The ExoClock Project: an open integrated and interactive platform to continuous monitor the targets of the Ariel space mission

2021 ◽  
Author(s):  
Anastasia Kokori

<div class="gs"> <div class=""> <div id=":6dj" class="ii gt"> <div id=":6dk" class="a3s aiL "> <div dir="ltr">The ExoClock Project (www.exoclock.space) is an open, integrated, and interactive platform, designed to maintain the ephemerides accuracy of the Ariel targets. Ariel is ESA's medium class space mission prepared for launch in 2028 to study a large number of exoplanets to better understand their nature. ExoClock aims to monitor the Ariel targets and provide transit timings to increase the mission efficiency.  <div>In the project we use all currently available data (literature observations, observations conducted for other purposes, both from ground and space) to make the best use of resources. ExoClock is open to contributions from a variety of audiences — professional, amateur and industry partners — and it aims to continuous monitor the Ariel targets with a verified list of ephemerides. Apart from its role to support Ariel, ExoClock acts as a service by providing the verified ephemerides for further use by the wide exoplanet community. In this presentation the nature, updates and the current status of the ExoClock project will be described in detail. Moreover, the first results will be presented briefly and finally, strategies and lessons learned from the operation of the project so far will be shared with the community. <div class="yj6qo"> </div> <div class="adL"> </div> </div> </div> <div class="adL"> </div> </div> </div> <div class="hi"> </div> </div> </div>

2020 ◽  
Author(s):  
Anastasia Kokori

<div dir="ltr">The ExoClock Project (www.exoclock.space) is an open, integrated, and interactive platform, designed to maintain the ephemerides accuracy of the Ariel targets. Ariel is ESA's medium class space mission prepared for launch in 2028. The main aim of the mission is to characterise a large number of exoplanets to better understand their nature. ExoClock aims to provide transit mid-time predictions for Ariel by collecting all currently available data (literature observations, observations conducted for other purposes, both from ground and space) and by efficiently planning dedicated efforts to follow-up the riel targets. ExoClock is open to contributions from a variety of audiences —  professional, amateur and industry partners — aiming to make the best use of all available resources towards delivering a verified list of ephemerides for the Ariel targets before the launch of the mission. </div> <div>In this presentation strategies, tools and the current status of the ExoClock project will be described in detail. In addition, the first results will be presented briefly and finally, lessons learned and the potential of using similar strategies in other projects will be discussed.</div>


2020 ◽  
Author(s):  
Monika Lendl

<p>The Characterizing Exoplanets Satellite (CHEOPS) is the first ESA space mission dedicated primarily to the study of exoplanetary systems. The satellite, carrying a 30cm photometric telescope, has been launched successfully in December 2019 and has seen first light in January 2020. Throughout it's nominal mission of 3.5 years, it will perform ultra-high precision photometry of bright stars know to host extrasolar planets. Next to searching for transits of planets known from radial velocities and measuring precise radii of known transiting planets, CHEOPS will dedicate approximately 25% of its observing time to characterizing exoplanet atmospheres. </p> <p>In this talk, I will describe the CHEOPS space mission, summarize its scientific program and detail how we will use CHEOPS to probe exoplanet atmospheres, such as optical-light occultations and planetary phase curves. After introducing the mission, I will give an update on it's current status, performances and show first results. I will conclude by discussing synergies with other facilities, both ground- and space-based, and illustrate how together they will advance our global understanding of planetary atmospheres.</p>


Animals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 808
Author(s):  
Gabriel M. Dallago ◽  
Kevin M. Wade ◽  
Roger I. Cue ◽  
J T. McClure ◽  
René Lacroix ◽  
...  

The ability of dairy farmers to keep their cows for longer could positively enhance the economic performance of the farms, reduce the environmental footprint of the milk industry, and overall help in justifying a sustainable use of animals for food production. However, there is little published on the current status of cow longevity and we hypothesized that a reason may be a lack of standardization and an over narrow focus of the longevity measure itself. The objectives of this critical literature review were: (1) to review metrics used to measure dairy cow longevity; (2) to describe the status of longevity in high milk-producing countries. Current metrics are limited to either the length of time the animal remains in the herd or if it is alive at a given time. To overcome such a limitation, dairy cow longevity should be defined as an animal having an early age at first calving and a long productive life spent in profitable milk production. Combining age at first calving, length of productive life, and margin over all costs would provide a more comprehensive evaluation of longevity by covering both early life conditions and the length of time the animal remains in the herd once it starts to contribute to the farm revenues, as well as the overall animal health and quality of life. This review confirms that dairy cow longevity has decreased in most high milk-producing countries over time and its relationship with milk yield is not straight forward. Increasing cow longevity by reducing involuntary culling would cut health costs, increase cow lifetime profitability, improve animal welfare, and could contribute towards a more sustainable dairy industry while optimizing dairy farmers’ efficiency in the overall use of resources available.


