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and Jezero crater 14. Here we use high-resolution data from the Mars Reconnaissance Orbiter (MRO) to identify clay-rich fluvial–lacustrine sediments within Jezero crater, which has a diameter of 45 km. The crater is an open lake basin on Mars with sedimentary deposits of hydrous minerals sourced from a smectite-rich catchment in the Nili Fossae region. We(More)
Introduction: Localization of Spirit and Opportunity Rovers and landing site topographic information are of fundamental importance to understanding where the rovers traversed and where and how to get the vehicles to new locations [1]. During the Mars Exploration Rover (MER) mission, The Ohio State University (OSU) team, collaborating with JPL and other(More)
Introduction: Engineering constraints developed for the Mars Exploration Rovers (MER), their translation into ~185 potential landing sites and their down-selection to 6 high priority science sites have been described [1, 2]. These 6 sites (Meridiani-previously referred to as Hematite, Gusev, Isidis, Melas, Eos, and Athabasca) were evaluated in detail as to(More)
[1] This paper summarizes Spirit Rover operations in the Columbia Hills, Gusev crater, from sol 1410 (start of the third winter campaign) to sol 2169 (when extrication attempts from Troy stopped to winterize the vehicle) and provides an overview of key scientific results. The third winter campaign took advantage of parking on the northern slope of Home(More)
Keywords: Mars surface Mars climate Mars polar geology Image processing a b s t r a c t The High Resolution Imaging Science Experiment (HiRISE) on the Mars Reconnaissance Orbiter (MRO) acquired 8 terapixels of data in 9137 images of Mars between October 2006 and December 2008, covering $0.55% of the surface. Images are typically 5–6 km wide with 3-color(More)
INTRODUCTION Images from the High Resolution Imaging Science Experiment (HiRISE) on the Mars Reconnaissance Orbiter (MRO) (McEwen et al., 2007) at ~26−52 cm/pixel scales reveal a sequence of exposed impact megabreccia and sedimentary units in Holden crater in Margaritifer Terra, Mars (26°S, 326°E, 154 km diameter; Fig. 1). A lower light-toned sedimentary(More)
[1] By sol 440, the Spirit rover has traversed a distance of 3.76 km (actual distance traveled instead of odometry). Localization of the lander and the rover along the traverse has been successfully performed at the Gusev crater landing site. We localized the lander in the Gusev crater using two-way Doppler radio positioning and cartographic triangulations(More)
Gusev crater was selected as the landing site for the Spirit rover because of the possibility that it once held a lake. Thus one of the rover's tasks was to search for evidence of lake sediments. However, the plains at the landing site were found to be covered by a regolith composed of olivine-rich basaltic rock and windblown 'global' dust. The analyses of(More)
[1] This paper summarizes the Spirit rover operations in the Columbia Hills of Gusev Crater from sols 513 to 1476 and provides an overview of selected findings that focus on synergistic use of the Athena Payload and comparisons to orbital data. Results include discovery of outcrops (Voltaire) on Husband Hill that are interpreted to be altered impact melt(More)