Academic Journal
Visibility Analysis of Domestic Satellites on Proposed Ground Sites for Optical Surveillance
| العنوان: | Visibility Analysis of Domestic Satellites on Proposed Ground Sites for Optical Surveillance |
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| المؤلفون: | Jung Hyun Jo1, Jin Choi, Hong-Kyu Moon, Young-Jun Choi, Hong-Suh Yim, Jang-Hyun Park, Eun-Seo Park, Jong-Uk Park |
| المصدر: | Journal of Astronomy and Space Sciences, Vol 28, Iss 4, Pp 319-332 (2011) |
| بيانات النشر: | The Korean Space Science Society |
| سنة النشر: | 2011 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | optical surveillance, visibility analysis, dawn-dusk orbit, sun-synchronous orbit, ground track analysis, domestic satellites, Astronomy, QB1-991 |
| الوصف: | The objectives of this study are to analyze the satellite visibility at the randomly established ground sites, to determine the five optimal ground sites to perform the optical surveillance and tracking of domestic satellites, and to verify the acquisition of the optical observation time sufficient to maintain the precise ephemeris at optimal ground sites that have been already determined. In order to accomplish these objectives, we analyzed the visibility for sun-synchronous orbit satellites, low earth orbit satellites, middle earth orbit satellites and domestic satellites as well as the continuous visibility along with the fictitious satellite ground track, and calculate the effective visibility. For the analysis, we carried out a series of repetitive process using the satellite tool kit simulation software developed by Analytical Graphics Incorporated. The lighting states of the penumbra and direct sun were set as the key constraints of the optical observation. The minimum of the observation satellite elevation angle was set to be 20 degree, whereas the maximum of the sun elevation angle was set to be -10 degree which is within the range of the nautical twilight. To select the candidates for the optimal optical observation, the entire globe was divided into 84 sectors in a constant interval, the visibility characteristics of the individual sectors were analyzed, and 17 ground sites were arbitrarily selected and analyzed further. Finally, five optimal ground sites (Khurel Togoot Observatory, Assy-Turgen Observatory, Tubitak National Observatory, Bisdee Tier Optical Astronomy Observatory, and South Africa Astronomical Observatory) were determined. The total observation period was decided as one year. To examine the seasonal variation, the simulation was performed for the period of three days or less with respect to spring, summer, fall and winter. In conclusion, we decided the optimal ground sites to perform the optical surveillance and tracking of domestic satellites and verified that optical observation time ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 2093-5587 2093-1409 |
| Relation: | http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2011/v28n4/OJOOBS_2011_v28n4_319.pdf; https://doaj.org/toc/2093-5587; https://doaj.org/toc/2093-1409; https://doaj.org/article/05e8b56821c048ff82766d05d9c34d47 |
| DOI: | 10.5140/JASS.2011.28.4.319 |
| الاتاحة: | https://doi.org/10.5140/JASS.2011.28.4.319 https://doaj.org/article/05e8b56821c048ff82766d05d9c34d47 |
| رقم الانضمام: | edsbas.BD5DE80F |
| قاعدة البيانات: | BASE |
| تدمد: | 20935587 20931409 |
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| DOI: | 10.5140/JASS.2011.28.4.319 |