Latest Space News
Thu, 14 Nov 2019 23:52:00 +0000
EchoStar has ordered two tiny S-band satellites from Tyvak Nano-Satellite Systems to jumpstart a low-Earth-orbit constellation using spectrum gained through its October acquisition of IoT startup Helios Wire.  SpaceNews.com
Thu, 14 Nov 2019 22:06:27 +0000
NASA paid Boeing nearly $300 million more than originally planned in its commercial crew contract in part because of agency concerns that the company might drop out of the program, a new report claims. SpaceNews.com
Thu, 14 Nov 2019 21:47:58 +0000
SDA is the new term replacing Space Situational Awareness, according to an Oct. 4 memo from Air Force Space Command. SpaceNews.com
Thu, 14 Nov 2019 20:29:46 +0000
Loft Orbital has raised a fresh $13 million to continue development of a constellation of small satellites purpose-built to carry a mix of payloads for customers who don’t want to fly their own satellites.  SpaceNews.com
Thu, 14 Nov 2019 17:19:54 +0000
With growing bipartisan skepticism that NASA’s current plan to return humans to the moon by 2024 is achievable, members of the House Science Committee used a Nov. 13 hearing to advocate for a different, and arguably more conventional, approach. SpaceNews.com
Thu, 14 Nov 2019 12:04:44 +0000
SpaceX successfully tested Nov. 13 the thrusters used as part of the abort system for its Crew Dragon spacecraft, nearly seven months after a similar test resulted in the loss of another spacecraft. SpaceNews.com
Thu, 14 Nov 2019 04:49:10 +0000
The Senate Commerce Committee approved Nov. 13 a NASA authorization bill introduced a week earlier to extend the life of the International Space Station and support other agency programs. SpaceNews.com
Thu, 14 Nov 2019 01:37:18 +0000
Launcher won its first government funding when the U.S. Air Force awarded the the Brooklyn-based startup $1.5 million to accelerate development and testing of its E-2 rocket engine. SpaceNews.com
Wed, 13 Nov 2019 22:52:54 +0000
Chairman Adam Smith said House-Senate divide is deepening over the establishment of a Space Force SpaceNews.com
Wed, 13 Nov 2019 21:01:43 +0000
Mark Rigolle, CEO of LeoSat, told SpaceNews Nov. 13 that the company laid off all 13 employees — himself included — in August after its earlier investors decided not to fund the company any longer.  SpaceNews.com
Wed, 13 Nov 2019 19:41:33 +0000
Isotropic Systems has completed two-way communications tests of its electronically steered antenna using Avanti’s Hylas-4 satellite. SpaceNews.com
Wed, 13 Nov 2019 17:48:11 +0000
In its ongoing quest to increase launch vehicle production, Rocket Lab has unveiled a new industrial robotic system designed to speed up manufacturing of its Electron rocket. SpaceNews.com
Wed, 13 Nov 2019 17:03:25 +0000
The former chairman of the House aviation subcommittee and adviser to United Launch Alliance argues that all commercial spaceflight companies should support, rather than disrupt, the FAA's ongoing effort to streamline existing launch licensing processes. SpaceNews.com
Wed, 13 Nov 2019 12:56:40 +0000
China launches six remote sensing satellites into orbit with two launches inside three hours from sites in north China. SpaceNews.com
Wed, 13 Nov 2019 11:00:40 +0000
A new study says companies can build, launch and operate constellations to gather global imagery with a resolution of one meter for a fraction of the cost of previous constellations. SpaceNews.com
Wed, 13 Nov 2019 10:29:40 +0000
A NASA official warned that extended delays in finalizing a fiscal year 2020 budget for the agency could have implications for its ability to stay on schedule for returning humans to the moon in 2024. SpaceNews.com
Wed, 13 Nov 2019 00:14:41 +0000
Two astronauts are set to begin a series of spacewalks this week to repair an instrument outside the International Space Station that was never designed to be serviced in orbit. SpaceNews.com
Tue, 12 Nov 2019 22:10:29 +0000
Will Roper said an extended CR is especially damaging for space "where we are trying to build systems to be survivable." SpaceNews.com
Tue, 12 Nov 2019 17:12:03 +0000
Megaconstellation startup OneWeb and its largest investor Softbank asked the New York Supreme Court to dismiss a lawsuit from Intelsat, arguing that Intelsat failed to finalize rights it claimed it had to resell OneWeb satellite capacity.  SpaceNews.com
Tue, 12 Nov 2019 13:40:20 +0000
The senior secured loan will finance BlackSky’s infrastructure and product development. SpaceNews.com
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  • CV: Graduate Research Assistant

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    Personal information
     Name:<withheld>
     Age:<withheld>
     Country:<withheld>
     Location:<withheld>
    Contact information
     Email:<withheld>
     Phone:<withheld>
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    Candidate Profile
     Date Submitted:12-11-2014
     Last Modified:12-11-2014 (07:57)
    Job information
     Current job:Graduate Research Assistant
     Employment Term:Permanent
     Job location:Anywhere
     Date available:within 2 months
     Industry:Civil Agencies/International Organizations, Satellite Manufacturers and Subcontractors, Satellite Operators, Consulting/Engineering Services
     KeywordsPhD Researcher in GNC systems, Attitude Control, Micropropulsion, Flight dynamics, Attitude dynamics.
    CV

    Objective: A full time position working on spaceflight programs, focusing in the areas of attitude dynamics and control or propulsion systems.

