The ROCKOT launch vehicle—the competitive launch solution for small Earth observation satellites into low Earth orbits

Freeborn, P.; Kinnersley, Mark; Zorina, A.

doi:10.1016/j.actaastro.2004.09.020

Cited by 1 publication

(1 citation statement)

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“…The name carrier rocket is also used to imply the same thing as a launch vehicle. Many commercial launch vehicles are developed from former inter‐continental ballistic missiles by applying some modifications (Freeborn et al , 2005; Dubourg et al , 2006).…”

Section: Introductionmentioning

confidence: 99%

A guidance algorithm for launch to equatorial orbit

Marrdonny

Mobed²

2009

Aircraft Engineering and Aerospace Technology

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PurposeThe purpose of this paper is to propose a new guidance algorithm for launching a satellite using an expendable rocket from an equatorial site to an equatorial low‐Earth orbit.Design/methodology/approachGuidance during endoatmospheric portion is based on a nominal trajectory computed prior to take‐off. A set of updating computations begins anew at the time instant tg of transition from endoatmosphere to exoatmosphere. The updating computations determine a guidance trajectory and an associated control law for the remainder of path by taking into account the rocket state at time tg. Thus, the overall guidance involves both initial and midcourse operations, and it has both open‐ and closed‐loop aspects.FindingsViability and performance in terms of speed, precision, and effectiveness of the proposed scheme is demonstrated through three‐dimensional simulations and comparisons to other methods.Originality/valueThe updating computations and the fashion in which they are incorporated into the entire guidance process constitute the novel features of the proposed algorithm.

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Section: Introductionmentioning

confidence: 99%