scholarly journals Management of Celestial Systems under Spatial Grasp Model

2021 ◽  
Vol 6 (2) ◽  
pp. 10
Author(s):  
Peter Simon Sapaty
Keyword(s):  
Mobile Code ◽  
Satellite Constellations ◽  
Private Companies ◽  
Small Satellites ◽  
Governmental Agencies ◽  
Low Earth Orbits ◽  
Parallel Pattern ◽  
Networking Protocols ◽  
High Level ◽  
Earth Orbits

Many governmental agencies and private companies of different countries are now rushing into space around Earth in hope to provide smart communication, industrial, security, and defense solutions. This often involves massive launches of cheap small satellites which are also contributing to the growth of space debris. The current paper discusses how the developed high-level system philosophy and model can effectively organize distributed space-based systems on different stages of their development and growth. The briefed Spatial Grasp Technology, based on parallel pattern-matching of distributed environments with high-level recursive mobile code, can effectively provide any networking protocols and important applications of large satellite constellations, especially those on Low Earth Orbits. The paper contains examples of technology-based solutions for establishing basic communications between satellites, starting from their initial, often chaotic, launches and distributing and collecting data in the growing constellations with even unstable and rapidly changing connections between satellites. It describes how to organize and register networking topologies in case of predictable distances between satellites, and how the fixed networking structures can help in solving complex problems. The latter including those related to the new Space Development Agency multiple-satellite defense-oriented architecture and allowing for effective integration of its continuous earth custody observation and cooperative missile tracking and elimination layers, based on self-spreading mobile intelligence. Earlier versions of the technology, described in many papers, six books including, were prototyped and used in different countries, with the current one quickly implementable too, even in university-based environments.

scholarly journals Development of space-based distributed systems under spatial grasp technology.

2021 ◽  
Vol 4 ◽  
pp. 3-14
Author(s):  
P.S. Sapaty ◽  
Keyword(s):  
Mobile Code ◽  
Satellite Constellations ◽  
Private Companies ◽  
Governmental Agencies ◽  
System Philosophy ◽  
Low Earth Orbits ◽  
Parallel Pattern ◽  
Networking Protocols ◽  
High Level ◽  
Earth Orbits

Many governmental agencies and private companies of different countries are now rushing into space around Earth in the hope to provide smart communication, industrial, security and defense solutions. This often involves massive launches of small cheap satellites which are also contributing to the growth of space debris. The current paper discusses how the developed high-level system philosophy and model can effectively organize distributed space-based systems on different stages of their development and growth. The briefed Spatial Grasp Technology, based on parallel pattern-matching of distributed environments with high-level recursive mobile code, can effectively provide any networking protocols and important applications of large satellite constellations, especially those in low Earth orbits. The article gives some examples of technology-based solutions for establishing basic communications between satellites, starting from their initial, often chaotic, launches and distributing and collecting data in the growing constellations with even unstable and rapidly changing connections between satellites. It describes how to organize and register networking topologies in case of predictable distances between satellites, and how the fixed networking structures can help in solving complex problems. The latter includes those related to the new Space Development Agency’s multiple-satellite defense-oriented architecture and allows for effective integration of its continuous Earth custody observation and cooperative missile tracking and elimination layers, based on self-spreading mobile intelligence. Earlier versions of the technology, described in many papers, six books including, were prototyped and used in different countries, with the current one quickly implementable too, even in university-based environments.

scholarly journals Managing multiple satellite architectures by spatial grasp technology

2021 ◽  
Vol 1 ◽  
pp. 3-16
Author(s):  
P.S. Sapaty ◽  
Keyword(s):  
Strategic Defense Initiative ◽  
The Earth ◽  
Space Projects ◽  
Strategic Defense ◽  
Low Earth Orbits ◽  
Cruise Missiles ◽  
High Level ◽  
Space Architecture ◽  
And Control ◽  
Earth Orbits

