Responsive Satellites through Ground Track Manipulation using Existing Technology

Co, Thomas C.; Black, Jonathan; Zagaris, Costantinos

doi:10.2514/6.2011-7262

Cited by 5 publications

(9 citation statements)

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“…The acceleration of the electric propulsion system given here is consistent with that used by Co in his previous work. [18][19][20] Table 1 defines the standard orbital parameters used for the analysis.…”

Section: A Overview Of the Solution Spacementioning

confidence: 99%

“…For the case of low-thrust propulsion, Co's work in recent years has developed a control algorithm which allows a single satellite to pass over a given target using electric propulsion. [18][19][20] Co uses the difference in time of flyover between the maneuvering satellite and a non-maneuvering reference satellite as a metric, and can solve for this using a single equation. Co's algorithm propagates the initial orbit for a given time and identifies close passes to the target.…”

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confidence: 99%

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Analytical Low-Thrust Satellite Maneuvers for Rapid Ground Target Revisit

McGrath¹,

Macdonald²

2016

Aiaa Space 2016

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Section: A Overview Of the Solution Spacementioning

confidence: 99%

mentioning

confidence: 99%

Analytical Low-Thrust Satellite Maneuvers for Rapid Ground Target Revisit

McGrath¹,

Macdonald²

2016

Aiaa Space 2016

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“…However, these works have not taken into consideration the combined problem of both selecting the initial orbits and performing maneuvers. Other research has also investigated the optimization of a constellation through reconfigurable maneuvers (Appel, Guelman, & Mishne, ) with other work focusing on the selection of maneuvers based on technological constraints (Co, Zagaris, & Black, ). Another study did not consider the groundtrack of the satellite constellation, but considered the relative spacing between satellites to maximize the collection of scientific data (Hoskins & Atkins, ).…”

Section: Introductionmentioning

confidence: 99%

Satellite constellation design for forest fire monitoring via a stochastic programing approach

Hoskins

Medal

Rashidi

2017

Naval Research Logistics

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There is significant value in the data collected by satellites during and after a natural disaster. The current operating paradigm in practice is for satellites to passively collect data when they happen to fly over a disaster location. Conversely, this article considers the alternative approach of actively maneuvering satellites to fly directly overhead of the disaster site on a routine basis. Toward this end, we seek to compute a satellite constellation design that minimizes the expected maneuver costs for monitoring an unknown forest fire. In this article, we present a 2‐stage stochastic programing model for this problem as well as a accelerated L‐shaped decomposition approach. A comparison between our approach and the current operating paradigm indicates that our solution provides longer duration data collections and a greater number of data collections. Analysis also shows that our proposed solution is robust over a wide array of scenarios.

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“…3 Many studies have focused on fulfilling missions by maneuvering existing low-Earth-orbit (LEO) satellites. [4][5][6][7][8][9][10][11][12][13][14] Slight corrective maneuvers can be employed to alter a ground track pattern into another to satisfy several objectives in the course of the same mission. 4 The effects of an in-plane maneuver on any point of the ground track for near-circular orbits were analyzed, which could be required by responsive surveillance missions, in Zhang et al 5 A low-thrust orbit maneuver was used as an effective means to achieve responsive terrestrial coverage.…”

Section: Introductionmentioning

confidence: 99%

“…4 The effects of an in-plane maneuver on any point of the ground track for near-circular orbits were analyzed, which could be required by responsive surveillance missions, in Zhang et al 5 A low-thrust orbit maneuver was used as an effective means to achieve responsive terrestrial coverage. [6][7][8][9][10][11] The Lorentz force, a type of propellantless force, was adopted to drive an on-orbit satellite to gradually change its orbit and provide new coverage in Pollock et al 6 In particular, electric propulsion (EP) was used as a means of maneuvering in. [7][8][9][10][11] Adjusting the ground tracks of LEO satellites to arrive over a terrestrial target has been studied extensively in recent years.…”

Section: Introductionmentioning

confidence: 99%

Constellation design for responsive visiting based on ground track adjustment

Xiang

Liu

Chen

2017

Proceedings of the Institution of Mechanical Engineers, Part G:

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Many responsive civilian or military space missions require that a certain ground site of interest be visited in a fairly short period (e.g., 12 h or less). To this end, a constellation must be utilized, since a single satellite is usually unable to fulfill such a task if the ground site is selected on the whole terrestrial surface responding to random user requirements. In this paper, the design approaches of such a constellation for responsive visiting based on ground track adjustment are investigated. By using the difference in orbit period between the maneuvered satellite and the reference satellite to make the ground track shift, reachable domain belts are generated. In terms of orbit maneuvering, two-and one-impulse maneuvers are analyzed and compared. Based on the reachable domain belts of a single satellite, two constellation design methods are proposed. The first one is an analytical method which is presented to achieve global reach and implemented by uniformly splicing together the widest belts of all satellites within the range of [0 , 180 ]. The second one is an optimized method proposed to further reduce the number of satellites, by splicing together all the reachable domain belts rather than only the widest belts in the equator. A hybrid algorithm that consists of the genetic algorithm and the pattern search algorithm is proposed to minimize the number of satellites. Numerical examples are provided to illustrate the two proposed constellation design methods and validate the global reach performance.

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Responsive Satellites through Ground Track Manipulation using Existing Technology

Cited by 5 publications

References 0 publications

Analytical Low-Thrust Satellite Maneuvers for Rapid Ground Target Revisit

Analytical Low-Thrust Satellite Maneuvers for Rapid Ground Target Revisit

Satellite constellation design for forest fire monitoring via a stochastic programing approach

Constellation design for responsive visiting based on ground track adjustment

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