Controlled Mosaic of Enceladus Shahrazad Se 400K 43.5/225 CMN, 2018 GENERAL NOTES 66° 270° West This map sheet is the 4th of a 15-quadrangle series covering the entire surface of Enceladus at a 66° nominal scale of 1: 400 000. This map series is the third version of the Enceladus atlas and 1 180° West supersedes the release from 2010 . The source of map data was the Cassini imaging experiment (Porco et al., 2004)2. Cassini-Huygens is a joint NASA/ESA/ASI mission to explore the Saturnian 260° system. The Cassini spacecraft is the first spacecraft studying the Saturnian system of rings and 190° moons from orbit; it entered Saturnian orbit on July 1st, 2004. The Cassini orbiter has 12 instruments. One of them is the Cassini Imaging Science Subsystem 250° (ISS), consisting of two framing cameras. The narrow angle camera is a reflecting telescope with 200° a focal length of 2000 mm and a field of view of 0.35 degrees. The wide angle camera is a refractor with a focal length of 200 mm and a field of view of 3.5 degrees. Each camera is equipped with a 240° 210° large number of spectral filters which, taken together, span the electromagnetic spectrum from 0.2 60° 230° 220° to 1.1 micrometers. At the heart of each camera is a charged coupled device (CCD) detector 60° consisting of a 1024 square array of pixels, each 12 microns on a side. Sindbad MAP SHEET DESIGNATION Se Enceladus (Saturnian satellite) 400K Scale 1 : 400 000 43.5/225 Center point in degrees consisting of latitude/west longitude CMN Controlled Mosaic with Nomenclature Ajib 2018 Year of publication IMAGE PROCESSING3 - Radiometric correction of the images - Creation of a dense tie point network 50° - Multiple least-square bundle adjustments 50° - Ortho-image mosaicking Shahryar CONTROL For the Cassini mission, spacecraft position and camera pointing data are available in the form of SPICE kernels. SPICE is a data system providing ancillary data such as spacecraft and target Al-Haddar positions, target body size/shape/orientation, spacecraft orientation, and instrument pointing, which is used for planning space science missions and recovering the full value of science instrument Dalilah data returned from missions (http://naif.jpl.nasa.gov/). A 3-D control network was set up to correct errors in the nominal camera pointing data. The network utilized all images in the Cassini ISS CLR (effective wavelength λe = 651 nm), GRN (λe Shahrazad = 569 nm), IR3 (λe = 928 nm), and UV3 (λe = 343 nm) filters with a pixel scale between 50 and 500 m/pixel and a phase angle less than 120°: a total of 586 images. The control network consisted of 10,362 tie points and 173,704 individual image measures, averaging nearly 17 measures per 40° tie point. Least squares bundle adjustment resulted in a root mean square (rms) residual of 0.45 Ishak 40° pixels, corresponding to rms ground point uncertainties of 66 m, 51 m, and 46 m in latitude, longitude, and radius, respectively. The bundle solution yielded independently determined shape information, resulting in radii (a, b, c axis) slight smaller than, but within the stated uncertainty of, IAU values, and a 0.769° shift in the prime meridian offset (W0). Using this geodetic control network, Dunyazad updated pointing kernels for every image were calculated, substantially improving image locations. Additionally, a new global mosaic of Enceladus using the best available data from the mission was created. The longitude system according to Davies and Katayama (1983)4 and adopted by the IAU/IAG (International Astronomical