The global meter-level shape model of comet 67P/Churyumov-Gerasimenko
- Preusker, F.
- Scholten, F.
- Matz, K. -.D.
- Roatsch, T.
- Hviid, S. F.
- Mottola, S.
- Knollenberg, J.
- KÃ1⁄4hrt, E.
- Pajola, M.
- Oklay, N.
- Vincent, J. -.B.
- Davidsson, B.
- A'Hearn, M. F.
- Agarwal, J.
- Barbieri, C.
- Barucci, M. A.
- Bertaux, J. -.L.
- Bertini, I.
- Cremonese, G.
- Da Deppo, V.
- Debei, S.
- De Cecco, M.
- Fornasier, S.
- Fulle, M.
- Groussin, O.
- Gutiérrez, P. J.
- GÃ1⁄4ttler, C.
- Ip, W. -.H.
- Jorda, L.
- Keller, H. U.
- Koschny, D.
- Kramm, J. R.
- KÃ1⁄4ppers, M.
- Lamy, P.
- Lara, L. M.
- Lazzarin, M.
- Lopez Moreno, J. J.
- Marzari, F.
- Massironi, M.
- Naletto, G.
- Rickman, H.
- Rodrigo, R.
- Sierks, H.
- Thomas, N.
- Tubiana, C.
DOIAbstract
We performed a stereo-photogrammetric (SPG) analysis of more than 1500 Rosetta/OSIRIS NAC images of comet 67P/Churyumov-Gerasimenko (67P). The images with pixel scales in the range 0.2-3.0 m/pixel were acquired between August 2014 and February 2016. We finally derived a global high-resolution 3D description of 67P's surface, the SPG SHAP7 shape model. It consists of about 44 million facets (1-1.5 m horizontal sampling) and a typical vertical accuracy at the decimeter scale. Although some images were taken after perihelion, the SPG SHAP7 shape model can be considered a pre-periheliondescription and replaces the previous SPG SHAP4S shape model. From the new shape model, some measures for 67P with very low 3σ uncertainties can be retrieved: 18...
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