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Tue, 16 Jul 2019 21:45:03 +0000
Esper told the SASC that, if confirmed, he intends to get involved in the Space Force legislative debate. SpaceNews.com
Tue, 16 Jul 2019 18:11:21 +0000
“The closure of this round is really allowing us to accelerate the ability to move into higher levels of production for these tip of the spear type of customers, and those are the space-related defense contractors.” SpaceNews.com
Tue, 16 Jul 2019 16:22:19 +0000
As part of our monthlong commemoration of the 50th anniversary of the Apollo 11 moon landing,  SpaceNews is proud to present this special digital edition. SpaceNews.com
Tue, 16 Jul 2019 15:32:46 +0000
NASA Administrator Jim Bridenstine said July 15 that, as NASA presses ahead with plans to return humans to the moon by 2024, he will not rule out a first human mission to Mars as soon as 2033. SpaceNews.com
Tue, 16 Jul 2019 08:00:38 +0000
I believe that the days are receding rapidly when we considered ourselves a niche and, from the perspective of the wider world, a somewhat invisible industry. SpaceNews.com
Mon, 15 Jul 2019 22:07:43 +0000
SpaceX said July 15 that the explosion that destroyed a Crew Dragon spacecraft during a ground test in April was likely caused by oxidizer that leaked into the spacecraft’s propulsion system and destroyed a valve, but didn’t give a firm schedule for resuming test flights. SpaceNews.com
Mon, 15 Jul 2019 20:57:02 +0000
Secretary of the Navy Richard Spencer became the third acting secretary of defense since Jim Mattis resigned. SpaceNews.com
Mon, 15 Jul 2019 20:25:02 +0000
The committee cited concerns about the "turmoil surrounding the Space Development Agency." SpaceNews.com
Mon, 15 Jul 2019 20:18:20 +0000
Under newly proposed rules, smallsat operators will be able to choose a licensing path — for authorization as a domestic operator or for U.S. market access as a foreign operator — for $30,000 instead of the $472,000 fee required today for satellites in non-geosynchronous orbits.  SpaceNews.com
Mon, 15 Jul 2019 19:02:33 +0000
The House and Senate voted in support of a space service to be nested inside the Air Force, but much still remains unresolved. SpaceNews.com
Mon, 15 Jul 2019 10:10:35 +0000
A month after NASA rolled out a strategy to increase commercial use of the International Space Station, some in Congress are skeptical of the effort. SpaceNews.com
Sun, 14 Jul 2019 14:14:03 +0000
Kevin Bell with The Aerospace Corporation describes the 59-year-old organization as an “innovation shop that helps invent and maintain essentially the corporate knowledge for the U.S. government.” SpaceNews.com
Sun, 14 Jul 2019 10:12:49 +0000
Proposed changes to the National Security Space Launch program that Smith introduced in the HASC version of the NDAA made it into the House bill. SpaceNews.com
Fri, 12 Jul 2019 23:10:19 +0000
NASA Administrator Jim Bridenstine said he reassigned the agency’s human spaceflight head, Bill Gerstenmaier, because time was limited to address cost and schedule issues with the agency’s key exploration programs and still meet a 2024 deadline for returning humans to the moon. SpaceNews.com
Fri, 12 Jul 2019 22:18:21 +0000
NASA awarded a $73.7 million contract to Made In Space to additively manufacture beams on the Archinaut One satellite scheduled to launch in 2022. SpaceNews.com
Fri, 12 Jul 2019 16:54:22 +0000
Airbus and the French Space Agency CNES have agreed to cofinance a constellation of four Earth observation satellites while leaving the door open for Airbus to finance additional satellites with other partners.  SpaceNews.com
Fri, 12 Jul 2019 13:50:53 +0000
China appears set to deorbit its Tiangong-2 space lab in the near future, according to a social media release from the China Manned Space Engineering Office. SpaceNews.com
Fri, 12 Jul 2019 13:45:19 +0000
The initial prototype of SpaceX’s next-generation reusable launch vehicle will make its first, albeit low-altitude, test flight early next week, Elon Musk announced July 12. SpaceNews.com
Fri, 12 Jul 2019 09:21:11 +0000
NASA’s leadership offered few details July 11 about the sudden reassignment of two top officials in its human spaceflight program the day before, a move that drew criticism from leading House members. SpaceNews.com
Fri, 12 Jul 2019 08:22:41 +0000
The chairman of the Senate’s space subcommittee says he’s working with colleagues on a “bold” new NASA authorization bill to direct the future of the agency’s human spaceflight program. SpaceNews.com
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  • CV: Lead Avionics Engineer

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    Personal information
     Name:<withheld>
     Age:<withheld>
     Country:<withheld>
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    Contact information
     Email:<withheld>
     Phone:<withheld>
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    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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