Results 51 to 60 of about 2,173,291 (371)
The First Extrasolar Planet Discovered with a New Generation High Throughput Doppler Instrument [PDF]
, 2006 We report the detection of the first extrasolar planet, ET-1 (HD 102195b), using the Exoplanet Tracker (ET), a new generation Doppler instrument. The planet orbits HD 102195, a young star with solar metallicity that may be part of the local association ...
Andrew Vanden Heuvel +30 more
core +6 more sources
STAR forward detector upgrade status and performance [PDF]
EPJ Web of ConferencesAn upgrade to the STAR detector system at forward rapidities has been completed before the RHIC RUN 2022. It consists of the Forward Tracking System (FTS) and the Forward Calorimeter System (FCS).
Wang Zhen
doaj +1 more source
A Novel Satellite Beacon for Ground-Based All-Day Observation Using a Star Tracker
IEEE Transactions on Geoscience and Remote SensingAll-day satellite observations are crucial for communications, navigation, and remote sensing. Current systems rely on large, long-focal-length telescopes that struggle with daytime surveillance.
Xinyuan Liu +7 more
semanticscholar +1 more source
Optics Express, 2019 Observation angular distance error, as the difference between the actual observation angular distance and the reference angular distance, is an important parameter that affects the identification success rate, attitude measurement accuracy, and real-time
Zhen Wang, Jie Jiang, Guangjun Zhang
semanticscholar +1 more source
Color star tracking II: matching [PDF]
, 2021 Geoffrey R. McVittie, John Enright
openalex +2 more sources
Quadrant-CCD star tracker [PDF]
, 1990 We discuss the characteristics of a Quadrant-CCD developed by Tektronix for pointing and tracking applications. The device is discussed in the context of its application to the Johns Hopkins University adaptive optics program, where it is being used for ...
Barkhouser, R. +10 more
core +1 more source
Autonomous Recalibration of Star Trackers [PDF]
IEEE Sensors Journal, 2018 <p>Star trackers must be calibrated prior to flight so that they can make accurate measurements of star positions within the instrument field of view. This calibration is usually performed in atmosphere and after the sensor is launched; it is not uncommon to observe a small shift in some of the calibration parameters.
John Enright +2 more
openaire +1 more source
Selection of Design Parameters in Optical System of Star Tracker for a Satellite [PDF]
Journal of Astronomy and Space Sciences, 1999 In order to develop star trackers for a satellite in our country we studied selection procedure of optical parameters. For logical selection of the optical parameters, we simulated the entire processes in which star lights imaged on a CCD sensor were ...
Ja-Kyung Nah, Yong Ha Kim, Yu Yi
doaj
A heavy flavor tracker for STAR [PDF]
Nuclear Physics A, 2006 proceedings of the Quark Matter 2005 Conference, Budapest, Hungary; to appear in Nucl. Phys.
openaire +2 more sources
Optics Express, 2019 When applied inside Earth's atmosphere, the star tracker is sensitive to sky background produced by atmospheric scattering and stray light. The shot noise induced by the strong background reduces star detection capability and even makes it completely out
Yuanman Ni +4 more
semanticscholar +1 more source