Study of optimal ascent trajectories

Sang Young Park, Srinivas R. Vadali, Hans Seywald

Research output: Contribution to conferencePaper


This paper presents a study of optimal launch trajectories that minimize fuel or equivalently maximize payload. A model of the Advanced Launch System (ALS) is used for numerical experiments. The three-degree-of-freedom equations of motion for the ALS are solved by the multiple shooting method to obtain highly accurate solutions. The numerical results are presented as the open-loop optimal controls for the ALS. A sudden jump in the velocity roll angle profile during the second stage of the trajectory is noticed. The optimality of this transition is studied using hodograph analysis.

Original languageEnglish
Number of pages9
Publication statusPublished - 1994
EventAstrodynamics Conference, 1994 - Scottsdale, United States
Duration: 1994 Aug 11994 Aug 3


OtherAstrodynamics Conference, 1994
CountryUnited States

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics

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    Park, S. Y., Vadali, S. R., & Seywald, H. (1994). Study of optimal ascent trajectories. 514-522. Paper presented at Astrodynamics Conference, 1994, Scottsdale, United States.