Results 31 to 40 of about 635,631 (297)

Correction of rotational blur in images of stars observed by an astroinertial attitude sensor against the background of the daytime sky

open access: yesКомпьютерная оптика, 2023
A rotational blur correction algorithm is considered as the initial stage of image processing in the problem of attitude measurement using a star tracker. To implement this algorithm, the star tracker must be equipped with a three-axis gyroscope.
N.N. Vasilyuk
doaj   +1 more source

Astronomy: Star tracker [PDF]

open access: yesNature, 2013
As an early adopter of astronomical technology, Andrea Ghez is revealing secrets about the giant black hole at the Galaxy's centre.
openaire   +1 more source

Autonomous Recalibration of Star Trackers [PDF]

open access: yesIEEE 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

STAR forward detector upgrade status and performance [PDF]

open access: yesEPJ Web of Conferences
An 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

Towards Star Tracker Only Attitude Estimation [PDF]

open access: yes, 2010
Star trackers can provide full information about satellite attitude information from a single sensor. In this paper, we examine the feasibility of designing attitude determination systems using only star trackers.
McVittie, Geoff   +4 more
core   +1 more source

Selection of Design Parameters in Optical System of Star Tracker for a Satellite [PDF]

open access: yesJournal 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  

Optimization of star research algorithm for esmo star tracker [PDF]

open access: yes, 2011
This paper explains in detail the design and the development of a software research star algorithm, embedded on a star tracker, by the ISAE/SUPAERO team. This research algorithm is inspired by musical techniques.
Fabacher, Emilien   +5 more
core  

LSPE-STRIP: Testing Star Tracker Breadboard Prototypes [PDF]

open access: yes, 2022
Scope of this document is the description of a series of tests carried on different bread board models of the STRIP/LSPE Star Tracker (STR)
MARIS, Michele
core  

Uncovering Inequities: The Role of Social Determinants of Health in Hospitalized Adolescents and Young Adults With Heavy Menstrual Bleeding

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Heavy menstrual bleeding (HMB) is a common condition among adolescents and young adults (AYAs) and is the leading cause of iron deficiency anemia (IDA) in this population. Growing evidence suggests that social determinants of health (SDOH) influence menstrual bleeding patterns, access to care, and treatment. However, no studies have
Maria Carter‐Febres   +6 more
wiley   +1 more source

JUMPSAT: Qualifying three equipments in one Cubesat mission [PDF]

open access: yes, 2013
We work on a student 3U Cubesat mission, called JUMPSAT, expected for 2017. This is a collaborative project involving both institutions (CNES, ONERA) and schools (ISAE, TELECOM Bretagne).
Grave, Julien   +4 more
core  

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