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 the fields of space science and space applications in Korea. JASS is an international journal devoted to the publication of fundamental and applied investigations in all aspects of spacerelated 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, the full texts of articles are free for all users to read and use. The papers published in JASS are accessible on the journal homepage (http://janss.kr), the DOAJ website, and the SAO/NASA ADS website. JASS has been indexed by KCI and SCOPUS since 2007 and 2012, respectively. Additionally, JASS was re-indexed by DOAJ and newly indexed in the 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 15, 2025

Challenges to Space Activities in the Context of Mega Satellite Constellations: A Focus on Environmental Impacts

Sheer Abbas

J. Astron. Space Sci. 2025;42(1):1-13.
https://doi.org/10.5140/JASS.2025.42.1.1

The advent of low Earth orbit (LEO) mega satellite constellations to accelerate high-speed internet worldwide represents a new technological advancement. However, this development raises concerns regarding militarization, orbital debris, environmental protection, and their effects on space tourism. Despite these challenges, existing space law treaties have not addressed these issues. This article highlights the gaps in current treaties and emphasizes the need for advancements to mitigate emerging challenges and ensure long-term solutions. This ...
Research Paper

Mar 15, 2025

Development of Anisotropic Magnetoresistive (AMR) Sensor Module for the Magnetic Field Instrument of Lunar Lander

Juhyeong Kim, Ho Jin, Young-jun Choi, Hyeonhu Park, Yunho Jang, Seungmin Lee, Hyeonji Kang, Wooin Jo

J. Astron. Space Sci. 2025;42(1):15-27.
https://doi.org/10.5140/JASS.2025.42.1.15

The mission-assisting anisotropic magnetoresistive sensor (MAMS) module is one of the components supporting the operation of the lunar surface magnetometer (LSMAG), one of the Korean candidate payloads for the Commercial Lunar Payload Services (CLPS) program. LSMAG uses fluxgate magnetometers (FGMs), which have a 0.2 nT resolution and ± 2,000 nT measurement range. For the scientific analysis of LSMAG data, four types of additional mission-assisting functions are required: strong magnetic field measurement, lander noise detection, offset cali...
Research Paper

Mar 15, 2025

Trends of Solar, Interplanetary, and Geomagnetic Parameters during the Recent Five Solar Cycles

Myunghwan Kim, Suyeon Oh

J. Astron. Space Sci. 2025;42(1):29-37.
https://doi.org/10.5140/JASS.2025.42.1.29

This study examined the variations of solar, interplanetary, and geomagnetic (SIG) parameters from 1974 to 2024 to assess the changes in the solar cycle. Eleven SIG parameters were analyzed, including the sunspot number (SSN), solar magnetic field, 10.7 cm solar radio flux, total solar irradiance, and Ap index. This study also aimed to predict Solar Cycle 25 using the seasonal autoregressive integrated moving average (SARIMA) statistical forecasting model. The results showed that consistent with previous studies, all SIG parameters exhibited a ...

CURRENT ISSUE: Mar 2025, Vol. 42, No. 1

Review Paper Challenges to Space Activities in the Context of Mega Satellite Constellations: A Focus on Environmental Impacts Sheer Abbas J. Astron. Space Sci. 2025;42(1):1-13. https://doi.org/10.5140/JASS.2025.42.1.1 HTML PDF PubReader	Research Paper Development of Anisotropic Magnetoresistive (AMR) Sensor Module for the Magnetic Field Instrument of Lunar Lander Juhyeong Kim, Ho Jin, Young-jun Choi, Hyeonhu Park, Yunho Jang, Seungmin Lee, Hyeonji Kang, Wooin Jo J. Astron. Space Sci. 2025;42(1):15-27. https://doi.org/10.5140/JASS.2025.42.1.15 HTML PDF PubReader
Research Paper Trends of Solar, Interplanetary, and Geomagnetic Parameters during the Recent Five Solar Cycles Myunghwan Kim, Suyeon Oh J. Astron. Space Sci. 2025;42(1):29-37. https://doi.org/10.5140/JASS.2025.42.1.29 HTML PDF PubReader

