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Your search keyword '"Yeomans, D. K."' showing total 25 results
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25 results on '"Yeomans, D. K."'

1. The Rubble-Pile Asteroid Itokawa as Observed by Hayabusa

Author

Fujiwara, A., Kawaguchi, J., Yeomans, D. K., Abe, M., Mukai, T., Okada, T., Saito, J., Yano, H., Yoshikawa, M., Scheeres, D. J., Barnouin-Jha, O., Cheng, A. F., Demura, H., Gaskell, R. W., Hirata, N., Ikeda, H., Kominato, T., Miyamoto, H., Nakamura, A. M., Nakamura, R., Sasaki, S., and Uesugi, K.

Published
2006

2. Deep Impact: Excavating Comet Tempel 1

Author

Belton, M. J. S., Delamere, W. A., Kissel, J., Klaasen, K. P., McFadden, L. A., Meech, K. J., Melosh, H. J., Schultz, P. H., Sunshine, J. M., Thomas, P. C., Veverka, J., Yeomans, D. K., Baca, M. W., Busko, I., Crockett, C. J., Collins, S. M., Desnoyer, M., Eberhardy, C. A., Ernst, C. M., Farnham, T. L., Feaga, L., Groussin, O., Hampton, D., Ipatov, S. I., Lindler, D., Lisse, C. M., Mastrodemos, N., Owen, W. M., Richardson, J. E., Wellnitz, D. D., and White, R. L.

Published
2005

3. Imaging of Small-Scale Features on 433 Eros from NEAR: Evidence for a Complex Regolith

Author

Veverka, J., Thomas, P. C., Robinson, M., Murchie, S., Chapman, C., Bell, M., Harch, A., Merline, W. J., Bell, J. F., Bussey, B., Carcich, B., Cheng, A., Clark, B., Domingue, D., Dunham, D., Farquhar, R., Gaffey, M. J., Hawkins, E., Izenberg, N., Joseph, J., Kirk, R., Li, H., Lucey, P., Malin, M., McFadden, L., Miller, J. K., Owen, W. M., Peterson, C., Prockter, L., Warren, J., Wellnitz, D., Williams, B. G., and Yeomans, D. K.

Published
2001

5. NEAR at Eros: Imaging and Spectral Results

Author

Veverka, J., Robinson, M., Thomas, P., Murchie, S., Bell, J. F., Izenberg, N., Chapman, C., Harch, A., Bell, M., Carcich, B., Cheng, A., Clark, B., Domingue, D., Dunham, D., Farquhar, R., Gaffey, M. J., Hawkins, E., Joseph, J., Kirk, R., Li, H., Lucey, P., Malin, M., Martin, P., McFadden, L., Merline, W. J., Miller, J. K., Owen, W. M., Peterson, C., Prockter, L., Warren, J., Wellnitz, D., Williams, B. G., and Yeomans, D. K.

Published
2000

8. Exposed Water Ice Deposits on the Surface of Comet 9P/Tempel 1

Author

Sunshine, J. M., Groussin, O., Belton, M. J. S., Delamere, W. A., Kissel, J., Klaasen, K. P., McFadden, L. A., Meech, K. J., Melosh, H. J., Schultz, P. H., Thomas, P. C., Veverka, J., Yeomans, D. K., Busko, I. C., Desnoyer, M., Farnham, T. L., Feaga, L. M., Hampton, D. L., Lindler, D. J., Lisse, C. M., and Wellnitz, D. D.

Published
2006

9. Imaging of Asteroid 433 Eros During NEAR's Flyby Reconnaissance

Author

Veverka, J., Thomas, P. C., Bell, J. F., Bell, M., Carcich, B., Clark, B., Harch, A., Joseph, J., Martin, P., Robinson, M., Murchie, S., Izenberg, N., Hawkins, E., Warren, J., Farquhar, R., Cheng, A., Dunham, D., Chapman, C., Merline, W. J., McFadden, L., Wellnitz, D., Malin, M., Owen, W. M., Miller, J. K., Williams, B. G., and Yeomans, D. K.

Published
1999

10. Hubble Space Telescope Observations of Comet P/Shoemaker-Levy 9 (1993e)

Author

Weaver, H. A., Feldman, P. D., Arpigny, C., Brown, R. A., Helin, E. F., Levy, D. H., Marsden, B. G., Meech, K. J., Larson, S. M., Noll, K. S., Scotti, J. V., Sekanina, Z., Shoemaker, C. S., Shoemaker, E. M., Smith, T. E., Storrs, A. D., Yeomans, D. K., and Zellner, B.

