490 citations
- Space Telescope Science InstituteUS18 papers
- Centre National de la Recherche ScientifiqueFR15 papers
- NSF National Center for Atmospheric ResearchUS13 papers
- The University of SydneyAU13 papers
- Aarhus UniversityDK12 papers
- Ames Research CenterUS12 papers
- Centro de Astrofísica da Universidade do PortoPT12 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR12 papers
- Laboratoire d’études spatiales et d’instrumentation en astrophysiqueFR12 papers
- NSF NCAR High Altitude ObservatoryUS12 papers
- Observatoire de ParisFR12 papers
- Astrophysique, Instrumentation et ModélisationFR11 papers
15 papers · 1 filter
The Near Infrared Imager and Slitless Spectrograph for the James Webb Space Telescope -- IV. Aperture Masking Interferometry
Anand Sivaramakrishnan, Peter Tuthill, James P. Lloyd +36
The James Webb Space Telescope's Near Infrared Imager and Slitless Spectrograph (JWST-NIRISS) flies a 7-hole non-redundant mask (NRM), the first such interferometer in space, opera…
Automated Rendezvous & Docking Using 3D Vision
Farhad Aghili
The robustness and accuracy of a vision system for motion estimation of a tumbling target satellite are enhanced by an adaptive Kalman filter. This allows a vision-guided robot to…
Detection of cesium in the atmosphere of the hot He-rich white dwarf HD 149499B
P. Chayer, C. Mendoza, M. Meléndez +2
We report the first detection of cesium (Z = 55) in the atmosphere of a white dwarf. Around a dozen absorption lines of Cs IV, Cs V, and Cs VI have been identified in the Far Ultra…
Control and Simulation of Motion of Constrained Multibody Systems Based on Projection Matrix Formulation
Farhad Aghili
This paper presents a unified approach for inverse and direct dynamics of constrained multibody systems that can serve as a basis for analysis, simulation, and control. The main ad…
Hybrid Simulator for Space Docking and Robotic Proximity Operations
Farhad Aghili
In this work, we present a hybrid simulator for space docking and robotic proximity operations methodology. This methodology also allows for the emulation of a target robot operati…
Six-DOF Spacecraft Dynamics Simulator For Testing Translation and Attitude Control
Farhad Aghili
This paper presents a method to control a manipulator system grasping a rigid-body payload so that the motion of the combined system in consequence of externally applied forces to…