    Education:

    Cornell University, Sibley School of Mechanical and Aerospace Engineering. Ithaca, NY

    Ph.D. Candidate in Aerospace Engineering, December 2014 (expected)

    Ph.D. research in electrolysis propulsion systems and spacecraft dynamics

    Advisor: Dr. Mason Peck

    GPA: 3.91/4.0

    Massachusetts Institute of Technology, Cambridge, MA

    S.B. in Aerospace Engineering, June 2009

    GPA: 4.7/5.0

    Relevant Courses:

    Spacecraft Dynamics and Mission Design, Space Propulsion, Space Systems Engineering, Celestial Mechanics, Multivariable Control Theory, Robust Control, GPS Theory and Design

    Research Experience:

    Space Systems Design Studio, Cornell University, Ithaca, NY        2009 – present

    -    Designed and developed a novel propulsion system for CubeSats based on electrolysis of water

    -    Led a team of undergraduate researchers currently developing CubeSat mission to demonstrate the propulsion system

    -    Developed prototype to test the performance of propulsion system in the vacuum chamber

    -    Analyzed dynamics and attitude control of spinning CubeSat

    -    Served as Guest Investigator for Violet Nanosatellilte. Designed Control Moment Gyroscope steering laws to be tested in orbit

    Space Systems Engineering, MIT, Cambridge, MA             2008 – 2009

    -    Architected communications subsystem for CASTOR flight program

    -    Designed, built and tested deployable arrays of solar cells to power a nanosatellite selected for the Air Force’s UNP Nanosat-6 program

     

    Aerospace Controls Laboratory, MIT, Cambridge, MA     2007

    -    Constructed stations for autonomously recharging the batteries of UAV helicopters. Integrated the necessary power electronics onto landing platform

    -    Designed and machined a three degree of freedom aluminum testing mechanism for flying helicopters indoors

    Work Experience:             

    Dragonfly Pictures, Inc., Essington, PA    Summer 2008

    -   Coordinated flight tests leading to autonomous flight of an electric, tandem-rotor UAV

    -  Developed tools to predict stability of UAV and alleviate pitch oscillations

    Teaching Experience:

    Spacecraft Engineering, Cornell University, Ithaca, NY     Spring 2012 and 2013

    -  Teaching Assistant for junior/senior level spacecraft engineering class for two semesters

    -  Prepared and delivered three lectures on space propulsion, as well as guest lectures 

    -  Developed homework assignments and solutions for the course

    System Dynamics, Cornell University, Ithaca, NY                Summer 2013

    -  Teaching Assistant for sophomore/junior level class

    -  Prepared laboratory experiments and led laboratory sections

    -  Prepared and delivered guest lectures

    Skills:

    Programming/Computer

    -   MATLAB/Simulink

    -   ANSYS

    -  Solidworks

    -  Office and Adobe suites

    -  National Instruments DAQ

    Foreign Languages:

    -  Fluent in Spanish and English

    Other:

    -  Machining: Mill/Lathe

    -  Vacuum chamber operation

    Awards:

    -  Best Presentation, Sibley Graduate Research Symposium, Cornell University. Ithaca NY March 2014

    -  Best Presentation in Session, AIAA Guidance, Navigation and Control Conference. Minneapolis, MN Aug. 2013

    -  Best Student Poster, Desktop Delta-V Conference, Brown University. Providence, RI Feb. 2011

    Publications:

    Zeledon and Peck, "Attitude Dynamics and Control of a 3U CubeSat with Electrolysis Propulsion," AIAA Guidance, Navigation, and Control Conference, Boston, MA, Aug 19 22, 2013.

    Jones, Zeledon and Peck, "A Generalized Framework for Linearly Constrained Control Moment Gyro Steering," AIAA Journal of Guidance, Control, and Dynamics, Vol. 35, No. 3, pp. 1094-1103, 2012.

    Zeledon and Peck, "Performance Testing of a CubeSat-scale Electrolysis Propulsion System," AIAA Guidance, Navigation, and Control Conference, Minneapolis, MN, Aug 13 16, 2012.

    Zeledon and Peck, "Electrolysis Propulsion for CubeSat-Scale Spacecraft," AIAA Space 2011 Conference & Exposition, Long Beach, CA, Sep 27-29, 2011.

    Zeledon and Peck, "Singularity-Free Constrained Steering Law for Triplet Control Moment Gyros," AIAA Astrodynamics Specialist Conference, Toronto, ON, Aug 2-5, 2010.


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