Journal of Astronomy and Space Sciences

About Journal of Astronomy and Space Sciences

The Journal of Astronomy and Space Sciences (JASS; J. Astron. Space Sci.) is the official publication of the Korean Space Science Society (KSSS), the most prestigious academic society in space science and space application fields in Korea. JASS is an international journal devoted to the publication of fundamental and applied investigations of all aspects of space-related science and technology. It was launched in 1984 and is published quarterly. Each article published is assigned a unique DOI that serves to identify the article in the digital environment. JASS is an open access journal; consequently, full texts of articles are free for all users to read and use. The papers published in JASS are accessible at the journal homepage (http://janss.kr), DOAJ website as well as at the SAO/NASA ADS website. JASS has been indexed by KCI and SCOPUS since 2007 and 2012, respectively. Also, JASS was re-indexed by DOAJ and newly indexed as ESCI (Emerging Sources Citation Index) by Clarivate Analytics in 2017. This journal is supported in part by a Grant-in-Aid for the publication of scientific research from the Korean Federation of Science and Technology Societies (KOFST).
Review Paper

Mar 31, 2023

Observations for the Ionosphere Using European Incoherent Scatter (EISCAT) in the Dayside Polar Cap/Cusp and Auroral Region

Geonhwa Jee, Eun-Young Ji, Eunsol Kim, Young-Sil Kwak, Changsup Lee, Hyuck-Jin Kwon, Ji-Eun Kim, Young-Bae Ham, Ji-Hee Lee, Jeong-Han Kim, Tae-Yong Yang, Hosik Kam

J. Astron. Space Sci. 2023;40(1):1-10.
https://doi.org/10.5140/JASS.2023.40.1.1

Korea Polar Research Institute (KOPRI) and Korea Astronomy and Space Institute (KASI) have been participating in the European Incoherent Scatter (EISCAT) Scientific Association as an affiliate institution in order to observe the polar ionosphere since 2015. During the period of December 16–21, 2016 and January 3–9, 2018, the observations for the polar ionospheric parameters such as the electron density profiles, ion drift, and electron/ion temperature are carried out in the polar cap/cusp region by the EISCAT Svalbard radar (ESR). The purpo...
Review Paper

Mar 31, 2023

Fundamentals of Numerical Modeling of the Mid-latitude Ionosphere

Geonhwa Jee

J. Astron. Space Sci. 2023;40(1):11-18.
https://doi.org/10.5140/JASS.2023.40.1.11

The ionosphere is one of the key components of the near-Earth’s space environment and has a practical consequence to the human society as a nearest region of the space environment to the Earth. Therefore, it becomes essential to specify and forecast the state of the ionosphere using both the observations and numerical models. In particular, numerical modeling of the ionosphere is a prerequisite not only for better understanding of the physical processes occurring within the ionosphere but also for the specification and forecast of the space w...
Research Paper

Mar 31, 2023

Observation of Three Variable Stars and an Asteroid Using Small Telescopes in the United Arab Emirates (UAE)

Mohammad Sh. Odeh, Mashhoor Al-Wardat

J. Astron. Space Sci. 2023;40(1):19-27.
https://doi.org/10.5140/JASS.2023.40.1.19

We present the results of using small telescopes in the United Arab Emirates (UAE) for observing variable stars and asteroids. Two telescopes, namely, 5” apochromatic refractor and 14” Schmidt-Cassegrain, at Al-Khatim Observatory (M44) were used for the observations. The targets were the three variable stars RR GEM, AG LMi, and DL CMi and the asteroid 22 Kalliope. We found a good consistency between our light curves and published ones for the calibration targets, i.e., the asteroid 22 Kalliope and the variable star RR GEM. According to prev...
Research Paper

Mar 31, 2023

Constant Acceleration in Fractal Structures with Fractal Dimension D = 2

Alexander Yushchenko, Yeuncheol Jeong, Volodymyr Yushchenko, Aizat Demessinova, Kyung Sook Jeong

J. Astron. Space Sci. 2023;40(1):29-33.
https://doi.org/10.5140/JASS.2023.40.1.29

An unexplained acceleration on the order of 10–8 cm s–2, which is close to cH, where c is the speed of light and H is the Hubble constant, is detected in gravitationally bound systems of different scales, from the solar system to clusters of galaxies. We found that any test body located inside a fractal structure with fractal dimension D = 2 experiences acceleration of the same order and confirmed the previous work that photons propagating through this structure decrease the frequency owing to gravitational redshift. The acceleration can be...
Technical Paper

