## Documents

### Technical documentation

#### Proulx Hansen 1988

*2014-03-06 12:49*

Series Representation and Rational Approximations for Hansen Coefficients.

R.J. Proulx

W.D. McClain

#### The Long-Term Prediction of Artificial Satellite Orbits

*2014-03-06 12:53*

The Long-Term Prediction of Artificial Satellite Orbits

P.J. Cefola

A.C. Long

G. Holloway Jr.

#### Andy Green MIT PhD thesis

*2014-03-06 13:03*

Orbit Determination and Prediction Processes for Low altitude Satellites

Andrew Joseph Green

#### Fortran 77 DSST Standalone Orbit Propagator Design Document

*2014-03-06 13:05*

Fortran 77 DSST Standalone Orbit Propagator Design Document

Paul J. Cefola

#### GTDS mathematical theory

*2014-03-06 13:11*

GTDS mathematical theory

A.C. Long

J.O. Cappellari Jr.

#### Integrated Hansen Manuscript

*2014-03-06 13:16*

Expansion of the Product of a Power of the Radius Vector

with the Sinus or cosinus of a Multiple of the True Anomaly

int Terms of Series

containing the sinuses or cosinuses of the multiples of the true, eccentric or mean anomaly

P.A. Hansen

#### A Semianalytic Artificial Satellite Theory

*2014-03-06 13:25*

A Semianalytic Artificial Satellite Theory

Wayne D. McClain

#### Sean Collins MIT PhD Thesis

*2014-03-06 13:30*

Long Term Prediction of High Altitude Orbits

Sean Kevin Collins

#### Fonte MIT SM Thesis

*2014-03-06 13:37*

Implementing a 50×50 gravity field model

in an orbit determination system

Daniel John Fonte

#### Herriges MIT SM Thesis

*2014-03-06 13:41*

NORAD General Perturbation Theories: an Independent Analysis

Darrell Lee Herriges

#### Lyon MIT SM Thesis

*2014-03-06 13:45*

Geosynchronous Orbit Determination

Using Space Surveillance Network Observations

and Improved Radiative Force Modeling

Richard Harry Lyon

#### Tesseral Resonances

*2014-03-06 13:48*

Mathematical Description of the Tesseral Resonances and Resonant Harmonic Coefficient Solve-For Capabilities

R.J. Proulx

#### Precision Orbit Determination Software Validation Experiment

*2014-03-06 13:52*

Precision Orbit Determination Software Validation Experiment

B.E. schutz

B.D. Tapley

R.J. Eanes

J.G. Marsh

R.G. Williamson

T.V. Martin

#### Tesseral Models in the DSST

*2014-03-06 13:53*

Tesseral Models in the DSST

P.J. Cefola

#### Zeis MIT MS Thesis

*2014-03-06 14:00*

A Computerized Algebraic Utility for the Construction of

Nonsingular Satellite Theories

Éric Ghislain Zeis

#### Theory short periodics tesseral

*2014-03-06 12:45*

A Theory for the Short Periodic Motion due to the Tesseral Harmonic Gravity Field

R. Proulx

W. McClain

L. Early

P. Cefola

### Governance documentation

#### OREKIT Governance

*2017-10-26 15:58*

This document describes the governance model under which OREKIT is run.

#### Open governance of the OREKIT space flight dynamics library

*2012-09-27 18:14*

This paper, presented at the 5th ICATT, explains the evolution of the OREKIT governance model.

#### OREKIT PMC - Minutes of July 2012 meeting

*2012-09-27 18:22*

Minutes of the 1st OREKIT PMC meeting

#### Contributor License Agreements & Software Grant

*2012-10-26 11:49*

Documents to be filled by contributors as described in the "OREKIT Governance document":https://www.orekit.org/forge/attachments/338/OREKIT_Governance.pdf (see § 2.3 Contribution process).

### Presentations and papers

#### From closed-source to open-source and open governance

*2013-06-27 11:43*

Presentation done during ESAW 2013 conference, 18-19 June 2013, Darmstadt, Germany

#### Orekit: an open-source space dynamics library in Java

*2013-06-27 11:45*

Presentation done during ESAW 2013 conference, 18-19 June 2013, Darmstadt, Germany

#### Revisiting the DSST Standalone Orbit Propagator

*2014-03-06 14:56*

Revisiting the DSST Standalone Orbit Propagator

Paul J. Cefola

Zachary Folcik

Romain Di Costanzo

Nicolas Bernard

Srinivas Setty

Juan Félix San Juan

#### Verification of the Orekit Java Implementation of the DSST

*2014-03-06 12:40*

Orekit DSST vs fortran DSST as of February 2013

#### Orekit Day 2017 Presentations

*2017-12-01 08:50*

The first Orekit Day took place in Toulouse on November 27th 2017, and we feel this was a success for the Orekit Community.

More than 60 persons from 24 companies / organizations and 9 different countries attended the symposium.

We thank all presenters and participants for having contributed to the interest of the Orekit Day.

...