DOI QR코드

DOI QR Code

Visibility Analysis of Domestic Satellites on Proposed Ground Sites for Optical Surveillance

  • Received : 2011.08.03
  • Accepted : 2011.08.31
  • Published : 2011.12.15

Abstract

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 sufficient to maintain the precise ephemeris could be acquired at the determined observatories.

Keywords

References

  1. Jo JH, 2011, private communication.
  2. Kim C-H, Shin J-S, Park P-H, Kim T-H, Lee B-S, et al., A Study on the Computer Programs for the Tracking and Position Predictions of Artificial Satellites, Ministry of Science and Technology, MOST/N8613, 39-63 (1987).
  3. Kim J-H, OWL-Net System Requirement Analysis Document, Observation Feasibility Analysis of Dawn-dusk satellites, OWL-TR-SYSTEM-110405-01-KJH (2011a).
  4. Kim J-H, OWL-Net System Requirement Analysis Document, Visibility Analysis of Satellites on Selected Ground Sites, OWL-TR-SYSTEM-110405-08-KJH (2011b).
  5. King-Hele D, Observing Earth Satellites (Macmillian, London, 1983), 1-184.
  6. Moon H-K, OWL-Net System Requirement Analysis Document, Documentary Survey of Overseas Observational Sites, OWL-TN-ST-110207-01-MHK (2011).
  7. Pearlman MR, Degnan JJ, Bosworth JM, The international laser ranging service, AdSpR, 30, 135-143 (2002). http://dx.doi.org/10.1016/S0273-1177(02)00277-6

Cited by

  1. Analysis of a Simulated Optical GSO Survey Observation for the Effective Maintenance of the Catalogued Satellites and the Orbit Determination Strategy vol.32, pp.3, 2015, https://doi.org/10.5140/JASS.2015.32.3.237
  2. Characteristics of Orbit Determination with Short-Arc Observation by an Optical Tracking Network, OWL-Net vol.2018, pp.1687-5974, 2018, https://doi.org/10.1155/2018/2837301