Design of a Low Earth Orbit Constellation for Regional Navigation Mission

Sajjad Ghazanfarinia; Ehsan Mousivand; Masoud Khoshsima; Yaser Saffar

Volume 2, Issue 2 , February 2023, , Pages 48-59

  This research is going to present design of a LEO Constellation for Navigation service with minimum number of Satellites. The goal is to achieve Dilution Of Precision (DOP) less than 6. This Requirement is going to be achieved using predefined launch vehicles limitation on orbit which is 500 km in circular ...  Read More

Time-optimal Control of Spacecraft Rotational and Translational Dynamics in Orbital Rendezvous Maneuver

Sayyed Mohammad Mousavi; Sayyed Majid Esmailifar; Mohammad Chiniforoushan

Volume 1, Issue 2 , March 2022, , Pages 147-166

  In this research, the time-optimal 6 degrees of freedom (6DOF) orbital rendezvous maneuver problem for an inertially asymmetric rigid spacecraft with independent attitude and position control actuators has been investigated. It is also assumed that the spacecraft is equipped with the thruster actuators ...  Read More