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White Paper: Efficient Covariance Interpolation Using Blending Of Approximate State Error Transitions

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This paper describes a new method for interpolating covariance in which an approximate state error transition is incorporated.

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White Paper: Ephemeris Requirements For Space Situational Awareness

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This paper describes the ephemeris requirements for Space Situational Awareness (SSA).

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White Paper: Estimation Of Instantaneous Maneuvers Using A Fixed Interval Smoother

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The analysis of these nearly instantaneous maneuvers is the focus of this study.

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White Paper: Integrated Surveillance Model for the Assessment of Surveillance Architectures and Operations

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This paper describes the integrated surveillance model for the assessment of surveillance architectures and operations

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White Paper: Parametric Characterization of SGP4 Theory and TLE Positional Accuracy

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This paper demonstrates the ability of “Enhanced GP” (EGP) to fit notional “truth orbits” derived from using a full-force modeling

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White Paper: QQ-Plot For Sequential Orbit Determination

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This paper describes QQ-Plot For sequential orbit determination.

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White Paper: Sample Orbit Covariance Function And Filter-Smoother Consistency Tests

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This paper describes sample orbit covariance function and filter-smoother consistency tests

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The Debate over UTC and Leap Seconds

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This paper describes the debate over UTC and Leap Seconds

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White Paper: The Many Triad Algorithms

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This paper describes the many TRIAD algorithms.

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Maxim-1-Wire-I-Button Dongle Specifications

  • Nov 5, 2015
  • FAQ

The attached documents list the features and specs for the Maxim-1-Wire I-Button dongles. Use these to ensure that they do not have writable memory.

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How Do I Model a Turnstile, Yagi-Uda, or Other Custom Antenna in MATLAB and Export Them for Use in STK?

  • Jul 18, 2016
  • FAQ

This article and accompanying document provide guidance on modeling and exporting custom antenna radiation patterns in MATLAB for use in STK.

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How can I Quickly Set the Number of Significant Figures in a Report for Multiple Data Providers?

  • Oct 12, 2015
  • FAQ

This article explains how to quickly set the number of significant figures for two or more data providers in a report.

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Export AzEl Mask Data from STK into KML

  • Aug 17, 2016
  • FAQ

This article provides the procedure to accomplish this.

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Export an Attitude File with Yaw, Pitch, and Roll

  • Jun 22, 2016
  • FAQ

This article is a guide to exporting attitude files with yaw, pitch, and roll.

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EOIR Slow and Steady Simulation

  • Dec 15, 2017
  • FAQ

With all these high-performance abilities, there are a few gotchas you have to consider. This article walks you through building an STK scenario...

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Converting Models to glTF for STK

  • Dec 14, 2018
  • FAQ

STK version 11.5 and later offers the ability to import high-quality glTF models for visualization. This article documents the setup required to...

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How to Use the Swath Tool

  • Dec 3, 2015
  • FAQ

Here are simple instructions on how to use the Swath Tool.

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How do I Make Color Articulations for a Model?

  • May 21, 2015
  • FAQ

This article explains how to add a color articulation to an MDL 3D model file.

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How to Create a Tundra Orbit

  • Mar 29, 2018
  • FAQ

To create a tundra orbit when inserting a new satellite, use the orbit wizard.

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