Latest Space News
Thu, 20 Feb 2020 00:25:55 +0000
The “United States Space Force Vision for Satellite Communications” was approved by Gen. John Raymond on Jan. 23. SpaceNews.com
Wed, 19 Feb 2020 23:20:35 +0000
Spaceflight Industries’ decision to sell its rideshare launch services company, Spaceflight, to two Japanese firms will benefit both Spaceflight and its parent company, executives of the two companies say. SpaceNews.com
Wed, 19 Feb 2020 22:56:13 +0000
China launched a Long March 2D rocket from its inland Xichang launch center Wednesday, marking a return to activity following the Chinese New Year. SpaceNews.com
Wed, 19 Feb 2020 21:48:29 +0000
The Colorado Springs Chamber & EDC kicked off a $350,000 national public relations campaign. SpaceNews.com
Wed, 19 Feb 2020 20:14:47 +0000
Lockheed Martin says it lost $410 million on the first three commercial satellites built on its new LM2100 platform, including the JCSAT-17 satellite Arianespace launched Feb. 18 on an Ariane 5 rocket. SpaceNews.com
Wed, 19 Feb 2020 14:46:43 +0000
The head of NOAA’s space weather office used a recent hearing to caution that a failure of an aging spacecraft in the next few years could leave the agency “hurting a little bit” in its ability to monitor solar activity. SpaceNews.com
Wed, 19 Feb 2020 01:55:21 +0000
With just a week before the first scheduled launch in DARPA’s responsive launch competition, the agency is tweaking the rules to allow the sole remaining company to perform both launches from the same spaceport. SpaceNews.com
Tue, 18 Feb 2020 23:57:21 +0000
Arianespace completed its third launch of the year Feb. 18, sending a Japanese communications satellite and a South Korean weather satellite into geostationary transfer orbits.  SpaceNews.com
Tue, 18 Feb 2020 20:11:09 +0000
Radio-frequency-mapping startup Kleos Space on Feb. 18 said it received a $3.4 million loan from Dubai-based Winance to keep the company “well funded” while it awaits the launch of its first satellites.  SpaceNews.com
Tue, 18 Feb 2020 17:41:36 +0000
Space Adventures announced Feb. 18 that it has an agreement with SpaceX to fly a dedicated Crew Dragon mission that would send four space tourists on a mission to a relatively high Earth orbit. SpaceNews.com
Mon, 17 Feb 2020 22:11:05 +0000
In a recent SpaceNews Op-ed, Louis Friedman, co-founder and executive director emeritus of The Planetary Society, argues that the U.S. should pursue “a policy more directed to Mars and away from commercial participation. With all due respect to Friedman, I totally disagree. Focusing NASA programs on distant (in space, time, and money) goals can only ensure that U.S. space policy remains empty talk with no action. SpaceNews.com
Mon, 17 Feb 2020 21:16:20 +0000
Blue Origin formally opened a factory Feb. 17 that the company plans to use to produce engines both for its vehicles and for United Launch Alliance’s Vulcan rocket. SpaceNews.com
Mon, 17 Feb 2020 21:05:51 +0000
Intelsat has abandoned plans to order a one-for-one replacement for the Intelsat-29e satellite that failed last year and will rely instead on leased capacity, a borrowed satellite, and the newly ordered Intelsat-40e spacecraft to fill a coverage gap over North and South America.  SpaceNews.com
Mon, 17 Feb 2020 18:57:13 +0000
SpaceX completed its fifth dedicated Starlink launch Feb. 17, successfully sending 60 satellites into low Earth orbit while missing what would have been the company’s 50th booster recovery.  SpaceNews.com
Sun, 16 Feb 2020 20:46:33 +0000
China has quietly rolled out a new Long March 7A rocket at a coastal launch site in preparation for launch of a ‘technology verification satellite’. SpaceNews.com
Sun, 16 Feb 2020 14:42:14 +0000
The Commerce Department is once again requesting a large budget increase for its Office of Space Commerce in order to work on space traffic management activities after Congress rejected a similar request last year. SpaceNews.com
Sat, 15 Feb 2020 22:00:44 +0000
A Cygnus cargo spacecraft launched Feb. 15 carrying more than three tons of supplies and experiments for the International Space Station. SpaceNews.com
Sat, 15 Feb 2020 14:20:10 +0000
NASA awarded a contract to Rocket Lab Feb. 14 for the launch of a cubesat mission that will serve as a precursor for the agency’s planned lunar Gateway. SpaceNews.com
Fri, 14 Feb 2020 22:55:11 +0000
As Astra prepares for its first orbital launch attempt, the company is setting expectations accordingly and taking the long view towards its goal of frequent, low-cost access to space. SpaceNews.com
Fri, 14 Feb 2020 19:30:37 +0000
DirecTV’s Spaceway-1 satellite has been retired to a graveyard orbit 500 kilometers above the geostationary arc, eliminating the risk of the malfunctioning satellite exploding in an orbit populated by active satellites.  SpaceNews.com
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    Personal information
     Name:<withheld>
     Age:<withheld>
     Country:<withheld>
     Location:<withheld>
    Contact information
     Email:<withheld>
     Phone:<withheld>
     Mobile:<withheld>
    Candidate Profile
     Date Submitted:02-05-2013
     Last Modified:09-12-2016 (05:20)
    Job information
     Current job:Lead Avionics Engineer
     Employment Term:Either
     Job location:Europe only
     Date available:within 2 months
     Industry:Civil Agencies/International Organizations, Satellite Manufacturers and Subcontractors, Satellite Operators, Consulting/Engineering Services, Space Tourism
     Keywordsattitude control, orbital control, flight dynamics, attitude determination, guidance and navigation, mission operations, matlab, simulink, GNC, AOCS
    CV