MOST READ ARTICLES

Research Paper Observational Overview of the May 2024 G5-Level Geomagnetic Storm: From Solar Eruptions to Terrestrial Consequences Young-Sil Kwak, Jeong-Heon Kim, Sujin Kim, Yukinaga Miyashita, Taeyong Yang, Sung-Hong Park, Eun-Kyung Lim, Jongil Jung, Hosik Kam, Jaewook Lee, Hwanhee Lee, Ji-Hyun Yoo, Haein Lee, Ryun-Young Kwon, Jungjoon Seough, Uk-Won Nam, Woo Kyoung Lee, Junseok Hong, Jongdae Sohn, Jaeyoung Kwak, Hannah Kwak, Rok-Soon Kim, Yeon-Han Kim, Kyung-Suk Cho, Jaeheung Park, Jaejin Lee, Hoang Ngoc Huy Nguyen, Madeeha Talha J. Astron. Space Sci. 2024;41(3):171-194. https://doi.org/10.5140/JASS.2024.41.3.171 HTML PDF PubReader Last 3 months views: 1916	Research Paper A Study on Re-entry Predictions of Uncontrolled Space Objects for Space Situational Awareness Eun-Jung Choi, Sungki Cho, Deok-Jin Lee, Siwoo Kim, Jung Hyun Jo Journal of Astronomy and Space Sciences 2017;34(4):289-302. https://doi.org/10.5140/JASS.2017.34.4.289 HTML PDF PubReader Last 3 months views: 1701
Review Paper Review of Space Debris Modeling Methods and Development Direction of the Korean Space Debris Models Jinsung Lee, Hangyeol Kim, Eun Jung Choi, Jin Choi, Jiwoong Yu, Junghyun Jo, Jaemyung Ahn J. Astron. Space Sci. 2024;41(4):209-223. https://doi.org/10.5140/JASS.2024.41.4.209 HTML PDF PubReader Last 3 months views: 1639	Technical Paper Geostationary Satellite Station Keeping Robustness to Loss of Ground Control Hyung Je Woo, Bjorn Buckwalter Journal of Astronomy and Space Sciences 2021;38(1):65-82. https://doi.org/10.5140/JASS.2021.38.1.65 HTML PDF PubReader Last 3 months views: 1107
Research Paper Design of Regional Coverage Low Earth Orbit (LEO) Constellation with Optimal Inclination Jinyoung Shin, Sang-Young Park, Jihae Son, Sung-Chan Song Journal of Astronomy and Space Sciences 2021;38(4):217-227. https://doi.org/10.5140/JASS.2021.38.4.217 HTML PDF PubReader Last 3 months views: 1099	Review Paper Challenges to Space Activities in the Context of Mega Satellite Constellations: A Focus on Environmental Impacts Sheer Abbas J. Astron. Space Sci. 2025;42(1):1-13. https://doi.org/10.5140/JASS.2025.42.1.1 HTML PDF PubReader Last 3 months views: 978
Technical Paper Korea Pathfinder Lunar Orbiter (KPLO) Operation: From Design to Initial Results Moon-Jin Jeon, Young-Ho Cho, Eunhyeuk Kim, Dong-Gyu Kim, Young-Joo Song, SeungBum Hong, Jonghee Bae, Jun Bang, Jo Ryeong Yim, Dae-Kwan Kim J. Astron. Space Sci. 2024;41(1):43-60. https://doi.org/10.5140/JASS.2024.41.1.43 HTML PDF PubReader Last 3 months views: 935	Research Paper Performance Analysis of Sensor Systems for Space Situational Awareness Eun-Jung Choi, Sungki Cho, Jung Hyun Jo, Jang-Hyun Park, Taejin Chung, Jaewoo Park, Hocheol Jeon, Ami Yun, Yonghui Lee Journal of Astronomy and Space Sciences 2017;34(4):303-313. https://doi.org/10.5140/JASS.2017.34.4.303 HTML PDF PubReader Last 3 months views: 897
Technical Paper Initial Results of Low Earth Orbit Space Radiation Dosimeter on Board the Next Generation Small Satellite-2 Uk-Won Nam, Won-Kee Park, Sukwon Youn, Jaeyoung Kwak, Jongdae Sohn, Bongkon Moon, Jaejin Lee, Young-Jun Choi, Jungho Kim, Sunghwan Kim, Hongjoo Kim, Hwanbae Park, Sung-Joon Ye, Hongyoung Park, Taeseong Jang J. Astron. Space Sci. 2024;41(3):195-208. https://doi.org/10.5140/JASS.2024.41.3.195 HTML PDF PubReader Last 3 months views: 893	Technical Paper ShadowCam Instrument and Investigation Overview Mark Southwick Robinson, Scott Michael Brylow, Michael Alan Caplinger, Lynn Marie Carter, Mattew John Clark, Brett Wilcox Denevi, Nicholas Michael Estes, David Carl Humm, Prasun Mahanti, Douglas Arden Peckham, Michael Andrew Ravine, Jacob Andrieu Schaffner, Emerson Jacob Speyerer, Robert Vernon Wagner J. Astron. Space Sci. 2023;40(4):149-171. https://doi.org/10.5140/JASS.2023.40.4.149 HTML PDF PubReader Last 3 months views: 819

