Investigation of the State Vectors and Prediction of the Orbital Elements for Spot-6 Satellite during 1300 periods with Perturbations

Abdulrahman H. Saleh; Fouad M. Abdulla

doi:10.1088/1742-6596/1664/1/012010

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Publication Date

Fri Nov 27 2020

Journal Name

Journal Of Physics: Conference Series

Volume

1664

Issue Number

1

DOI

10.1088/1742-6596/1664/1/012010

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Investigation of the State Vectors and Prediction of the Orbital Elements for Spot-6 Satellite during 1300 periods with Perturbations

satellite orbit

orbital predication

orbital perturbations

orbital elements.

Abdulrahman H. Saleh

Fouad M. Abdulla

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AbstractComputer simulations were carried out to investigate the dependence of the main perturbation parameters (Sun and Moon attractions, solar radiation pressure, atmosphere drag, and geopotential of Earth) on the orbital behavior of satellite. In this simulation, the Cowell method for accelerations technique was adopted, the equation of motion with perturbation was solved by 4th order Runge-Kutta method with step (1/50000) of period to obtain the state vectors for position and velocity. The results of this simulation have been compared with data that available on TLEs (NORD data in two line elements). The results of state vectors for satellites (Cartosat-2B, Gsat-14 and Spot-6) shows excellent correlation and this is leading us to extend our study for (spot-6) satellite to include the orbital behavior during 13000 periods under the effect of one type of perturbation or all types. The results indicate that all perturbation have clear effect on spot-6 orbit, reduced the perigee and apogee about 3 Km. during 89 days, also the time of period reduced 4.7 sec. Other conclusions present that the perigee angle increases 28.01 degree with any perturbation accept SRP. Furthermore, the geopotential have a big periodic effect but the atmospheric drag have accumulated effect on most orbital elements.

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Publication Date

Mon Mar 01 2021

Journal Name

Journal Of Physics: Conference Series

High pollutant levels of produced water around Al-Ahdab oil field in Wasit governorate (Iraq)

Heavy Metals (Cd

Co

Cr

Pd

and Ni)

Al-Ahdab oilfield in Wasit

Iraq

the Main Outfall Drain (MOD)

produced water (PW)

inductively couple plasma (ICP-OES)

N M

Khalid Waleed S

S A

Z S.

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AbstractExploration activities of the oil and gas industry generate loads of formation water called produced water (PW) up to thousands of tons each day. Depending on the geographic area, formation depth, oil production techniques, and age of oil supply wells, PW from different oil fields contain different chemical compositions. Currently, PW is also known as industrial waste water containing heavy metals that are toxic to humans and the environment, requiring special processing so that they can be disposed of in the environment. To determine the heavy metals content in PW from the Al-Ahdab oil field (AOF), the Ministry of Science and Technology/Agricultural Research Department determined som ... Show More

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Publication Date

Thu Jun 30 2011

Journal Name

Al-kindy College Medical Journal

Antenatal diagnosis of myometrial invasion in anterior placenta previa by transabdominal color Doppler ultra sound

placenta previa accreta

inccreta

color Doppler

ultrasound

sensitivity

false positive sonography

Jwan N.

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Background: The incidence of maternal mortality in
placenta previa accrete is 7%,and its preoperative
diagnosis is of a great value.
Objective: to evaluate the efficacy of transabdominal
color Doppler ultrasound in diagnosing placenta
previa accreta and inccreta. Color Doppler imaging
criteria used in: includes diffuse parenchymal
placental lacunar flow, focal intra parenchymal
placental lacunar flow and bladder uterine serosa
interphase hyper-vascularity.
Design: Prospective study on patients from
January2007 to January 2008.
Patients and method: 48patients with one caesarean
section or more and with persistent anterior placenta
previa diagnosed by transabdominal ultrasound were
examined by c

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Publication Date

Fri Jun 01 2018

Journal Name

Current Medical Science

Biomechanical Evaluation of Nano-Zirconia Coatings on Ti-6Al-7Nb Implant Screws in Rabbit Tibias

Thekra I.

Abdalbseet A

Amer Subhi

Zena G. M.

