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Darin Koblick


California State University and Claremont Graduate University

26 total contributions since 2009

Professional Interests: Astrodynamics

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Submitted


Vectorized Multi-Dimensional Matrix Multiplication
Take Any N-D Matrix and Multiply it by another N-D Matrix Without a For-Loop

4 months ago | 4 downloads |

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Vectorized Orbital Decay Routine For Space Objects Between 180 and 500 km Altitude.
Fully vectorized routine will estimate the decay time for Earth orbiting objects

9 months ago | 5 downloads |

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rotVecAroundArbAxis(unitVec2Rotate,rotationAxisUnitVec,theta)
Vectorized 3-D rotation of any vector around an arbitrary axis

1 year ago | 6 downloads |

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Vectorized Diagonal of any Multi-Dimensional Matrix
Given an N-D matrix, this routine will return the diagonal elements of any two dimensions

2 years ago | 3 downloads |

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Parallel Implementation of the Picard Iteration For Linear BVP PDEs
Parallel Picard Iteration for a Linear Hyperbolic BVP PDE

2 years ago | 1 downloads |

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Efficient Vector Rotation Matrix Routine
Efficient Method to Determine a Matrix Needed to Rotate One Vector to Another

2 years ago | 2 downloads |

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Convert Keplerian Orbital Elements to a State Vector
Convert orbital elements to a state vector, or a state vector back to orbital elements.

3 years ago | 24 downloads |

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Vectorized Solar Azimuth and Elevation Estimation
Predict the topocentric solar position defined by geodetic lat, lon, Alt, and a universal time

3 years ago | 41 downloads |

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2000 ASTM Standard Extraterrestrial Spectrum Reference E-490-00
Vectorized MATLAB code which will compute the solar flux given a wave length.

4 years ago | 1 downloads |

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Vectorized Clohessy-Wiltshire Hill Linear Propagation
A Demonstration of Linear Satellite Orbit Propagation Using Clohessy-Wiltshire Equations of Motion.

4 years ago | 11 downloads |

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Flatten Any Mulitdimensional Matrix into a 2-D Matrix!
Convert any multidimensional matrix into a 2-D Matrix. Then convert it back to its original form.

4 years ago | 1 downloads |

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Vectorized Picard-Chebyshev Method
Vectorized Picard-Chebyshev Method used for the analysis of the 2012 ASME Conference paper 87878

4 years ago | 2 downloads |

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Convert Julian Date to Greenwich Apparent Sidereal Time
Find the Greenwich Apparent Sidereal Time Given any Julian Date

4 years ago | 9 downloads |

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State Vector Warping Routine
Calculate new ECI vectors corresponding to a desired time while fixing their relative earth position

4 years ago | 2 downloads |

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Convert ECI to ECEF Coordinates
Transform ECI position, velocity and acceleration to ECEF position, velocity & acceleration.

4 years ago | 31 downloads |

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Gauss-Jackson Eighth-Order ODE Solver (Fixed Step Size)
Gauss-Jackson Eight-Order MultiStep Predictor-Corrector using ODE113 in its startup procedure.

4 years ago | 6 downloads |

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Vectorized Analytic Two Body Propagator (Kepler Universal Variables)
Analytic propagation routine uses universal variables to solve a single formula for all orbit types

4 years ago | 5 downloads |

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Convert ECEF to ECI Coordinates
Take any vector or series of vectors in the ECEF Coordinate frame and convert them to ECI.

5 years ago | 25 downloads |

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Convert UTC to Solar Apparent Time
Convert a time given in UTC to Solar Apparent or Solar Mean Time

5 years ago | 7 downloads |

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Equation of Time
Compute the equation of time with accuracy on the order of seconds.

5 years ago | 8 downloads |

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Bulirsch-Stoer Propagator/Integrator
Implementation of the Bulirsch-Stoer algorithm for purposes of numerical orbit propagation.

6 years ago | 1 downloads |

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Lunar Azimuth and Altitude Estimation Algorithm
Predict the Lunar Azimuth and Altitude within +/- .2 deg of any lat and lon for a given UTC

6 years ago | 2 downloads |

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Julian Date to Greenwich Mean Sidereal Time
Convert a given Julian Date to Greenwich Mean Sidereal Time (GMST) in degrees.

6 years ago | 19 downloads |

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Convert Right Ascension and Declination to Azimuth and Elevation
Algorithm will convert topocentric RA/DEC Angles to Azimuth and Elevation

7 years ago | 5 downloads |

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Convert Azimuth and Elevation to Right Ascension and Declination
Algorithm will convert Az/El angles to RA /DEC using a topocentric coordinate frame

7 years ago | 5 downloads |

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196 Algorithm + GUI Beta Version
Highly optimized c code and Matlab GUI to find any palindrome using the 196-algorithm

8 years ago | 1 downloads |

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