| Presentation | 2011-12-13 Estimation for Ballistic Coefficient of a Nano-Satellite HAYATO (KSAT) from Trajectory Data(JC-SAT 2011) Harunobu YOSHITAKE, Yasunori GOZAWA, Toshinori KIMURA, Masanori NISHIO, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The ballistic coefficients of a nono-satellite at low altitude of less than 300 km are estimated from variations of satellite trajectories. The satellite analyzed is HAYATO (KSAT), which was developed by a collaboration of Kagoshima University and local venture companies and was launched on May 20, 2010 UT as a piggy-back satellite of H-IIA 17. After deployment at 300 km, the satellite rapidly decreased its altitude due to strong atmospheric drag and re-entered the atmosphere on mid July, 2010. A mean value of estimated ballistic coefficients is 3.22×10^<-2>m^2/kg with a maximum of 6.78×10^<-2>m^2/kg and a minimum of 1.12×10^<-2>m^2/kg during entire period from the deployment to the re-entry of the satellite. The mean value is relatively large comparing with a theoretical B value of 2.31×10^<-2>m^2/kg given with typical satellite parameters. We have analyzed the influence of the exospheric temperature and the space environment to the estimated ballistic coefficient, but found no clear relation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Nano-Satellite / KSAT / Atmospheric Drag / Ballistic Coefficient |
| Paper # | SAT2011-56 |
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| Committee | SAT |
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| Conference Date | 2011/12/5(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Satellite Telecommunications (SAT) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Estimation for Ballistic Coefficient of a Nano-Satellite HAYATO (KSAT) from Trajectory Data(JC-SAT 2011) |
| Sub Title (in English) | |
| Keyword(1) | Nano-Satellite |
| Keyword(2) | KSAT |
| Keyword(3) | Atmospheric Drag |
| Keyword(4) | Ballistic Coefficient |
| 1st Author's Name | Harunobu YOSHITAKE |
| 1st Author's Affiliation | Graduate School of Science and Engineering, Kagoshima University() |
| 2nd Author's Name | Yasunori GOZAWA |
| 2nd Author's Affiliation | Graduate School of Science and Engineering, Kagoshima University |
| 3rd Author's Name | Toshinori KIMURA |
| 3rd Author's Affiliation | Graduate School of Science and Engineering, Kagoshima University |
| 4th Author's Name | Masanori NISHIO |
| 4th Author's Affiliation | Graduate School of Science and Engineering, Kagoshima University |
| Date | 2011-12-13 |
| Paper # | SAT2011-56 |
| Volume (vol) | vol.111 |
| Number (no) | 336 |
| Page | pp.pp.- |
| #Pages | 4 |
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