Results 91 to 100 of about 1,149 (246)

A Concept for In-Space, System-Level Validation of Spacecraft Precision Formation Flying [PDF]

, 2007
Jesse Leitner, James R. Carpenter, Bo J. Naasz, Asif Ahmed, Fred Y. Hadaegh, Daniel P. Scharf   +5 more
openalex   +1 more source

Visible‐Shortwave Infrared (VSWIR) Spectral Parameters for the Lunar Trailblazer High‐Resolution Volatiles and Minerals Moon Mapper (HVM3)

Earth and Space Science, Volume 13, Issue 3, March 2026.
Abstract The Lunar Trailblazer smallsat mission High‐resolution Volatiles and Minerals Moon Mapper (HVM3) science instrument was designed to acquire targeted spectral image cubes of the lunar surface at visible to shortwave infrared (VSWIR) wavelengths (0.6–3.6 μm) in an effort to understand the distribution, abundance, and form (OH, H2O, ice) of lunar
Angela M. Dapremont, Rachel L. Klima, Kierra A. Wilk, Bethany L. Ehlmann, Christopher S. Edwards, Kerri L. Donaldson Hanna, Valeriya Kachmar, Laura Lee, Jasper K. Miura, Carlé M. Pieters, Erin Pimentel, Katherine A. Shirley, David R. Thompson, Isabelle Adamczewski   +13 more
wiley   +1 more source

Fault Detection And Isolation In Attitude Control Subsystem Of Spacecraft Formation Flying Using Extended Kalman Filters

, 2015
Shahab Ghasemi, K. Khorasani
openalex   +3 more sources

Diurnal Temperature Variability at Latitudinally Distinct Sites on the Moon

Earth and Space Science, Volume 13, Issue 3, March 2026.
Abstract The thermophysical environment of the Moon plays a crucial role for future exploration, resource utilization and also in understanding its geological evolution. While global‐scale surface temperature distributions have been reasonably well constrained through numerical modeling and orbiter observations, recent in situ measurements have ...
G. Ambily, K. Durga Prasad, Y. Ramakrishna   +2 more
wiley   +1 more source

Spacecraft Formation Flying Via Dynamic Compensation

, 1999
In this paper we present a passivity based control for spacecraft formation flying. We derive both attitude and position control. The controls do not require velocity information. They only require information about the position and attitude of the given robot and two of its neighbors.
Lawton, Jonathan, Beard, Randal W., Hadaegh, Fred Y.   +2 more
openaire   +1 more source

To Mars through LEO: How commercial space travel will change exploration‐enabling research

Experimental Physiology, EarlyView.
Christopher Puhl, Michail Magkos
wiley   +1 more source

Fourier Neural Operator for Moonquake Detection

Earth and Space Science, Volume 13, Issue 3, March 2026.
Abstract Moonquakes provide critical observations for probing the lunar interior, yet their analysis is hindered by the limited number of recordings and their inherently low signal‐to‐noise ratio (S/N). Conventional detection methods such as Short‐Term Average/Long‐Term Average (STA/LTA) perform poorly on lunar data, while standard deep learning models
Basem Al‐Qadasi, Umair Bin Waheed
wiley   +1 more source

Blistering barnacles: Space physiology in The Adventures of Tintin

Experimental Physiology, EarlyView.
Jacob P. Hartmann, Mathis B. Mottelson, Rasmus H. Dahl, Ronni R. Plovsing, Ronan M. G. Berg   +4 more
wiley   +1 more source

The Evolution of a Polar Cap Patch Into a Blob in the Nightside Ionosphere: Direct Observations of Multiple Blob Formation Mechanisms Acting Simultaneously on the Same Plasma

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract A polar cap patch was observed to exit the polar cap to become a blob as it entered the auroral oval on the nightside of the Earth under moderately quiet geomagnetic conditions (Kp = 3−). Auroral particle precipitation led to an increase in the electron density of the blob.
S. J. Maguire, A. G. Wood, D. R. Themens, E. M. Henley, S. E. Milan, Y. Soobiah, K. Oksavik, W. J. Miloch, J. C. Coxon, M. G. Johnsen   +9 more
wiley   +1 more source

Review of Spacecraft Pose-Estimation Techniques for Close-Proximity Operations

IEEE Access
The accurate estimation of spacecraft pose during close-proximity operations is a fundamental capability required for various space missions, including on-orbit servicing, debris management, and formation flying.
Kenny Vishal, Vishnu G. Nair, Jeane Marina D'Souza   +2 more
doaj   +1 more source