Results 71 to 80 of about 1,106,314 (231)

TASTE IV. Refining ephemeris and orbital parameters for HAT-P-20b and WASP-1b [PDF]

, 2014
We present four new light curves of transiting exoplanets WASP-1b and HAT-P-20b, observed within the TASTE (The Asiago Search for Transit timing variations of Exoplanets) project.
Bedin, L. R., Borsato, L., Cunial, A., Damasso, M., Granata, V., Malavolta, L., Nascimbeni, V., Piotto, G.   +7 more
core   +1 more source

The THEMIS Control Network of Mars

Earth and Space Science, Volume 13, Issue 1, January 2026.
Abstract The accurate co‐registration of geospatial data is necessary to answer questions that cross‐cut disciplines and are key to understanding fundamental questions about our Solar System. To address this need and provide an updated product for Mars that is tied to a common reference frame, we have photogrammetrically controlled Thermal Emission ...
R. L. Fergason, L. Weller, M. T. Bland
wiley   +1 more source

A rapid stability assessment of China's IGS sites after the Ms7. 0 Lushan earthquake

Geodesy and Geodynamics, 2013
A rapid and accurate assessment of the stability of surveying and mapping reference points is important for post – disaster rescue, disaster relief and reconstruction activities. Using Precise Point Positioning (PPP) technology, a rapid assessment of the
Meng Jie, Chen Yongxiang, Wan Xin, Zhang Yingli   +3 more
doaj   +1 more source

Precise Orbit Determination of LEO Satellite Using Dual-Frequency GPS Data [PDF]

Journal of Astronomy and Space Sciences, 2009
KOrea Multi-purpose SATellite (KOMPSAT)-5 will be launched at 550km altitude in 2010. Accurate satellite position (20 cm) and velocity (0.03 cm/s) are required to treat highly precise Synthetic Aperture Radar (SAR) image processing.
Yoola Hwang, Byoung-Sun Lee, Jaehoon Kim, Jae-Cheol Yoon   +3 more
doaj   +1 more source

Detection of a transit by the planetary companion of HD 80606

, 2009
We report the detection of a transit egress by the ~ 3.9-Jupiter-mass planet HD 80606b, an object in a highly-eccentric orbit (e ~ 0.93) about its parent star of approximately solar type. The astrophysical reality of the signal of variability in HD 80606
Agol, Barbieri, Claret, David M. Kipping, Dommanget, Ford, Garcia-Melendo, Hog, Holman, Ingo P. Waldmann, Kipping, Kipping, Laughlin, Mamajek, Mamajek, Mandel, Moutou, Naef, Press, Saffe, Stephen J. Fossey, Stetson, Swain, Tinetti, Winn, Winn, Wu, Zeng   +27 more
core   +1 more source

Searching for gravitational waves from the Crab pulsar - the problem of timing noise [PDF]

, 2003
Of the current known pulsars, the Crab pulsar (B0531+21) is one of the most promising sources of gravitational waves. The relatively large timing noise of the Crab causes its phase evolution to depart from a simple spin-down model.
, Abbott B (The LIGO Scientific Collaboration), Dupuis R Woan G, Graham Woan, Jaranowski P, Jones D I, Lyne A, Matthew Pitkin   +7 more
core   +3 more sources

Outer Radiation Belt Dynamics During the October 2012 Storm Revisited: Rapid Inward Radial Transport From a Dynamic Outer Boundary

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Earth's outer radiation belt electron flux is highly variable and can be enhanced by over an order of magnitude over timescales less than one day, as observed during the October 2012 storm. Previous studies of this storm (e.g., Reeves et al., 2013, https://doi.org/10.1126/science.1237743) have invoked local acceleration to explain this ...
L. G. Ozeke, I. R. Mann, L. Olifer, S. K. Morley, H. E. Spence   +4 more
wiley   +1 more source

Transit observations at the observatory in Grossschwabhausen: XO-1b and TrES-1 [PDF]

, 2008
We report on observations of transit events of the transiting planets XO-1b and TrES-1 with the AIU Jena telescope in Grossschwabhausen. Based on our IR photometry (in March 2007) and available transit timings (SuperWASP, XO and TLC-project-data) we ...
A. Koeltzsch, A. Seifahrt, Broeg, C. Broeg, J. Koppenhoefer, M. Hohle, M. Mugrauer, M. Vaňko, R. Neuhäuser, S. Raetz, T. Eisenbeiss, T. O. B. Schmidt, T. Roell   +12 more
core   +2 more sources

Evaluating Multipoint Sampling of Global‐Scale High‐Latitude Electrodynamics by the Geospace Dynamics Constellation

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract The Geospace Dynamics Constellation (GDC) mission aims to investigate the dynamic coupling between the magnetosphere, ionosphere, and thermosphere by resolving key spatiotemporal processes at scales ranging from local to global. A key aspect is GDC's ability to reconstruct hemispheric‐scale high‐latitude electrodynamics with comprehensive ...
J. S. Shim, R. M. Robinson, K. Garcia‐Sage, D. E. Rowland, F. Di Mare, J. Klenzing, G. Liu   +6 more
wiley   +1 more source

Precise Orbit Determination of MEX Flyby Phobos Using Simulated Radiometric and Image Data

Sensors, 2021
A navigation camera or topography camera is a standard payload for deep space missions and the image data are normally used for auto-navigation. In this work, we study the potential contribution of image data in precise orbit determination for deep space
Xinbo Zhu, Lu Liu, Suyan Liu, Pan Xie, Wutong Gao, Jianguo Yan   +5 more
doaj   +1 more source