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Page Overview

This page documents our current development areas and goals.  It also contains links to documents relevant to current development areas.

Note:  Some documents are password protected per NASA software release requirements.  For example, design documents related to current development can only be made public after formal release approval including export control.  

R2015a Goals and Objectives

Goals

Objectives

 

High Level Feature Overview

 

Feature AreasDesciption
Event Location
  • Shadow location between spacecraft occulted by ellipsoidal celestial body.
  • Station rise-set location given elevation angle constraint
Optimal Control

MATLAB Prototype Only

  • Radau Collocation
  • Multple Phase with Linkage costraints
  • Mesh refinement
  • Sparse finite differencing
  • Event Constraints
  • Path Constraints
  • Bolza Cost Function
  • SNOPT
  • Chemical, Electric, and Impulsive Optimization
Navigation
  • Batch estimator (with sigma editing)
  • DSN Range Doppler
  • GN Range Doppler
  • CCSDS TDM
  • Media Corrections
GMAT Functions
  • Basic GMAT Functions
  • Subsriber (If time allows)

 

High Level Documentation

  • Requirements:  GMAT's CCB approved as well as working requirements.
  • Field Specification:  Details on user interface elements including defaults, ranges, descriptions, etc.

Feature Area Links

Estimation/Navigation

Optimal Control

Team:  SPH, WCS, YKK, JC, EK

GMAT Functions

Team:  TGG,RQ, LOJ

Event Location

Team:  JJKP, WCS, YRL, JB

  • Project Plan*: This document explains high level milestones, approach, and schedule.
  • Requirements: These are working requirements.
  • Benchmark Report*: Report comparing available solutions.
  • Design Trades*: Discussion of high-level design trades.
  • Architectural Design Spec*: This document contains high level design.
  • Interface Field Spec*: Describes user interface elements including ranges, defaults, descriptions.
  • Component Level Specifications

* Document is password-protected.

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