| タイトル | A Smoothed Eclipse Model for Solar Electric Propulsion Trajectory Optimization |
| 本文（外部サイト） | http://hdl.handle.net/2060/20170003689 |
| 著者（英） | Parker, Jeffrey S.; Scheeres, Daniel J.; Englander, Jacob A.; Aziz, Jonathan D. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 2017-06-03 |
| 言語 | eng |
| 内容記述 | Solar electric propulsion (SEP) is the dominant design option for employing low-thrust propulsion on a space mission. Spacecraft solar arrays power the SEP system but are subject to blackout periods during solar eclipse conditions. Discontinuity in power available to the spacecraft must be accounted for in trajectory optimization, but gradient-based methods require a differentiable power model. This work presents a power model that smooths the eclipse transition from total eclipse to total sunlight with a logistic function. Example trajectories are computed with differential dynamic programming, a second-order gradient-based method. |
| NASA分類 | Spacecraft Propulsion and Power; Astrodynamics |
| レポートNO | GSFC-E-DAA-TN40978 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
