M. A. Ravine, C. J. Hansen, M. A. Caplinger, P. M. Schenk, L. Lipkaman Vittling, D. J. Krysak, J. E. Perry, D. A. Williams, J. Radebaugh, M. Pettine, J. T. Keane, A. G. Hayes, J. A. Rathbun, R. M. Lopes, S. J. Bolton
{"title":"朱诺相机对木卫一的观测","authors":"M. A. Ravine, C. J. Hansen, M. A. Caplinger, P. M. Schenk, L. Lipkaman Vittling, D. J. Krysak, J. E. Perry, D. A. Williams, J. Radebaugh, M. Pettine, J. T. Keane, A. G. Hayes, J. A. Rathbun, R. M. Lopes, S. J. Bolton","doi":"10.1029/2024JE008924","DOIUrl":null,"url":null,"abstract":"<p>During multiple <i>Juno</i> encounters with Io in 2023 and 2024, the spacecraft's imaging system, JunoCam, acquired approximately one hundred images of Io. These images have a range of scales down to 1 km per pixel, and covered more than half of Io's surface, including the previously poorly resolved northern and southern polar regions. Some of the highest resolution images were acquired of Io's nightside, illuminated by Jupiter-shine. Here we provide an overview of the JunoCam Io data set and discuss the peculiarities of JunoCam's “pushframe” imaging. Using JunoCam's high resolution coverage of the northern polar region, we have developed an improved geologic map of this previously poorly resolved area, and estimated the heights of 16 previously unidentified or poorly imaged mountains. In the higher resolution images, 14 new or modified plume deposits were identified, as were at least 20 probable new lava flows. Eight “Prometheus-type” volcanic plumes were identified, five of which were associated with areas showing flow-like surface changes.</p>","PeriodicalId":16101,"journal":{"name":"Journal of Geophysical Research: Planets","volume":"130 9","pages":""},"PeriodicalIF":4.0000,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2024JE008924","citationCount":"0","resultStr":"{\"title\":\"JunoCam Observations of Io\",\"authors\":\"M. A. Ravine, C. J. Hansen, M. A. Caplinger, P. M. Schenk, L. Lipkaman Vittling, D. J. Krysak, J. E. Perry, D. A. Williams, J. Radebaugh, M. Pettine, J. T. Keane, A. G. Hayes, J. A. Rathbun, R. M. Lopes, S. J. Bolton\",\"doi\":\"10.1029/2024JE008924\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>During multiple <i>Juno</i> encounters with Io in 2023 and 2024, the spacecraft's imaging system, JunoCam, acquired approximately one hundred images of Io. These images have a range of scales down to 1 km per pixel, and covered more than half of Io's surface, including the previously poorly resolved northern and southern polar regions. Some of the highest resolution images were acquired of Io's nightside, illuminated by Jupiter-shine. Here we provide an overview of the JunoCam Io data set and discuss the peculiarities of JunoCam's “pushframe” imaging. Using JunoCam's high resolution coverage of the northern polar region, we have developed an improved geologic map of this previously poorly resolved area, and estimated the heights of 16 previously unidentified or poorly imaged mountains. In the higher resolution images, 14 new or modified plume deposits were identified, as were at least 20 probable new lava flows. Eight “Prometheus-type” volcanic plumes were identified, five of which were associated with areas showing flow-like surface changes.</p>\",\"PeriodicalId\":16101,\"journal\":{\"name\":\"Journal of Geophysical Research: Planets\",\"volume\":\"130 9\",\"pages\":\"\"},\"PeriodicalIF\":4.0000,\"publicationDate\":\"2025-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2024JE008924\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Geophysical Research: Planets\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024JE008924\",\"RegionNum\":1,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"GEOCHEMISTRY & GEOPHYSICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Geophysical Research: Planets","FirstCategoryId":"89","ListUrlMain":"https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024JE008924","RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"GEOCHEMISTRY & GEOPHYSICS","Score":null,"Total":0}
During multiple Juno encounters with Io in 2023 and 2024, the spacecraft's imaging system, JunoCam, acquired approximately one hundred images of Io. These images have a range of scales down to 1 km per pixel, and covered more than half of Io's surface, including the previously poorly resolved northern and southern polar regions. Some of the highest resolution images were acquired of Io's nightside, illuminated by Jupiter-shine. Here we provide an overview of the JunoCam Io data set and discuss the peculiarities of JunoCam's “pushframe” imaging. Using JunoCam's high resolution coverage of the northern polar region, we have developed an improved geologic map of this previously poorly resolved area, and estimated the heights of 16 previously unidentified or poorly imaged mountains. In the higher resolution images, 14 new or modified plume deposits were identified, as were at least 20 probable new lava flows. Eight “Prometheus-type” volcanic plumes were identified, five of which were associated with areas showing flow-like surface changes.
期刊介绍：
The Journal of Geophysical Research Planets is dedicated to the publication of new and original research in the broad field of planetary science. Manuscripts concerning planetary geology, geophysics, geochemistry, atmospheres, and dynamics are appropriate for the journal when they increase knowledge about the processes that affect Solar System objects. Manuscripts concerning other planetary systems, exoplanets or Earth are welcome when presented in a comparative planetology perspective. Studies in the field of astrobiology will be considered when they have immediate consequences for the interpretation of planetary data. JGR: Planets does not publish manuscripts that deal with future missions and instrumentation, nor those that are primarily of an engineering interest. Instrument, calibration or data processing papers may be appropriate for the journal, but only when accompanied by scientific analysis and interpretation that increases understanding of the studied object. A manuscript that describes a new method or technique would be acceptable for JGR: Planets if it contained new and relevant scientific results obtained using the method. Review articles are generally not appropriate for JGR: Planets, but they may be considered if they form an integral part of a special issue.
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