Activities of PMO optical space debris survey

Chen, Zhang; Zhao, Chunjiang

doi:10.1590/0001-3765202120200827

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…Changing event survey (CHES) (Chen and Changyin, 2021) is a general optical survey program mainly aimed at cataloging and discovering Earth orbital resident space objects (RSOs), but it also follows the interests of other astronomical goals. It is carried out by multiple small-to medium-sized wide-field optical telescopes and some other auxiliary telescopes, which form a complex observation network located at multiple sites.…”

Section: Ches Program Requirements and Existing Techniquesmentioning

confidence: 99%

CHES robotic observation software kit

Zhang

Zhu²

2022

Front. Astron. Space Sci.

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CHES (changing event survey) is an optical survey program that not only aims at searching fast-moving RSOs in the sky for space domain awareness but also takes other scientific goals into account, such as NEO and transient events. After the success of the first array located at the Yaoan site in China, it evolved into a wider network consisting of various types of devices. This study presents a full-function framework for coordinating observation across such a network. The robotic observation system takes both extension flexibility and operation simplicity into account to meet special requirements such as timing, complex tracking, dynamic scheduling, unique device configuration, and distributed collaborative observation. Currently, this Python-based system has been deployed to several sites, supporting observation systems from single, entry-level telescopes to multiple medium-sized professional telescopes and performing predefined routing surveys and user-defined observation for different scientific goals. Some of them run unattended for a regular survey to maintain the base catalog and produce survey images for different purposes.

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Section: Ches Program Requirements and Existing Techniquesmentioning

confidence: 99%

CHES robotic observation software kit

Zhang

Zhu²

2022

Front. Astron. Space Sci.

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The BINGO project

Abdalla¹,

Ferreira²,

Landim³

et al. 2022

A&A

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Context. Observations of the redshifted 21-cm line of neutral hydrogen (Hi) are a new and powerful window of observation that offers us the possibility to map the spatial distribution of cosmic Hi and learn about cosmology. Baryon Acoustic Oscillations from Integrated Neutral Gas Observations (BINGO) is a new unique radio telescope designed to be one of the first to probe baryon acoustic oscillations (BAO) at radio frequencies.Aims. BINGO has two science goals: cosmology and astrophysics. Cosmology is the main science goal and the driver for BINGO's design and strategy. The key of BINGO is to detect the low redshift BAO to put strong constraints on the dark sector models and test the ΛCDM (cold dark matter) model. Given the versatility of the BINGO telescope, a secondary goal is astrophysics, where BINGO can help discover and study fast radio bursts (FRB) and other transients, as well as study Galactic and extragalactic science. In this paper, we introduce the latest progress of the BINGO project, its science goals, describing the scientific potential of the project for each goal and the new developments obtained by the collaboration. Methods. BINGO is a single dish transit telescope that will measure the BAO at low-z by making a 3D map of the Hi distribution through the technique of intensity mapping over a large area of the sky. In order to achieve the project's goals, a science strategy and a specific pipeline for cleaning and analyzing the produced maps and mock maps was developed by the BINGO team, which we generally summarize here. Results. We introduce the BINGO project and its science goals and give a general summary of recent developments in construction, science potential, and pipeline development obtained by the BINGO collaboration in the past few years. We show that BINGO will be able to obtain competitive constraints for the dark sector. It also has the potential to discover several FRBs in the southern hemisphere. The capacity of BINGO in obtaining information from 21-cm is also tested in the pipeline introduced here. Following these developments, the construction and observational strategies of BINGO have been defined. Conclusions. There is still no measurement of the BAO in radio, and studying cosmology in this new window of observations is one of the most promising advances in the field. The BINGO project is a radio telescope that has the goal to be one of the first to perform this measurement and it is currently being built in the northeast of Brazil. This paper is the first of a series of papers that describe in detail each part of the development of the BINGO project.

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Detecting Space Debris using Deep Learning Algorithms: A Survey

Jharbade

Dixit

2022

2022 4th International Conference on Inventive Research in Computing Applications (ICIRCA)

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Activities of PMO optical space debris survey

Cited by 3 publications

References 6 publications

CHES robotic observation software kit

CHES robotic observation software kit

The BINGO project

Detecting Space Debris using Deep Learning Algorithms: A Survey

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