Union/International Association of Geodesy) Working Group on Cartographic Coordinates and Rotational Elements as standard (Archinal et al., 2018)5 is defined by crater Salih at 5° west. MAP PROJECTION Lambert conic conformal projection with two standard parallels at 58°N and 30°N 30° Scale is true at 58°N and 30°N H 30° Adopted figure: sphere Mean radius: 252.1 km A Grid system: planetographic latitude, west longitude S R Harun NOMENCLATURE E Morgiana Names are suggested by the ISS-Camera-Team and approved by the International Astronomical R Union (IAU). For a complete list of IAU-approved names on Enceladus, see the Gazetter of Planetary P Nomenclature at http://planetarynames.wr.usgs.gov/. KAUKABÁN FOSSAE A U REFERENCES N 1 R Roatsch, Th., Kersten, E., Hoffmeister, A., Wählisch, M., Matz, K.-D., Porco, C.C., 2013, Recent 21° improvements of the Saturnian satellites atlases: Mimas, Enceladus, and Dione, Planetary and 21° Space Science, 77, 118-125. 270° West 2 Porco, C.C., West, R.A., Squyres, S., McEwen, A., Thomas, P.C., Murray, C.D., DelGenio, J.A., 180° West Ingersoll, A.P., Johnson, T.V., Neukum, G., Veverka, J., Dones, L., Brahic, A., Burns, J.A., Haemmerle, DIYAR V., Knowles, B., Dawson, D., Roatsch, Th., Beurle, K., Owen, W., 2004, Cassini Imaging Science: S A Instrument Characteristics and Anticipated Scientific Investigations at Saturn, Space Science Review, 115, 363-497. U I 3 Bland, M.T., Becker, T.L., Edmundson, K.L., Patterson, G.W., Roatsch, Th., Takir, D., Collins, L G.C., Pappalardo, R.T., Schenk, P.M., Hare, T.M., A new Enceladus global control network, image R mosaic, and updated pointing kernels from Cassini’s thirteen-year mission, submitted to Earth and 260° PLANITIA C 190° Space Science. A I 4 Davies, M.E. and Katayama, F.Y., 1983, The Control Networks of Mimas and Enceladus, Icarus, 53, 332-340. M 5 Archinal, B.A., Acton, C.H., A’Hearn, M.F., Conrad, A., Consolmagno, G.J., Duxbury, T., Hestroffer, D., Hilton, J.L., Kirk, R.L., Klioner, S.A., McCarthy, D., Meech, K., Oberst, J., Ping, J., Seidelmann, 250° A P.K., Tholen, D.J., Thomas, P.C., Williams, I.P., 2018, Report of the IAU Working Group on Cartogra- 200° phic Coordinates and Rotational Elements: 2015, Celestial Mechanics and Dynamical Astronomy, 130, 3, 22. S Image processing (USGS): Becker, T.L., Bland, M.T. 240° 210° Scale 1:400 000 Cartographic production and design (DLR): Kersten, E., Wählisch, M. 230° 220° 0 10 20 30 40 km EDITOR German Aerospace Center (DLR), Institute of Planetary Research, Roatsch, Th. Please send comments, suggestions, and questions to [email protected]. Index map Se-1 Index of Cassini images Resolution of the images Sindbad Se-5 Se-4 Se-3 Se-2 60° Hamah Sulci Shahrazad Kasim Ali Baba 66° 66° 1 N1487299402 60° m/px 2 N1487299578 60° 15 N1489048550 400 - 500 30° 16 N1489048724 50° 108 93 17 N1489048898 50° 18 N1489049072 300 - 400 Se-10 Se-9 Se-8 Se-7 Se-6 19 Aziz Ebony Dorsum Khusrau Bulak Sulcus Salih 89 107 19 N1489049404 40° 40° 200 - 300 90 17 20 N1489049580 21 N1489049756 360° 330° 300° 270° 240° 210° 180° 150° 120° 90° 60° 30° 0° 1 16 28 N1500059236 150 - 200 0° 30° 21 31 N1500060756 30° 106 44 N1584039815 100 - 150 20 88 N1671592570 44 18 89 N1671592775 21° 2 31 21° 50 - 100 90 N1671592995 28 270° W 93 N1671593640 Se-14 Se-13 Se-12 Se-11 est 180° West <50 -30° Kamar 15 88 106 N1858920340 Cashmere Sulci Hassan Otbah 260° 107 N1858921090 190° 108 N1858923093 250° 200° Phase angle 120° 240° 210° 230° 220° Incidence angle 87° Emission angle 80° -60° Se-15 Damascus Sulcus Se 400K 43.5/225 CMN, 2018 Se-4.