CV: Aerospace Technologist GNC


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Candidate Profile
 Date Submitted:18-05-2013
 Last Modified:19-05-2013 (04:54)
Job information
 Current job:Aerospace Technologist GNC
 Employment Term:Permanent
 Job location:Anywhere
 Date available:immediately
 Industry:Satellite Operators
 KeywordsGNC analysis and design, Systems Engineering, spacecraft operations
CV

AST Control Systems, GS 14

NASA Langley ED/ESB

August 2009 – Present

 

EXPERIENCE:

As a PI for Advanced Flight Computer (AFC) running Single Event Effects (SEEs) radiation detection testing algorithms on MISSE-X experiment, I conducted regular technical review meetings with manufactures (Space Micro), algorithm developers at JPL and MISSE X team members at Langley to resolve technical issues during design, development, and testing.

 

As a LaRC team member of IPAS (Integrated Power, Avionics, and software)  integration test bed facility  at JSC, I  coordinated with C&DH team to develop Model  Based System engineering (MBSE) models for the design,  analysis and testing of interfaces  (using Magicdraw & SysML tool) for the  Advanced Exploration Systems (AES) projects.

 

As a Common Instrument Interfaces (CII) project manager, directed the team members from JPL, GSFC, ARC, MSFC, and LaRC centers in developing CII guidelines for the Earth Science Missions.   Also arranged workshops with CII stakeholders and PIs for the new Earth Science instruments and reviewed NASA draft guidelines.

 

Studied the test setup details for the ORION Boiler Plate Test Article (BTA) drop test for impacting in the water at constant attitude and calculated velocity and position from accelerometers and rate gyros data.  Developed Matlab scripts and compared analytical impact velocity and position of BTA with the sensor measurements.

 

As a Lead Attitude Control system Engineer for CLARREO spacecraft, I ran the simulations for the analysis of control laws and made successful presentation at Peer and Integrated Mission review meetings.

DFRC/ Structures branch, GS 13, CA

May 2008 – August 2009

 

EXPERIENCE:

Reviewed design documents for the ARES launch abort system (LAS) structures and verified that strength, stiffness, and other requirements are satisfied with good safety margins. Also analyzed LAS Attitude Control motor design requirements, initial concepts, and PDR presentations.

 

Coordinated with team members and measured CG and mass properties of Crew Exploration Vehicle (CEV) using load cells.

 

Senior Software Engineer

Instrynx Technologies Corporation, CA

June 2007 - May 2008

 

EXPERIENCE:

Writing skills in developing Algorithm and equation specifications documents for NASA Exploration Systems Mission Directorate (ESMD) Constellation Program

 

Reviewed Crew Launch Vehicle (CLV) and Crew Exploration Vehicle (CEV) documents related to Propulsion Engineering domain including both solid and liquid rocket propulsion systems and discussed various technical approaches with other multi discipline modeling team members. Knowledge of producer/consumer maps and identification of the components and devices for several subsystems of the propulsion system models.

Had knowledge in developing mathematical models for different types of loads acting on the Flight vehicles and flight mechanics. Had experience in the rule based expert systems and gathering domain knowledge for the development of propulsion engineering models.

Lockheed Martin Company, CA

Senior Software Engineer

December 2005 – April 2007

 

EXPERIENCE:

Mission design, mission analysis and flight vehicle operational experience skills to identify primary and secondary mission objectives and transformation of these objectives to set of mission requirements and constraints on the space missions, and their operations.

 

Provided technical and leadership skills for the design, analysis and testing of Space Based Infrared Sensors (SBIRS) Spacecraft Flight Systems.

 

QSS Group Inc. /SGT, MD                  

Senior Systems Engineer

January 2002 – December 2005

 

EXPERIENCE:

Wrote  test scripts for normal spacecraft operations such as daily momentum dumping, station keeping and Delta V maneuvers.  Developed skills in command execution and anomalies resolution of spacecraft during orbit maneuvers.

 

Computer Sciences Corporation, MD

Senior Computer Scientist

August 2000 – January 2002

 

EXPERIENCE:

Mission Analysis and Mission design skills for the architecture for end-to-end Low Rate Information Transmission (LRIT) of GOES imagery in digital format.

 

Software Corporation of America, MD

Senior Software Engineer

October 1999 – August 2000

 

EXPERIENCE:

Integration testing for Science Key Parameter Generation Software (KPGS) for different NASA Spacecraft.

Level Zero processing of Instrument data, updating calibration files for different instruments and maintenance of Central Data Handling Facility (CDHF) database.

Netplex Inc., VA
Programmer/Analyst
01/1999 - 09/1999

 

EXPERIENCE:

Developed and tested software programs for Revenue Management system involving DB2, QMF and Embedded SQL.
 

Orbital Sciences Corporation, VA
Principal Systems Engineer
08/1997 - 10/1998

 

EXPERIENCE:

Defined attitude and orbit control subsystem architecture and interfaces for the Vegetation Canopy Lidar (VCL) program including propulsion requirements for the orbit raising and attitude maneuvers. As a lead Attitude Control System (ACS) engineer for VCL program, performed on orbit disturbance torque analysis and sized reaction wheels, thrusters and torque rods.


Reviewed VCL attitude knowledge and pointing requirements and participated in the selection of VCL sensor complement (LN 200S and AS201 star tracker) based on the covariance analysis for different gyros with program constraints such as cost and weight. Participated in the preparation of VCL concept, preliminary design, detailed design and critical design review documents and made effective presentations to the review panel.

 

Computer Sciences Corporation, MD
Computer Scientist
04/1990 - 08/1997

 

EXPERIENCE:

Served as task leader and provided technical direction for studying mission support problems for several NASA missions such as Hubble Space Telescope, Cosmic Background Explorer, Extreme Ultra-Violet Explorer, WIND, POLAR, SAMPEX, FAST, and DE. Experience in developing simulation models for the flight systems and flight vehicle designs.

Simulated accelerometers output used for controlling the WIND spacecraft orbit during the radial maneuvers using thrusters and studied the effect of torques due to thrusters on the accuracy of DELTA-V calculations.

Knowledge of launch system environment for the design of spacecraft (Acceleration, Vibration, Aerodynamic, Acoustic and Shock) subsystems.

Informatics Inc., MD
Senior Analyst
03/1988 - 03/1990

 

EXPERIENCE:

Developed simulator and  analyzed LACE spacecraft dynamics and control laws.
Also analyzed the trimming of pitch librations of LACE satellite using flexible booms for tracking the plumes of missiles and targets within the specified accuracy limits.

Indian Space Research Organization, India
Lead Integration & Flight testing
01/1970 - 08/1984

 

EXPERIENCE:

Provided integration and flight-testing operational support for several launch vehicles consisting of solid and liquid propulsion stage motors. Had experience in the design and development of propulsion systems

 

EDUCATION:

Ph.D Aerospace Engg, Howard University, USA

MS Computer Science, University of Maryland, USA

MS Engineering Mechanics, Indian Institute of Technology, India

BS Mechanical Engineering, Andhra University, India

 

TRAINING:

  • Proposal Writing course Nov. 03, 2011
  • Briefing and Presentation skills course Nov. 16, 2011
  • APPEL-Crucial Conversationsat NASA Headquarters in Washington, DC on

February 6-7, 2012

  • Attended NASA Project Management (PM) Challenge held in Orlando, Fla., on

Feb. 22- 23, 2012.

  • LaRC Project Management System Engineering course

 

AWARDS/HONORS:

NASA Group Achievement Award for IPAS Pathfinder Team 2012


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