Published
1994

11. The Hubble Space Telescope (HST) Observing Campaign on Comet Shoemaker- Levy 9

Author

Weaver, H. A., Arpigny, C., Boice, D. C., Feldman, P. D., Larson, S. M., Lamy, P., Levy, D. H., Marsden, B. G., Meech, K. J., Noll, K. S., Scotti, J. V., Sekanina, Z., Shoemaker, C. S., Shoemaker, E. M., Smith, T. E., Stern, S. A., Storrs, A. D., Trauger, J. T., Yeomans, D. K., and Zellner, B.

Published
1995

12. Deep Impact: Excavating Comet Tempel 1

Author

A'Hearn, M. F., Belton, M. J. S., Delamere, W. A., Kissel, J., Klaasen, K. P., McFadden, L. A., Meech, K. J., Melosh, H. J., Schultz, P. H., Sunshine, J. M., Thomas, P. C., Veverka, J., Yeomans, D. K., Baca, M. W., Busko, I., Crockett, C. J., Collins, S. M., Desnoyer, M., Eberhardy, C. A., Ernst, C. M., Farnham, T. L., Feaga, L., Groussin, O., Hampton, D., Ipatov, S. I., Li, J.-Y., Lindler, D., Lisse, C. M., Mastrodemos, N., Owen, W. M., Jr., Richardson, J. E., Wellnitz, D. D., and White, R. L.

Published
2005

14. Radar Detection of Phobos

Author

Ostro, S. J., Jurgens, R. F., Yeomans, D. K., Standish, E. M., and Greiner, W.

Published
1989

23. Committee for Small Body Nomenclature.

Author

Kilmartin, Pam M., Tichá, Jana, A'Hearn, M. F., Aksnes, K., Fernández, J., Kilmartin, P. M., Kozai, Y., Lazzaro, D., Marsden, B. G., Schmadel, L. D., Shor, V. A., Tichá, J., West, R. M., Williams, G. V., Williams, I. P., Yeomans, D. K., Zhu, J., and Green, D. W. E.

Abstract

As for comets 619 comets received names from July 2002 to June 2005. Of this naming 76 percent are SOHO comets and 11 percent include the name of the LINEAR project. A revision of the guidelines for naming comets has been completed in March 2003. The assistance of the director of CBAT, Daniel W. E. Green, in redrafting these guidelines was much appreciated by the committee. [ABSTRACT FROM PUBLISHER]

Published
2005
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25. Determination of Shape, Gravity, and Rotational State of Asteroid 433 Eros

Author

Miller, J. K., Konopliv, A. S., Antreasian, P. G., Bordi, J. J., Chesley, S., Helfrich, C. E., Owen, W. M., Wang, T. C., Williams, B. G., Yeomans, D. K., and Scheeres, D. J.

Subjects
*EROS (Asteroid), *SPACE exploration, *ASTEROID orbits
Abstract

Prior to the Near Earth Asteroid Rendezvous (NEAR) mission, little was known about Eros except for its orbit, spin rate, and pole orientation, which could be determined from ground-based telescope observations. Radar bounce data provided a rough estimate of the shape of Eros. On December 23, 1998, after an engine misfire, the NEAR-Shoemaker spacecraft flew by Eros on a high-velocity trajectory that provided a brief glimpse of Eros and allowed for an estimate of the asteroid''s pole, prime meridian, and mass. This new information, when combined with the ground-based observations, provided good a priori estimates for processing data in the orbit phase.After a one-year delay, NEAR orbit operations began when the spacecraft was successfully inserted into a 320×360 km orbit about Eros on February 14, 2000. Since that time, the NEAR spacecraft was in many different types of orbits where radiometric tracking data, optical images, and NEAR laser rangefinder (NLR) data allowed a determination of the shape, gravity, and rotational state of Eros. The NLR data, collected predominantly from the 50-km orbit, together with landmark tracking from the optical data, have been processed to determine a 24th degree and order shape model. Radiometric tracking data and optical landmark data were used in a separate orbit determination process. As part of this latter process, the spherical harmonic gravity field of Eros was primarily determined from the 10 days in the 35-km orbit. Estimates for the gravity field of Eros were made as high as degree and order 15, but the coefficients are determined relative to their uncertainty only up to degree and order 10. The differences between the measured gravity field and one determined from a constant density shape model are detected relative to their uncertainty only to degree and order 6. The offset between the center of figure and the center of mass is only about 30 m, indicating that Eros has a very uniform density (1% variation) on a large scale (35 km). Variations to degree and order 6 (about 6 km) may be partly explained by the existence of a 100-m, regolith or by small internal density variations. The best estimates for the J2000 right ascension and declination of the pole of Eros are α=11.3692±0.003° and δ=17.2273±0.006°. The rotation rate of Eros is 1639.38922±0.00015°/day, which gives a rotation period of 5.27025547 h. No wobble greater than 0.02° has been detected. Solar gravity gradient torques would introduce a wobble of at most 0.001°. [Copyright &y& Elsevier]

Published
2002
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