### Refine by Time Frame

updated 2 months ago

### Darin Koblick (view profile)

Fully vectorized routine will estimate the decay time for Earth orbiting objects

computeOrbitalDecay(a,e,A,Cd,m0,F107,Ap)

updated 9 months ago

### Darin Koblick (view profile)

Vectorized 3-D rotation of any vector around an arbitrary axis

rotVecAroundArbAxis(unitVec2Rotate,rotationAxisUnitVec,th...

updated 1 year ago

### Darin Koblick (view profile)

Given an N-D matrix, this routine will return the diagonal elements of any two dimensions

diagND(ND,rowDim,colDim)

updated almost 2 years ago

### Darin Koblick (view profile)

Take Any N-D Matrix and Multiply it by another N-D Matrix Without a For-Loop

eDim(fND,fSeq)

fDim(ND,dim)

mntimes(x,y,xrowdim,xcoldim,yrowdim,ycoldim)

updated almost 2 years ago

### Darin Koblick (view profile)

Parallel Picard Iteration for a Linear Hyperbolic BVP PDE

parPicardPDESolver(N)

seqPicardPDESolver(N)

updated 2 years ago

### Darin Koblick (view profile)

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

vecRotMat(f,t)

vecRotMatDemo()

updated 2 years ago

### Darin Koblick (view profile)

Convert orbital elements to a state vector, or a state vector back to orbital elements.

orb2rv(p,e,i,O,o,nu,truLon,argLat,lonPer,mu)

rv2orb(r,v,mu)

test_orb2rv.m

updated 3 years ago

### Darin Koblick (view profile)

Predict the topocentric solar position defined by geodetic lat, lon, Alt, and a universal time

SolarAzEl(UTC,Lat,Lon,Alt)

test_SolarAzEl()

updated 3 years ago

### Darin Koblick (view profile)

Vectorized MATLAB code which will compute the solar flux given a wave length.

ASTM_E490_2000(MeanWaveLength,waveBand,useBlackbodyApprox)

updated 3 years ago

### Darin Koblick (view profile)

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

CWHPropagator(rHillInit,vHillInit,omega,t)

ECI2Hill_Vectorized(rTgt,vTgt,rChase,vChase)

ECI2RSW(rECI,vECI)

updated almost 4 years ago

### Darin Koblick (view profile)

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

eDim(fND,fSeq)

fDim(ND,dim)

multiDimDemo()

updated almost 4 years ago

### Darin Koblick (view profile)

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

PicardChebyshevDemo()

VMPCM(ode,tau,x_guess,omega1,omega2,errTol,varargin)

keplerUniversal(r0,v0,t,mu)

updated almost 4 years ago

### Darin Koblick (view profile)

Find the Greenwich Apparent Sidereal Time Given any Julian Date

JD2GAST(JD)

JD2GMST(JD)

updated almost 4 years ago

### Darin Koblick (view profile)

Calculate new ECI vectors corresponding to a desired time while fixing their relative earth position (eci, time, warp)

ECEFtoECI(JD,r_ECEF,v_ECEF,a_ECEF)

ECItoECEF(JD,r_ECI,v_ECI,a_ECI)

FixedECI(JD,r_ECI,v_ECI,a_ECI)

updated almost 4 years ago

### Darin Koblick (view profile)

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

ECItoECEF(JD,r_ECI,v_ECI,a_ECI)

JD2GAST(JD)

JD2GMST(JD)

updated almost 4 years ago

### Darin Koblick (view profile)

Gauss-Jackson Eight-Order MultiStep Predictor-Corrector using ODE113 in its startup procedure.

GJ8(FirstOrderODE,SecondOrderODE,tspan,h,y0,dy0,ddy0,opti...

GJ8_Demo()

keplerUniversal(r0,v0,t,mu)

updated 4 years ago

### Darin Koblick (view profile)

Analytic propagation routine uses universal variables to solve a single formula for all orbit types

KeplerUniversalVsSTK()

keplerUniversal(r0,v0,t,mu)

updated 4 years ago

### Darin Koblick (view profile)

Take any vector or series of vectors in the ECEF Coordinate frame and convert them to ECI. (eci, ecef, wgs 84)

ECEFtoECI(JD,r_ECEF,v_ECEF,a_ECEF)

JD2GAST(JD)

JD2GMST(JD)

updated 4 years ago

### Darin Koblick (view profile)

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

EquationOfTime(UTCjd)

UTC2SolarApparentTime(UTC,Lon)

updated 4 years ago

### Darin Koblick (view profile)

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

EquationOfTime(UTCjd)

updated 5 years ago

### Darin Koblick (view profile)

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

updated 5 years ago

### Darin Koblick (view profile)

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

LunarAzEl(UTC,Lat,Lon,Alt)

updated almost 6 years ago

### Darin Koblick (view profile)

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

JD2GMST(JD)

updated 6 years ago

### Darin Koblick (view profile)

Algorithm will convert topocentric RA/DEC Angles to Azimuth and Elevation (az, azimuth, dec)

updated 6 years ago

### Darin Koblick (view profile)

Algorithm will convert Az/El angles to RA /DEC using a topocentric coordinate frame (raan, ra, dec)