The orbit of comet Tsuchinshan 1977q |
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| Affiliation: | 1. Department of Zoology, University of Calcutta, Kolkata 700019, India;2. Health-Management in Occupational Health, Siemens, India;3. Department of Environmental Science, University of Calcutta, Kolkata 700019, India;1. Hebei Key Laboratory of Optic-Electronic Information and Materials, National & Local Joint Engineering Laboratory of New Energy Photoelectric Devices, College of Physics Science and Technology, Hebei University, Baoding 071002, China;2. Beijing Computing Center, Cloud Computing Key Technologies and Applications Beijing Key Laboratory, Beijing 100094, China;1. School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China;2. School of Computer Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China;1. School of Medicine, University of Utah, 30 N 1900 E, Salt Lake City, UT 84132, United States;2. Division of Plastic Surgery, University of Utah, 30 N 1900 E, Salt Lake City, UT 84132, United States;3. Division of Cardiothoracic Surgery, University of Utah, 30 N 1900 E, Salt Lake City, UT 84132, United States;4. Division of General Surgery, University of Utah, 30 N 1900 E, Salt Lake City, UT 84132, United States;5. Department of Pharmacy Services, University of Utah, 30 N 1900 E, Salt Lake City, UT 84132, United States;6. Division of Plastic Surgery, Division of Health Services Research, University of Utah, 30 N 1900 E, Salt Lake City, UT 84132, United States;7. Critical Care, University of Utah, 30 N 1900 E, Salt Lake City, UT 84132, United States;8. Division of Emergency Medicine, University of Utah, 30 N 1900 E, Salt Lake City, UT 84132, United States |
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| Abstract: | Comet Tsuchinshan (1977q) was discovered at Purple Mountain Observatory on Nov. 3, 1977. The osculating orbital elements (referred to the barycenter of the sun and Mercury) given in table 1 are derived from 42 observations Nov. 3, 1977 to Jan. 10, 1978 at our observatory and abroad, taking into account the perturbations of all major planets. In all the observations the rms residual is 1.″78. Our observations are also published in table 2. With the elements thus obtained, the appropriate ephemerides in recent years have been calculated and listed in table 4. And then, in consideration of accurate perturbations, we compute the original and future orbits (referred to the center of mass of solar system) while the comet is about 60 A. U. from the sun. The results that both the original and future orbits are hyperbolicaare given in table 5 and may be compared with the osculating elements. Nevertheless, the two months observed interval for determining orbit is short. In order to obtain the more reliable conclusion, it is necessary to make some efforts for increasing the observed arc. |
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