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    SUMMARY OF QUALIFICATIONS

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    Accomplished guidance, navigation, and control engineer with 17 years of research and industrial experience designing, implementing, and testing algorithms, software, and simulation tools for space vehicles. Proven track record of leading the technical effort to implement GN&C subsystems from preliminary design through integration and test for new space companies and NASA. Significant projects include:

    * Designed and coded the on-board attitude determination and orbit navigation modules for the Cygnus advanced maneuvering spacecraft, which has flown several successful missions to the ISS.

    * Developed the GN&C subsystem architecture and 6-DOF simulation environment for the Bigelow B330 space habitat.

    * Designed the attitude determination and control system for NASA Goddard's Magnetospheric Multiscale Mission (MMS), a constellation launched in 2014 and currently operational.

    * Acted as one of the original architects of the attitude determination and control system design now used on Orbital Sciences' entire fleet of successful GEOStar commercial geosynchronous communications spacecraft.

    ~~~~~~~~~~~~~~~~~~~~~~

    AREAS OF EXPERTISE

    ~~~~~~~~~~~~~~~~~~~~~~

    • Spacecraft Attitude Control and Estimation        •  Modeling and 6-DOF Simulation

    • Nonlinear and Robust Control                           •  Trajectory Optimization

    • Mission Operations                                          • Orbit Determination 

    • Structural Dynamics                                        • Kalman Filtering 

    • Flight Software Development               • MATLAB/Simulink, C/C++, UML, Unix, SVN, CVS, Git

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~

    PROFESSIONAL EXPERIENCE

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~

    Lead Engineer, Avionics Group

    Firefly Space Systems - Austin, TX

    March 2016 to Present

    * Lead engineer for the Alpha launch vehicle autonomous flight termination system (AFTS). Manage schedule, manpower, and budget.

    * Develop AFTS architecture, define subsystem requirements, perform hardware component trade studies, and code safety-critical software.

    * Interface with the FAA and RCC to acquire launch license. 

    Guidance, Navigation, and Controls Subsystem Lead

    Bigelow Aerospace - Las Vegas, NV

    January 2015 to January 2016

    Bigelow B330 Space Habitat

    * Acted as sole GN&C subsystem engineer in the company. Defined GN&C concept of operations, system architecture, and requirements.

    * Developed a 6-DOF simulation and analysis tool from the ground-up. Designed propellant optimal phase-plane attitude controller.

    Bigelow Expandable Activity Module (BEAM)

    * Developed mathematical model of BEAM deployment dynamics and performed monte carlo analyses.

    * Gained approval from the NASA Space Station Program Control Board (SSPCB) that BEAM may safely deploy on the ISS.

    * Authored the procedure that was used by the ISS astronauts to expand BEAM on-orbit. 

    Sr. Principal Engineer, GN&C Group

    Orbital Sciences Corporation - Dulles, VA

    March 2009 to March 2013

    Gravity and Extreme Magnetism Small Explorer (GEMS) Spacecraft

    * Lead GN&C analyst for the GEMS program. Directed the on-board attitude control, estimation, and orbit determination design.