Mar 31, 2023

Design of an Elliptical Orbit for High-Resolution Optical Observation at a Very Low Altitude over the Korean Peninsula

Dongwoo Kim, Taejin Chung

J. Astron. Space Sci. 2023;40(1):35-44.
https://doi.org/10.5140/JASS.2023.40.1.35

Surveillance and reconnaissance intelligence in the space domain will become increasingly important in future battlefield environments. Moreover, to assimilate the military provocations and trends of hostile countries, imagery intelligence of the highest possible resolution is required. There are many methods for improving the resolution of optical satellites when observing the ground, such as designing satellite optical systems with a larger diameter and lowering the operating altitude. In this paper, we propose a method for improving ground o...

CURRENT ISSUE: Mar 2023, Vol. 40, No. 1

Review Paper Observations for the Ionosphere Using European Incoherent Scatter (EISCAT) in the Dayside Polar Cap/Cusp and Auroral Region Geonhwa Jee, Eun-Young Ji, Eunsol Kim, Young-Sil Kwak, Changsup Lee, Hyuck-Jin Kwon, Ji-Eun Kim, Young-Bae Ham, Ji-Hee Lee, Jeong-Han Kim, Tae-Yong Yang, Hosik Kam J. Astron. Space Sci. 2023;40(1):1-10. https://doi.org/10.5140/JASS.2023.40.1.1 HTML PDF PubReader	Review Paper Fundamentals of Numerical Modeling of the Mid-latitude Ionosphere Geonhwa Jee J. Astron. Space Sci. 2023;40(1):11-18. https://doi.org/10.5140/JASS.2023.40.1.11 HTML PDF PubReader
Research Paper Observation of Three Variable Stars and an Asteroid Using Small Telescopes in the United Arab Emirates (UAE) Mohammad Sh. Odeh, Mashhoor Al-Wardat J. Astron. Space Sci. 2023;40(1):19-27. https://doi.org/10.5140/JASS.2023.40.1.19 HTML PDF PubReader	Research Paper Constant Acceleration in Fractal Structures with Fractal Dimension D = 2 Alexander Yushchenko, Yeuncheol Jeong, Volodymyr Yushchenko, Aizat Demessinova, Kyung Sook Jeong J. Astron. Space Sci. 2023;40(1):29-33. https://doi.org/10.5140/JASS.2023.40.1.29 HTML PDF PubReader
Technical Paper Design of an Elliptical Orbit for High-Resolution Optical Observation at a Very Low Altitude over the Korean Peninsula Dongwoo Kim, Taejin Chung J. Astron. Space Sci. 2023;40(1):35-44. https://doi.org/10.5140/JASS.2023.40.1.35 HTML PDF PubReader

MOST READ ARTICLES

Research Paper Storm-Time Behaviour of Meso-Scale Field-Aligned Currents: Case Study with Three Geomagnetic Storm Events Adero Ochieng Awuor, Paul Baki, Joseph Olwendo, Pieter Kotze Journal of Astronomy and Space Sciences 2019;36(3):133-147. https://doi.org/10.5140/JASS.2019.36.3.133 HTML PDF PubReader Last 3 months views: 207	Research Paper Astronomical Instruments with Two Scales Drawn on Their Common Circumference of Rings in the Joseon Dynasty Byeong-Hee Mihn, Goeun Choi, Yong Sam Lee Journal of Astronomy and Space Sciences 2017;34(1):45-54. https://doi.org/10.5140/JASS.2017.34.1.45 HTML PDF PubReader Last 3 months views: 184
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Research Paper Constant Acceleration in Fractal Structures with Fractal Dimension D = 2 Alexander Yushchenko, Yeuncheol Jeong, Volodymyr Yushchenko, Aizat Demessinova, Kyung Sook Jeong J. Astron. Space Sci. 2023;40(1):29-33. https://doi.org/10.5140/JASS.2023.40.1.29 HTML PDF PubReader Last 3 months views: 156	Research Paper Spectral Deconvolution Analysis of Mafic Mineral in Irregular Mare Patches on the Moon Ik-Seon Hong, Yu Yi, Nuri Park Journal of Astronomy and Space Sciences 2022;39(4):127-139. https://doi.org/10.5140/JASS.2022.39.4.127 HTML PDF PubReader Last 3 months views: 154
Research Paper Solar Cyclic Modulation of Diurnal Variation in Cosmic Ray Intensity Eun Ho Park, Jongil Jung, Suyeon Oh, Paul Evenson Journal of Astronomy and Space Sciences 2018;35(4):219-225. https://doi.org/10.5140/JASS.2018.35.4.219 HTML PDF PubReader Last 3 months views: 154	Review Paper Observations for the Ionosphere Using European Incoherent Scatter (EISCAT) in the Dayside Polar Cap/Cusp and Auroral Region Geonhwa Jee, Eun-Young Ji, Eunsol Kim, Young-Sil Kwak, Changsup Lee, Hyuck-Jin Kwon, Ji-Eun Kim, Young-Bae Ham, Ji-Hee Lee, Jeong-Han Kim, Tae-Yong Yang, Hosik Kam J. Astron. Space Sci. 2023;40(1):1-10. https://doi.org/10.5140/JASS.2023.40.1.1 HTML PDF PubReader Last 3 months views: 143