Ying-guang

Ke

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(16)

Publication Date

Fri Aug 02 2019

Journal Name

The Fifth Conference On Smart Monitoring, Assessment And Rehabilitation Of Civil Structures Smar 2019

Rehabilitation of Mohammed Al-Qassim Bridge after Fire Attack Using CFRP Sheets: A Case Study

Nazar K.

...Show More Authors

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Publication Date

Sat Jan 01 2011

Journal Name

Journal Of Engineering

ORGANIZATION OF MEMORY CHIPS IN MEMORY SYSTEMS THAT HAVE WORD SIZE WIDER THAN 8-BIT

Omar

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This paper presents a method to organize memory chips when they are used to build memory systems that have word size wider than 8-bit. Most memory chips have 8-bit word size. When the memory system has to be built from several memory chips of various sizes, this method gives all possible organizations of these chips in the memory system. This paper also suggests a precise definition of the term “memory bank” that is usually used in memory systems. Finally, an illustrative design problem was taken to illustrate the presented method practically.

Publication Date

Sat Jan 01 2022

Journal Name

Journal Of Pharmaceutical Negative Results

Phytocompound of pure thymol inhibit COVID-19 by binding to ACE2 receptor: In silico approach

Ayyad W. ALShahwany

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(2)

Publication Date

Wed Aug 06 2025

Journal Name

Journal Of Baghdad College Of Dentistry

Maximum bite force among a group of Iraqi children in relation to mandibular growth rotation

Muna

Ban

Nagham

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Publication Date

Tue Jun 01 2021

Journal Name

Iop Conference Series: Earth And Environmental Science

Treatment of Al-Muthanna Petroleum Refinery Wastewater by Electrocoagulation Using a Tubular batch Electrochemical Reactor

Ghazi F.

Thamer J.

Ali H.

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AbstractAn electrocoagulation process has been used to eliminate the chemical oxygen demand (COD) from wastewaters discharged from the Al-Muthanna petroleum refinery plant. In this process, a circular aluminum bar was used as a sacrificial anode, and hallow cylinder made from stainless steel was used as a cathode in a tubular batch electrochemical Reactor. Impacts of the operating factors like current density (5-25mAcm-2), NaCl addition at concentrations (0-2g/l), and pH at values (3-11) on the COD removal efficiency were studied.Results revealed that the increase in current density increases the COD removal efficiency, whereas an increase ... Show More

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(10)

(4)

Publication Date

Wed Dec 02 2020

Journal Name

Iraqi Journal Of Applied Physics

Characterization of Multilayer Highly-Pure Metal Oxide Structures Prepared by DC Reactive Magnetron Sputtering Technique

Magnetron sputtering

Reactive sputtering

Multilayer structures

Nanostructures

Mohammed A.

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In this work, multilayer nanostructures were prepared from two metal oxide thin films by dc reactive magnetron sputtering technique. These metal oxide were nickel oxide (NiO) and titanium dioxide (TiO2). The prepared nanostructures showed high structural purity as confirmed by the spectroscopic and structural characterization tests, mainly FTIR, XRD and EDX. This feature may be attributed to the fine control of operation parameters of dc reactive magnetron sputtering system as well as the preparation conditions using the same system. The nanostructures prepared in this work can be successfully used for the fabrication of nanodevices for photonics and optoelectronics requiring highly-pure nanomaterials.

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Publication Date

Mon Nov 26 2018

Journal Name

Indian Journal Of Agricultural Research

Effect of seed weight on stem anatomical characters in white lupine (Lupinus albus L.) cultivars

Hasan M.A.

Jalal Hameed

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An anatomical study was carried out at the College of Agricultural Engineering Sciences, University of Baghdad, in 2017, on lupine crop (Lupinus albus) as a comparison guide of three seed weights of three lupine cultivars viz. ‘Giza-1’, ‘Giza-2’ and ‘Hamburg’. The nested design was used with four replications. The results showed that cultivars had a significant effect on stem anatomical traits. ‘Hamburg’ cultivar recorded the highest stem diameter, cortex thickness and xylem vascular diameter, while cultivar ‘Giza-1’ recorded the lowest values for the same traits as well as the highest collenchyma layer thickness, vascular bundle thickness, and xylem thickness. Cultivar ‘Giza-2’ recorded the lowest vascular b

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