    * Successfully led the GN&C subsystem development through the critical design review milestone ahead of schedule and under budget.

    Cygnus Advanced Maneuvering Spacecraft

    * Designed, coded, and tested the on-board attitude determination and orbit navigation modules. Flight code was written in C++ using a UML framework.

    * Vehicle has flown several successful missions to the ISS.

    Sr. Principal Engineer

    NASA Goddard Space Flight Center (Contractor) - Greenbelt, MD

    January 2008 to March 2009

    Magnetospheric Multiscale Mission (MMS)

    * Developed the 6-DOF, high-fidelity simulation tool used for the MMS constellation control system design.

    * Designed the primary on-board attitude determination system.

    * Spacecraft was launched in 2014 and is operational.

    Sr. Principal Engineer, GN&C Group

    Orbital Sciences Corporation - Dulles, VA

    1998 to 2008

    Contributed to the attitude determination and control design of most Orbital Sciences' spacecraft over a 14-year period. Have performed roles as both lead GN&C subsystem engineer and technical expert. Highlights include:

    Lead Attitude Control System Engineer, NSS-9 Spacecraft

    * Acted as lead ACS subsystem engineer for the NSS-9 geosynchronous commercial communications spacecraft, currently operational.

    * Managed analyses required for milestone reviews, software verification testing, schedule, and budget.

    Far Ultraviolet Spectroscopic Explorer (FUSE) Spacecraft

    * Devised innovative, real-time optimal slew guidance algorithm which enabled science mission to continue well past design life and after three out of four reaction wheels had failed.

    * Optimal slew guidance scheme increased feasible science target window from 1% to 70% of nominal mission window.

    GEOStar Commercial Communications Satellites

    * Designed and implemented the primary and back-up gyroless attitude determination system for Orbital's first three-axis stabilized commercial communications satellite.

    * Attitude control and estimation design is now being used on Orbital's entire product line of orbiting geosynchronous communications spacecraft.

    Sensor Calibration Software Package

    * Developed an alignment Kalman Filter tool used to estimate on-orbit sensor alignment and biases in redundant gyros and star trackers from telemetry.

    * Ground software has successfully been used to calibrate the Orbview-3, DAWN, AIM, and NuSTAR spacecraft.

    Orbview-3 Spacecraft

    * Led the development of the image mode command software in the mission planning system.

    * Spacecraft began acquiring 1 meter panchromatic and 4 meter multispectral imagery in 2003.

    Engineer, Structural Dynamics Group

    General Dynamics Space Systems - San Diego, CA

    1989 to 1992

    Member of the team which designed the Atlas/Centaur class commercial launch vehicles. Performed spacecraft coupled loads analyses using NASTRAN and DMAP. Developed a 6-DOF analysis tool used to compute launch vehicle and spacecraft loads during critical maximum dynamic pressure gust event. 

    ~~~~~~~~~~~~~

    EDUCATION

    ~~~~~~~~~~~~~

    1998 Aerospace Engineering (Control Theory)

    Doctor of Philosophy, - The University of Texas at Austin, Austin, TX

    * Dissertation:  Linear Parameter Varying Representations for Nonlinear Control Design

    * Performed doctoral research under Jeff Shamma.

    * Coursework included all topics in applied mathematics, statistical estimation theory, robust & optimal control, and flight dynamics.  

     

    1988 Aerospace Engineering

    Master of Science, - Virginia Polytechnic Institute & State University, Blacksburg, VA

     

    1987 Aerospace & Ocean Engineering

    Bachelor of Science, - Virginia Polytechnic Institute & State University, Blacksburg, VA

     

    ~~~~~~~~~~~~~~~~

    PUBLICATIONS

    ~~~~~~~~~~~~~~~~

    L. Carter and J. Shamma, Gain-Scheduled Bank-to-Turn Missile Autopilot Design Using Linear Parameter Varying Transformations, AIAA Journal of Guidance, Control, and Dynamics, Vol. 19, No. 5, Sept.-Oct. 1996.

     

    ~~~~~~~~~~

    AWARDS

    ~~~~~~~~~~

     

    * Certificate of Appreciation, Radarsat-2 Program, Orbital Sciences Corporation.

    * Graduate Research Fellowship, Air Force Office of Scientific Research.

    * University Fellowship Award, The University of Texas at Austin.

    * Pacesetter Award, General Dynamics Space Systems Division.

     

     


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