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 19	Research Paper A Study on Re-entry Predictions of Uncontrolled Space Objects for Space Situational Awareness Eun-Jung Choi, Sungki Cho, Deok-Jin Lee, Siwoo Kim, Jung Hyun Jo J. Astron. Space Sci. 2017;34(4):289-302. https://doi.org/10.5140/JASS.2017.34.4.289 HTML PDF PubReader Cited by 15
Technical Paper Ground Tracking Support Condition Effect on Orbit Determination for Korea Pathfinder Lunar Orbiter (KPLO) in Lunar Orbit Young-Rok Kim, Young-Joo Song, Jae-ik Park, Donghun Lee, Jonghee Bae, SeungBum Hong, Dae-Kwan Kim, Sang-Ryool Lee J. Astron. Space Sci. 2020;37(4):237-247. https://doi.org/10.5140/JASS.2020.37.4.237 HTML PDF PubReader Cited by 15	Research Paper Performance Analysis of DPSK Optical Communication for LEO-to-Ground Relay Link Via a GEO Satellite Hyung-Chul Lim, Jong Uk Park, Mansoo Choi, Chul-Sung Choi, Jae-Dong Choi, Jongah Kim J. Astron. Space Sci. 2020;37(1):11-18. https://doi.org/10.5140/JASS.2020.37.1.11 HTML PDF PubReader Cited by 14
Technical Paper Observations of the Polar Ionosphere by the Vertical Incidence Pulsed Ionospheric Radar at Jang Bogo Station, Antarctica Young-Bae Ham, Geonhwa Jee, Changsup Lee, Hyuk-Jin Kwon, Jeong-Han Kim, Nikolay Zabotin, Terence Bullett J. Astron. Space Sci. 2020;37(2):143-156. https://doi.org/10.5140/JASS.2020.37.2.143 HTML PDF PubReader Cited by 13	Technical Paper ShadowCam Instrument and Investigation Overview Mark Southwick Robinson, Scott Michael Brylow, Michael Alan Caplinger, Lynn Marie Carter, Mattew John Clark, Brett Wilcox Denevi, Nicholas Michael Estes, David Carl Humm, Prasun Mahanti, Douglas Arden Peckham, Michael Andrew Ravine, Jacob Andrieu Schaffner, Emerson Jacob Speyerer, Robert Vernon Wagner J. Astron. Space Sci. 2023;40(4):149-171. https://doi.org/10.5140/JASS.2023.40.4.149 HTML PDF PubReader Cited by 13
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 12	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 12
Technical Paper A Deep Space Orbit Determination Software: Overview and Event Prediction Capability Youngkwang Kim, Sang-Young Park, Eunji Lee, Minsik Kim J. Astron. Space Sci. 2017;34(2):139-151. https://doi.org/10.5140/JASS.2017.34.2.139 HTML PDF PubReader Cited by 12	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 11