Charon's light curves, as observed by New Horizons’ Ralph color camera (MVIC) on approach to the Pluto system

Light curves produced from color observations taken during New Horizons’ approach to the Pluto-system by its Multi-spectral Visible Imaging Camera (MVIC, part of the Ralph instrument) are analyzed. Fifty seven observations were analyzed, they were obtained between 9th April and 3rd July 2015, at a p...

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主要な著者: Howett, CJA, Ennico, K, Olkin, CB, Buie, MW, Verbiscer, AJ, Zangari, AM, Parker, AH, Reuter, DC, Grundy, WM, Weaver, HA, Young, LA, Stern, SA
フォーマット: Journal article
言語:English
出版事項: Elsevier 2016
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author Howett, CJA
Ennico, K
Olkin, CB
Buie, MW
Verbiscer, AJ
Zangari, AM
Parker, AH
Reuter, DC
Grundy, WM
Weaver, HA
Young, LA
Stern, SA
author_facet Howett, CJA
Ennico, K
Olkin, CB
Buie, MW
Verbiscer, AJ
Zangari, AM
Parker, AH
Reuter, DC
Grundy, WM
Weaver, HA
Young, LA
Stern, SA
author_sort Howett, CJA
collection OXFORD
description Light curves produced from color observations taken during New Horizons’ approach to the Pluto-system by its Multi-spectral Visible Imaging Camera (MVIC, part of the Ralph instrument) are analyzed. Fifty seven observations were analyzed, they were obtained between 9th April and 3rd July 2015, at a phase angle of 14.5° to 15.1°, sub-observer latitude of 51.2 °N to 51.5 °N, and a sub-solar latitude of 41.2°N. MVIC has four color channels; all are discussed for completeness but only two were found to produce reliable light curves: Blue (400–550 nm) and Red (540–700 nm). The other two channels, Near Infrared (780–975 nm) and Methane-Band (860–910 nm), were found to be potentially erroneous and too noisy respectively. The Blue and Red light curves show that Charon's surface is neutral in color, but slightly brighter on its Pluto-facing hemisphere. This is consistent with previous studies made with the Johnson B and V bands, which are at shorter wavelengths than that of the MVIC Blue and Red channel respectively.
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spelling oxford-uuid:b6423d65-40b9-431e-b22f-7c9b45db08ca2022-03-27T04:39:40ZCharon's light curves, as observed by New Horizons’ Ralph color camera (MVIC) on approach to the Pluto systemJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b6423d65-40b9-431e-b22f-7c9b45db08caEnglishSymplectic ElementsElsevier2016Howett, CJAEnnico, KOlkin, CBBuie, MWVerbiscer, AJZangari, AMParker, AHReuter, DCGrundy, WMWeaver, HAYoung, LAStern, SALight curves produced from color observations taken during New Horizons’ approach to the Pluto-system by its Multi-spectral Visible Imaging Camera (MVIC, part of the Ralph instrument) are analyzed. Fifty seven observations were analyzed, they were obtained between 9th April and 3rd July 2015, at a phase angle of 14.5° to 15.1°, sub-observer latitude of 51.2 °N to 51.5 °N, and a sub-solar latitude of 41.2°N. MVIC has four color channels; all are discussed for completeness but only two were found to produce reliable light curves: Blue (400–550 nm) and Red (540–700 nm). The other two channels, Near Infrared (780–975 nm) and Methane-Band (860–910 nm), were found to be potentially erroneous and too noisy respectively. The Blue and Red light curves show that Charon's surface is neutral in color, but slightly brighter on its Pluto-facing hemisphere. This is consistent with previous studies made with the Johnson B and V bands, which are at shorter wavelengths than that of the MVIC Blue and Red channel respectively.
spellingShingle Howett, CJA
Ennico, K
Olkin, CB
Buie, MW
Verbiscer, AJ
Zangari, AM
Parker, AH
Reuter, DC
Grundy, WM
Weaver, HA
Young, LA
Stern, SA
Charon's light curves, as observed by New Horizons’ Ralph color camera (MVIC) on approach to the Pluto system
title Charon's light curves, as observed by New Horizons’ Ralph color camera (MVIC) on approach to the Pluto system
title_full Charon's light curves, as observed by New Horizons’ Ralph color camera (MVIC) on approach to the Pluto system
title_fullStr Charon's light curves, as observed by New Horizons’ Ralph color camera (MVIC) on approach to the Pluto system
title_full_unstemmed Charon's light curves, as observed by New Horizons’ Ralph color camera (MVIC) on approach to the Pluto system
title_short Charon's light curves, as observed by New Horizons’ Ralph color camera (MVIC) on approach to the Pluto system
title_sort charon s light curves as observed by new horizons ralph color camera mvic on approach to the pluto system
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