Villanueva De La Canada 28691, Madrid, Spain

[26] Univ Padua, Dipartimento Geosci, I-35131 Padua, Italy

[27] Tech Univ Carolo Wilhelmina Braunschweig, Inst Datentech & Kommunikat Netze, D-38106 Braunschweig, Germany

[28] Univ Padua, Dept Informat Engn, I-35131 Padua, Italy

[29] Univ Bern, Ctr Space & Habitabil, CH-3012 Bern, Switzerland

来源：

ASTRONOMY & ASTROPHYSICS | 2015年 / 583卷

关键词：

instrumentation: detectors; methods: data analysis; space vehicles: instruments; COMET; 67P/CHURYUMOV-GERASIMENKO; CAMERAS ONBOARD;

D O I：

10.1051/0004-6361/201525985

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Context. OSIRIS, the scientific imaging system onboard the ESA Rosetta spacecraft, has been imaging the nucleus of comet 67P/Churyumov-Gerasimenko and its dust and gas environment since March 2014. The images serve different scientific goals, from morphology and composition studies of the nucleus surface, to the motion and trajectories of dust grains, the general structure of the dust coma, the morphology and intensity of jets, gas distribution, mass loss, and dust and gas production rates. Aims. We present the calibration of the raw images taken by OSIRIS and address the accuracy that we can expect in our scientific results based on the accuracy of the calibration steps that we have performed. Methods. We describe the pipeline that has been developed to automatically calibrate the OSIRIS images. Through a series of steps, radiometrically calibrated and distortion corrected images are produced and can be used for scientific studies. Calibration campaigns were run on the ground before launch and throughout the years in flight to determine the parameters that are used to calibrate the images and to verify their evolution with time. We describe how these parameters were determined and we address their accuracy. Results. We provide a guideline to the level of trust that can be put into the various studies performed with OSIRIS images, based on the accuracy of the image calibration.

引用

页数：9

共 19 条

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