The paper reviews some advanced space projects oriented on many satellites moving around the globe in low Earth orbits, and investigates how to organize their collective operation for solving important world problems, especially those related to global security and defense. It analyzes the application of the developed Spatial Grasp model and Technology (SGT), successfully tested on numerous applications, for simulation and management of multiple satellite architectures. Of particular interest is the latest Space Development Agency Next-Generation Space Architecture that uses a great number of cooperating satellites organized on different layers, which appears to be much more advanced than the known Strategic Defense Initiative project of the eighties. SGT is based on mobile recursive scenarios in a special high-level Spatial Grasp Language (SGL) which can self-navigate and self-match distributed environments while leaving throughout them powerful spatial infrastructures capable of solving any distributed problems. Providing basics of the latest SGT version, the paper describes examples of solutions in it of such problems as distributed tracing and elimination of complexly moving cruise missiles and hypersonic gliders, organization of effective custody layer which will be able to observe not only localized dangerous objects on the Earth but also any distributed terrestrial infrastructures as a whole. It also shows how to introduce a higher virtual layer for satellite constellation which may simplify formulation and solution of many problems in both terrestrial and celestial environments, including advanced command and control of complex national and international operations and campaigns from space.

Small satellites in space activities

2020 ◽  
Vol 956 (2) ◽  
pp. 50-56
Author(s):  
I.N. Gansvind
Keyword(s):  
Atmospheric Pressure ◽  
New Technologies ◽  
Low Cost ◽  
Educational Process ◽  
Small Satellites ◽  
The Earth ◽  
Design Requirements ◽  
Low Earth Orbits ◽  
Earth Orbits ◽  
Space Activities

Changes in space activities related to the practice of using small satellites are considered. The relatively low cost of development, production and launch in low Earth orbiting are explained due to transformation of small satellites into a mass product, available for using in the educational process, remote sensing, in meteorology, flight-testing new technologies, communication and internet distribution as well as space exploration. Small satellites constellations serve the need for systematic global imagery with minimal interval between observing any area of the Earth. Large constella- tions of satellites with radio-occultation equipment provide high-altitude profiles of atmospheric pressure, temperature and humidity for assimilation in weather models. Small satellites will find applications beyond low earth orbits. It is planned to launch 6U CubeSat Sky Fire in the vicinity of the moon to study its surface with new infrared hardware. The projected orbit for Lunar Orbital Platform Gateway will be checked using CubeSat to meet the design requirements.

Atmosphere density changes caused by the motion of spacecrafts in low Earth orbits

2009 ◽  
Vol 15 (1) ◽  
pp. 13-18 ◽  
Author(s):  
A.I. Maslova ◽  
◽  
A.V. Pirozhenko ◽  
Keyword(s):  
Atmosphere Density ◽  
Low Earth Orbits ◽  
Earth Orbits

scholarly journals PENGARUH MOTIVASI DAN DISIPLIN KERJA TERHADAP KINERJA KARYAWAN PT. KODECO AGROJAYA MANDIRI KEBUN 1 DANAU BIRU ESTATE DESA SARING SUNGAI BUBU KECAMATAN KUSAN HILIR KABUPATEN TANAH BUMBU

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Nurul Hidayah ◽  
Arief Noviarakhman Zagladi
Keyword(s):  
Research Methods ◽  
Significant Influence ◽  
Total Population ◽  
Employee Performance ◽  
Secondary Data ◽  
Private Companies ◽  
Correlational Research ◽  
Low Performance ◽  
High Level ◽  
Research Types

