Results 101 to 110 of about 31,489 (272)

Signal Processing for the Cluster Wideband Data Burst Mode

Journal of Geophysical Research: Space Physics, Volume 131, Issue 2, February 2026.
Abstract The Wideband Data instrument is part of the Cluster spacecraft Wave Experiment Consortium. Its primary data path is a direct connection to the spacecraft data handling system providing real time downlink to the ground stations of the Deep Space Network and Panska Ves Observatory.
K. H. Yearby, S. N. Walker, J. S. Pickett   +2 more
wiley   +1 more source

Reconstructing Magnetotail Reconnection Events Using Data Mining is Feasible and Repeatable

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 1, February 2026.
Abstract Recently, Stephens et al. (2023), https://doi.org/10.1029/2022ja031066 utilized a data mining (DM) algorithm, applied to 26 years of magnetospheric magnetometer observations coupled with a flexible formulation of the magnetospheric magnetic field, to reconstruct the global configuration of the magnetotail when the Magnetospheric MultiScale ...
G. K. Stephens, R. S. Weigel, M. I. Sitnov, N. A. Tsyganenko   +3 more
wiley   +1 more source

Numerical Algorithm for Detecting Ion Diffusion Regions in the Geomagnetic Tail with Applications to MMS Tail Season May 1 -- September 30, 2017

, 2019
We present a numerical algorithm aimed at identifying ion diffusion regions (IDRs) in the geomagnetic tail, and test its applicability. We use 5 criteria applied in three stages.
Farrugia, C. J., Rogers, A. J., Torbert, R. B.   +2 more
core   +1 more source

Incorporating W‐Band Doppler Velocity Signal Simulator Into COSP2: Model Evaluation Against Ground‐Based Radar Measurement

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 2, February 2026.
Abstract A new signal simulator for Doppler velocity, derived for W‐band cloud profiling radar onboard EarthCARE, is developed and implemented into the Cloud Feedback Model Intercomparison Project Observation Simulator Package version 2 (COSP2). The simulator converts the vertical motion of hydrometeors and cumulus mass flux in global climate models ...
Yuhi Nakamura, Kentaroh Suzuki, Hiroaki Horie   +2 more
wiley   +1 more source

Cluster Inter-Spacecraft Communications [PDF]

A document describes a radio communication system being developed for exchanging data and sharing data-processing capabilities among spacecraft flying in formation.
Cox, Brian
core   +1 more source

Image Subtraction Reduction of Open Clusters M35 & NGC 2158 In The K2 Campaign-0 Super-Stamp

, 2017
Observations were made of the open clusters M35 and NGC 2158 during the initial K2 campaign (C0). Reducing these data to high-precision photometric time-series is challenging due to the wide point spread function (PSF) and the blending of stellar light ...
Bakos, G. A., Bhatti, W., Hartman, J. D., Huang, C. X., Penev, K., Soares-Furtado, M.   +5 more
core   +1 more source

Astronauts as a Human Aging Model: Epigenetic Age Responses to Space Exposure

Aging Cell, Volume 25, Issue 2, February 2026.
This longitudinal analysis of Axiom‐2 astronauts reveals that spaceflight induces a rapid andsignificant epigenetic age acceleration that is largely reversible upon return to Earth. These findings identify space exposure as a unique model for studying aging mechanisms and potentially testing geroprotective interventions.
Matías Fuentealba, JangKeun Kim, Jeremy Wain Hirschberg, Bader Shirah, Eliah G. Overbey, Christopher Mason, David Furman   +6 more
wiley   +1 more source

Curlometer and gradient techniques: past and future applications

Frontiers in Astronomy and Space Sciences
We review the range of applications and use of multi spacecraft techniques, applicable to close formation arrays of spacecraft, focusing on spatial gradient based methods, and the curlometer in particular. The curlometer was originally applied to Cluster
M. W. Dunlop, M. W. Dunlop, H.-S. Fu, C. Shen, X. Tan, X.-C. Dong, Y.-Y. Yang, P. Robert, C. P. Escoubet   +8 more
doaj   +1 more source

Kernel Embedding Approaches to Orbit Determination of Spacecraft Clusters

, 2018
This paper presents a novel formulation and solution of orbit determination over finite time horizons as a learning problem. We present an approach to orbit determination under very broad conditions that are satisfied for n-body problems. These weak conditions allow us to perform orbit determination with noisy and highly non-linear observations such as
Sharma, Srinagesh, Cutler, James W.
openaire   +2 more sources

BepiColombo at Mercury: Three Flybys, Three Magnetospheres

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract We examine the first three BepiColombo Mercury flybys Using data from the Miniature Ion Precipitation Analyzer (MIPA), an ion mass analyzer in the Search for Exospheric Refilling and Natural Abundances package on the Mercury Planetary Orbiter designed to study magnetospheric dynamics.
Hayley N. Williamson, Stas Barabash, Hans Nilsson, Martin Wieser, Jim M. Raines, Anna Milillo, Ali Varsani, Alessandro Aronica, Elisabetta DeAngelis, Yoshifumi Futaana, Daniel Heyner, Adrian Kazakov, Stefano Livi, Stefano Orsini, Kristin Pump, Daniel Schmid, Manabu Shimoyama   +16 more
wiley   +1 more source