The Analyzer for Cusp Ions (ACI) on the TRACERS Mission.

IF 9.1 2区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Space Science Reviews Pub Date : 2025-01-01 Epub Date: 2025-03-13 DOI:10.1007/s11214-025-01154-w

Stephen A Fuselier, Matthew A Freeman, Craig A Kletzing, Sean R Christopherson, Michael J Covello, Daniel De Luna, Raymond L Doty, Colin G Elder, Judith D Furman, Jonathan Gasser, Don E George, Roman G Gomez, Guy A Grubbs, Kristie Llera, David M Miles, Joey Mukherjee, Kristian B Persson, Steven M Petrinec, Dinesh K V Radhakrishnan, Christopher L Ramirez, Ashley S Reisig, Charline Rodriguez, Courtney A Rouse, David A Ruggles, Shawn D Schwarz, Jonathan R Sekula, Linda J Shipp, Justyna M Sokół, Kylie M Sullivan, Karlheinz J Trattner, Sarah K Vines

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引用次数: 0

Abstract

The Analyzers for Cusp Ions (ACIs) on the TRACERS mission measure ion velocity distribution functions in the magnetospheric cusp from two closely spaced spacecraft in low Earth orbit. The precipitating and upflowing ion measurements contribute to the overarching goal of the TRACERS mission and are key to all three science objectives of the mission. ACI is a toroidal top-hat electrostatic analyzer on a spinning platform that provides full angular coverage with instantaneous 22.5° × ∼6° angular resolution for a single energy step. ACI has an ion energy range from ∼8 eV/e to 20,000 eV/e covered in 47 logarithmic-spaced energy steps with fractional energy resolution of ∼10%. It provides reasonably high cadence (312 ms) measurements of the ion energy-pitch angle distribution with good sensitivity and energy resolution, enabling detection of cusp boundaries and characterization of cusp ion steps.

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来源期刊

Space Science Reviews 地学天文-天文与天体物理

CiteScore

19.70

自引率

3.90%

发文量

审稿时长

4-8 weeks

期刊介绍： Space Science Reviews (SSRv) stands as an international journal dedicated to scientific space research, offering a contemporary synthesis across various branches of space exploration. Emphasizing scientific outcomes and instruments, SSRv spans astrophysics, physics of planetary systems, solar physics, and the physics of magnetospheres & interplanetary matter. Beyond Topical Collections and invited Review Articles, Space Science Reviews welcomes unsolicited Review Articles and Special Communications. The latter encompass papers related to a prior topical volume/collection, report-type papers, or timely contributions addressing a robust combination of space science and technology. These papers succinctly summarize both the science and technology aspects of instruments or missions in a single publication.