The shape, topography, and geology of Tempel 1 from Deep Impact observations

Thomas, P. C.; Veverka, J.; Belton, M. J. S.; Hidy, Alan J.; A’Hearn, Michael F.; Farnham, T. L.; Groussin, O.; Li, Jian‐Yang; McFadden, L. A.; Sunshine, J. M.; Wellnitz, D. D.; Lisse, C. M.; Schultz, P. H.; Meech, К. J.; Delamere, W. A.

doi:10.1016/j.icarus.2006.12.029

Cited by 37 publications

(78 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We emphasize that we make full usage of the Thomas et al (2007) shape model throughout this paper, e.g., when working with Eq. (10).…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

“…Fig. 2 The surface of Comet 9P/Tempel 1 consists of several types of terrain, which led Thomas et al (2007) to define various morphological units based on their visible appearance. In Fig.…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

“…2 we show a cartoon based on Fig. 8B of Thomas et al (2007), where the boundaries for seven morphological units have been reproduced, here labeled 1-7 for simplicity. Units 1 and 5 constitute so-called thin layers terrain, units 2 and 6 are smooth terrain, units 3 and 7 are scarped/pitted terrain, while unit 4 is thick layers terrain.…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

“…• .6} (with an uncertainty of 5 • ) obtained by Thomas et al (2007). The rotational period P was measured by Belton et al (2006).…”

Section: {293mentioning

confidence: 99%

“…(6)-(11) contains a number of parameters which are considered to be known (Belton et al 2006;Thomas et al 2007;), according to 200 ≤ I ≤ 800 (resolution 100), 1000 ≤ I ≤ 3500 (resolution 500), i.e., 40800 models in total.…”

mentioning

confidence: 99%

See 4 more Smart Citations

Physical properties of morphological units on Comet 9P/Tempel 1 derived from near-IR Deep Impact spectra

Davidsson

Gutiérrez

Rickman

2009

Icarus

View full text Add to dashboard Cite

In this paper we analyze near-infrared thermal emission spectra of the spatially resolved nucleus of Comet 9P/Tempel 1 obtained by the NASA spacecraft Deep Impact. Maps of spectral reddening, the product X between the beaming function and directional emissivity, as well as surface temperature are constructed. Thermophysical modeling is used to estimate the degree of small scale surface roughness and thermal inertia by detailed reproduction of the Surface variations in reddening, roughness, thermal inertia, composition and/or grain size are moderately to strongly correlated to the locations of morphological units on the surface.The existence of morphological units with differing physical properties may be primordial, hence reflecting a diversity in the building block cometesimals, or resulting from evolutionary processes.

show abstract

“…We emphasize that we make full usage of the Thomas et al (2007) shape model throughout this paper, e.g., when working with Eq. (10).…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

Section: Accepted M Manuscriptmentioning

confidence: 99%

Section: Accepted M Manuscriptmentioning

confidence: 99%

“…• .6} (with an uncertainty of 5 • ) obtained by Thomas et al (2007). The rotational period P was measured by Belton et al (2006).…”

Section: {293mentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Physical properties of morphological units on Comet 9P/Tempel 1 derived from near-IR Deep Impact spectra

Davidsson

Gutiérrez

Rickman

2009

Icarus

View full text Add to dashboard Cite

show abstract

Small Body Landings Using Autonomous Onboard Optical Navigation

et al. 2011

View full text Add to dashboard Cite

Spacecraft landings on small bodies (asteroids and comets) present special challenges from a navigation perspective as the size of the bodies is relatively small, with the resultant accuracy requirement to target landing areas fairly tight. Because the accuracies obtainable from ground-based navigation processes may not be sufficient, onboard navigation techniques are needed. Recent developments in deep space navigation capability include a self-contained autonomous navigation system (used in flight on three missions) and a landmark tracking system (used experimentally on the Japanese Hayabusa mission). The merging of these two technologies forms a methodology to perform autonomous onboard navigation around small bodies. This article presents an overview of these systems, as well as the results from Monte Carlo studies to quantify the achievable landing accuracies by using these methods. Two cases are presented, a landing on a small asteroid and on a mid-size comet.

show abstract

Report of the IAU/IAG Working Group on cartographic coordinates and rotational elements: 2006

Seidelmann

Archinal

A’Hearn

et al. 2007

Celestial Mech Dyn Astr

249

168

View full text Add to dashboard Cite

Every three years the IAU/IAG Working Group on Cartographic Coordinates and Rotational Elements revises tables giving the directions of the poles of rotation and the prime meridians of the planets, satellites, minor planets, and comets. This report introduces improved values for the pole and rotation rate of Pluto, Charon, and Phoebe, the pole of Jupiter, the sizes and shapes of Saturn satellites and Charon, and the poles, rotation rates, and sizes of some minor planets and comets. A high precision realization for the pole and rotation rate of the Moon is provided. The expression for the Sun's rotation has been changed to be consistent with the planets and to account for light travel time

show abstract

The shape, topography, and geology of Tempel 1 from Deep Impact observations

Cited by 37 publications

References 20 publications

Physical properties of morphological units on Comet 9P/Tempel 1 derived from near-IR Deep Impact spectra

Physical properties of morphological units on Comet 9P/Tempel 1 derived from near-IR Deep Impact spectra

Small Body Landings Using Autonomous Onboard Optical Navigation

Report of the IAU/IAG Working Group on cartographic coordinates and rotational elements: 2006

Contact Info

Product

Resources

About