In this paper, we consider new computational approaches for solving nonlinear TwoPoint Boundary-Value Problems. The sensitivity calculations required in the solution utilize the automatic differentiation tool OCEA (Object Oriented Coordinate Embedding Method). OCEA has broad potential in this area and many other areas since the partial derivative calculations required for solving these problems...

he Midcourse Space Experiment (MSX) spacecraft employs infrared, ultraviolet, and visible light sensors to collect images and spectrographic signatures on a variety of targets, especially missiles, other satellites, and auroral phenomena. These instruments are fixed in the satellite body and face in a common direction. Their fields of view vary, with some of them being quite small (1 3 3°). Thu...

The explicit purpose of gathering feedback in college classes is to improve those courses, usually along the lines of structure, organization, pace, or some other aspect of the course over which the professor typically has control. A potential outcome that is less immediately obvious is the shift that can take place regarding who is responsible and in what ways for the analysis and revision of ...

J = cost function N = number of impulses NLT = number of low-thrust-independent thrusters p = primer-vector magnitude p = primer vector pm = primer-vector absolute maximum r = relative position vector rj = space collocation of the jth impulse tf = final time tint = intermediate time tj = time instant of the jth impulse application tm = midcourse time corresponding to the primer absolute maximum...

Recently the Midcourse Space Experiment (MSX) has surveyed the Galactic plane in mainly four infrared bands between 6 and 25 μm. Two of these bands cover several Unidentified Infrared emission Bands (UIBs). With the aim of extracting the spatial distribution of the UIB emission on a large scale, a scheme has been developed to model the MSX data with emission in the UIBs alongwith the underlying...