Published in Icarus
We present a set of rotational lightcurve measurements of the small main belt Asteroid 3169 Ostro. Our observations reveal an unambiguous, double-peaked rotational lightcurve with a peak-to-peak variation up to 1.2±0.05 mag and a synodic period of 6.509±0.001 h. From the large flux variation and the overall shape of the lightcurves, we suggest that...
Published in Icarus
Near-infrared and mid-infrared observations of the site of the 2009 July 19 impact of an unknown object with Jupiter were obtained within days of the event. The observations were used to assess the properties of a particulate debris field, elevated temperatures, and the extent of ammonia gas redistributed from the troposphere into Jupiter s stratos...
Published in Icarus
Published in Icarus
Published in Icarus
Published in Icarus
Published in Icarus
Ritchey crater is a∼ 79 km diameter complex crater near the boundary between Hesperian ridged plains and Noachian highland terrain on Mars (28.8 S, 309.0 E) that formed after the Noachian. High Resolution Imaging Science Experiment (HiRISE) images of the central peak reveal fractured massive bedrock and megabreccia with large clasts. Compact Reconn...
Published in Icarus
We detected a volcanic outburst in Io s northern hemisphere on 17 April 2006 with the OSIRIS imaging spectrometer at Keck, and confirmed it was still erupting on 2 June 2006. The eruption, which we name 060417A, was located in Tvashtar Paterae,∼ 100 km southeast of the February 2000 eruption. The observed temperature was 1240±4K, over a surface are...
Published in Icarus
Published in Icarus
Aegaeon (Saturn LIII, S/2008 S1) is a small satellite of Saturn that orbits within a bright arc of material near the inner edge of Saturn s G-ring. This object was observed in 21 images with Cassini s Narrow-Angle Camera between June 15 (DOY 166), 2007 and February 20 (DOY 051), 2009. If Aegaeon has similar surface scattering properties as other ne...