2018 ◽  
Vol 50 (9) ◽  
pp. 1319-1334 ◽  
Author(s):  
Jérôme Brugger

The article explores some of the conceptual discussions on information and communications technology (ICT) use in public administration in the 1970s. Based on ICT-maturity models, the interagency cooperation plans and their failed implementation are analyzed. This case study focuses on the discussions on the utilization of a unique identifier in Swiss public administration and describes the key concepts as well as the actual developments in this specific case. While the chosen approaches for shared use of resources encountered cultural and organizational limitations along with technical difficulties, new organizational practices for coordination and standardization were created and showed first results.


2010 ◽  
Vol 12 (4) ◽  
pp. 18-34 ◽  
Author(s):  
Bogdan Hoanca ◽  
Richard Whitney

In 2006, the University of Alaska Anchorage (UAA) upgraded the telephone system at its main campus in Anchorage from a traditional private branch exchange (PBX) architecture to a Voice over Internet Protocol (VoIP) system. This case describes the organizational decisions that led to the change; the scope and the process of upgrading; and the current status of the new VoIP system. The actual migration to VoIP was completed less than a year after the start of the project. The transition process went smoothly. User satisfaction with the performance of the VoIP system is very high. Based on extensive interviews with decision makers and the technical personnel involved, this case also describes financial considerations (including “creative” ways to stretch a limited budget), outsourcing considerations, training related issues, as well as lessons learned.


Atmosphere ◽  
2019 ◽  
Vol 10 (12) ◽  
pp. 747 ◽  
Author(s):  
Scot Rafkin ◽  
Timothy Michaels

The Mars Regional Atmospheric Modeling System (MRAMS) is closing in on two decades of use as a tool to investigate mesoscale and microscale circulations and dynamics in the atmosphere of Mars. Over this period of time, there have been numerous improvements and additions to the model dynamical core, physical parameterizations, and framework. At the same time, the application of the model to Mars (and related code for other planets) has taught many lessons about limitations and cautions that should be exercised. The current state of MRAMS is described along with a review of prior studies and findings utilizing the model. Where appropriate, lessons learned are provided to help guide future users and aid in the design and interpretation of numerical experiments. The paper concludes with a discussion of future MRAMS development plans.


Water ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 637 ◽  
Author(s):  
Jana Gheuens ◽  
Nidhi Nagabhatla ◽  
Edangodage Perera

Small island developing states (SIDS) are typically characterized by being environmentally and socio-economically vulnerable to disasters and climate change. Additionally, they often have limited resources for freshwater provisioning services. This article presents an assessment of disaster risk and water security-related challenges in SIDS focusing on three major dimensions: (a) how disaster risks are perceived and addressed in the SIDS context using a case study method, (b) analyzing the current status of water security in these regions using an indicator-based approach and (c) assessing gaps and needs in institutions and policies that can facilitate sustainable development goals (SDGs) and targets, adaptation and resilience building in SIDS. In this regard, information on all SIDS is collected to be able to distinguish trends in and between SIDS based on amongst others geographical location and characteristics. This synthesis noted two key observations: first, that in SIDS, the number of disasters is increasing at a higher rate than the global average, and that the frequency and intensity of the disasters will likely increase because of climate change. These combined factors will impact SIDS on the societal level and on environmental levels, reducing their adaptive capacity, resources, and resilience. Second, most SIDS are already water-scarce with low groundwater volumes. Because of increasing demand (e.g., population growth and tourism) and decreasing supply (e.g., pollution and changes in precipitation patterns) freshwater resources are becoming increasingly limited, often suffering from the spillover effects of competing and conflicting uses. Threatened ecosystems and limited economic resources further influence the adaptive capacities of communities in SIDS. In this light, key solutions to address disaster-risk and water security-related challenges can be found by sharing best practices and lessons learned—from examples of good governance, integrated policies, improved community-resilience, and capacity-building. Added to their fragile situation, SIDS struggle to find enough funding to put their development plans, programs, and policies into action.


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