MOST CITED ARTICLES

Research Paper Tomography Reconstruction of Ionospheric Electron Density with Empirical Orthonormal Functions Using Korea GNSS Network Junseok Hong, Yong Ha Kim, Jong-Kyun Chung, Nicholas Ssessanga, Young-Sil Kwak J. Astron. Space Sci. 2017;34(1):7-17. https://doi.org/10.5140/JASS.2017.34.1.7 HTML PDF PubReader Cited by 13	Research Paper Orbit Determination of KOMPSAT-1 and Cryosat-2 Satellites Using Optical Wide-field Patrol Network (OWL-Net) Data with Batch Least Squares Filter Eunji Lee, Sang-Young Park, Bumjoon Shin, Sungki Cho, Eun-Jung Choi, Junghyun Jo, Jang-Hyun Park J. Astron. Space Sci. 2017;34(1):19-30. https://doi.org/10.5140/JASS.2017.34.1.19 HTML PDF PubReader Cited by 6
Research Paper On the Variability of the Ionospheric F2-Layer During the Quietest Days in December 2009 Vitaly P. Kim, Valery V. Hegai J. Astron. Space Sci. 2016;33(4):273-278. https://doi.org/10.5140/JASS.2016.33.4.273 HTML PDF PubReader Cited by 5	Technical Paper Installation of Neutron Monitor at the Jang Bogo Station in Antarctica Jongil Jung, Suyeon Oh, Yu Yi, Paul Evenson, Roger Pyle, Geonhwa Jee, Jeong-Han Kim, Changsup Lee, Jongdae Sohn J. Astron. Space Sci. 2016;33(4):345-348. https://doi.org/10.5140/JASS.2016.33.4.345 HTML PDF PubReader Cited by 5
Technical Paper Computational Science-based Research on Dark Matter at KISTI Kihyeon Cho J. Astron. Space Sci. 2017;34(2):153-159. https://doi.org/10.5140/JASS.2017.34.2.153 HTML PDF PubReader Cited by 5	Technical Paper Development, Demonstration and Validation of the Deep Space Orbit Determination Software Using Lunar Prospector Tracking Data Eunji Lee, Youngkwang Kim, Minsik Kim, Sang-Young Park J. Astron. Space Sci. 2017;34(3):213-223. https://doi.org/10.5140/JASS.2017.34.3.213 HTML PDF PubReader Cited by 4
Research Paper Spatial Configuration of Stars Around Three Metal-poor Globular Clusters in the Galatic Bulge, NGC 6266, NGC 6273, and NGC 6681 : Surface Density Map and Radial Density Profile Mihwa Han, Sang-Hyun Chun, Samyaday Choudhury, Howoo Chiang, Sowon Lee, Young-Jong Sohn J. Astron. Space Sci. 2017;34(2):83-97. https://doi.org/10.5140/JASS.2017.34.2.83 HTML PDF PubReader Cited by 4	Research Paper Pi2 Pulsations During Extremely Quiet Geomagnetic Condition: Van Allen Probe Observations Essam Ghamry J. Astron. Space Sci. 2017;34(2):111-118. https://doi.org/10.5140/JASS.2017.34.2.111 HTML PDF PubReader Cited by 4
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