Abstract: Many factors have an impact toward high and low performance of employees in private companies. The purpose of this study was to determine the influence of motivation and work discipline on employee performance at PT. Kodeco Agrojaya Mandiri Kebun 1 Danau Biru Estate Saring Sungai Bubu Village, Kusan Hilir District, Tanah Bumbu Regency. Research Methods using correlational research. Types of data are primary and secondary data using questionnaires and documentation. The total population is 547 people. With the number of respondents 137 employees of PT. Kodeco Agrojaya Mandiri Kebun 1 Danau Biru Estate Saring Sungai Bubu Village, Kusan Hilir District, Tanah Bumbu Regency. Research results show that motivation has a positive and significant effect on employee performance. So, if motivation is carried out and applied properly by all employees, the employee's performance will also increase. Work discipline also has a positive and significant influence on employee performance. So, if the employee has a high level of discipline in the work then the performance will also be achieved optimally. Motivation and work discipline simultaneously have an influence on employee performance. So the higher the motivation and the employee's discipline, the employee's performance will increase. Keywords: motivation, work disciplines, employee performance Abstrak: Banyak faktor yang memiliki dampak terhadap tinggi rendahnya kinerja pada karyawan di perusahaan swasta. Tujuan Penelitian ini adalah untuk Mengetahui motivasi dan disiplin Kerja Berpengaruh tehadap Kinerja Kayawan PT. Kodeco Agrojaya Mandiri Kebun 1 Danau Biru Estate Desa Saring Sungai Bubu Kecamatan Kusan Hilir Kabupaten Tanah Bumbu. Metode Penelitian dengan menggunakan penelitian korelasional. Jenis data yaitu data primer dan sekunder dengan menggunakan kuesioner dan dokumentasi. Jumlah populasi 547 orang. Dengan jumlah responden 137 orang karyawan PT. Kodeco Agrojaya Mandiri Kebun 1 Danau Biru Estate Desa Saring Sungai Bubu Kecamatan Kusan Hilir Kabupaten Tanah Bumbu. Hasil Penelitian menunjukan bahwa Motivasi kerja berpengaruh positif dan signifikan terhadap kinerja karyawan. Jadi, jika motivasi kerja dilakukan dan diterapkan dengan baik oleh semua karyawan maka kinerja karyawan juga akan mengalami peningkatan. Disiplin kerja memiliki pengaruh positif dan signifikan terhadap kinerja karyawan. Jadi, jika karyawan memiliki kedisiplinan yang tinggi dalam bekerja maka kinerja juga akan tercapai secara maksimal. Motivasi dan disiplin kerja secara simultan memiliki pengaruh terhadap kinerja karyawan. Jadi semakin tinggi motivasi dan kedisiplian karyawan maka kinerja karyawanpun akan semakin meningkat. Kata kunci : motivasi, disiplin kerja, kinerja karyawan

scholarly journals Solar radiation pressure resonances in Low Earth Orbits

2017 ◽  
Vol 473 (2) ◽  
pp. 2407-2414 ◽  
Author(s):  
Elisa Maria Alessi ◽  
Giulia Schettino ◽  
Alessandro Rossi ◽  
Giovanni B. Valsecchi
Keyword(s):  
Solar Radiation ◽  
Radiation Pressure ◽  
Solar Radiation Pressure ◽  
Low Earth Orbits ◽  
Earth Orbits

scholarly journals A Dynamic Testbed for Nanosatellites Attitude Verification

Aerospace ◽  
2020 ◽  
Vol 7 (3) ◽  
pp. 31 ◽  
Author(s):  
Dario Modenini ◽  
Anton Bahu ◽  
Giacomo Curzi ◽  
Andrea Togni
Keyword(s):  
Attitude Determination ◽  
Vision System ◽  
Ground Truth ◽  
Cost Effective ◽  
Air Bearing ◽  
Dynamic Testbed ◽  
Commercial Off The Shelf ◽  
Low Earth Orbits ◽  
Three Degree Of Freedom ◽  
Earth Orbits

To enable a reliable verification of attitude determination and control systems for nanosatellites, the environment of low Earth orbits with almost disturbance-free rotational dynamics must be simulated. This work describes the design solutions adopted for developing a dynamic nanosatellite attitude simulator testbed at the University of Bologna. The facility integrates several subsystems, including: (i) an air-bearing three degree of freedom platform, with automatic balancing system, (ii) a Helmholtz cage for geomagnetic field simulation, (iii) a Sun simulator, and (iv) a metrology vision system for ground-truth attitude generation. Apart from the commercial off-the-shelf Helmholtz cage, the other subsystems required substantial development efforts. The main purpose of this manuscript is to offer some cost-effective solutions for their in-house development, and to show through experimental verification that adequate performances can be achieved. The proposed approach may thus be preferred to the procurement of turn-key solutions, when required by budget constraints. The main outcome of the commissioning phase of the facility are: a residual disturbance torque affecting the air bearing platform of less than 5 × 10−5 Nm, an attitude determination rms accuracy of the vision system of 10 arcmin, and divergence of the Sun simulator light beam of less than 0.5° in a 35 cm diameter area.

Sign in / Sign up

Export Citation Format

Share Document