Latest Space News
Thu, 24 May 2018 15:14:49 +0000
As the U.K. continues to wrangle with the EU over Galileo, there is growing speculation that the country could seek to develop its own independent global navigation system with Australia — or even Japan. SpaceNews.com
Thu, 24 May 2018 14:06:41 +0000
Bombastic and colorful, Rogozin’s international profile shot up significantly in 2014 when, in response to the first round of Western sanctions against Moscow for its annexation of Crimea, he tweeted that NASA could use a trampoline to reach the International Space Station. SpaceNews.com
Thu, 24 May 2018 13:22:56 +0000
Technological advances have opened up a wide range of propulsion options for satellites, but companies developing those systems don’t expect a single approach to become dominant. SpaceNews.com
Thu, 24 May 2018 13:00:07 +0000
ICEYE raised $34 million in a Series B investment round, bringing the Finnish company’s total funding to $53 million, ICEYE announced May 24. SpaceNews.com
Thu, 24 May 2018 12:47:15 +0000
PASADENA, California — Satellite manufacturers and operators attending the Space Tech Expo here offered contrasting views on how long satellites should continue to work in orbit. For years, government and commercial operators sought to extend the life of satellites by sending them into orbit with plenty of fuel and components designed to withstand 15 years […] SpaceNews.com
Thu, 24 May 2018 11:13:50 +0000
In his first congressional testimony since becoming NASA administrator a month ago, Jim Bridenstine sought to reassure Senate appropriators about the status of several agency programs threatened with cancellation, as well as his own views on climate change. SpaceNews.com
Thu, 24 May 2018 02:30:48 +0000
A major challenge facing companies planning to perform on-orbit servicing will be ensuring satellite operators do not view their activities as potential threats. SpaceNews.com
Thu, 24 May 2018 02:10:04 +0000
The U.S. Air Force's plans to respond to emerging threats by launching constellations of satellites. That strategy has important implications for spacecraft manufacturing and testing. SpaceNews.com
Wed, 23 May 2018 23:31:37 +0000
A cooling problem with a key instrument on a weather satellite launched less than three months ago could degrade its performance for at least part of each day, with potential but still undetermined effects on weather forecasts, officials said May 23. SpaceNews.com
Wed, 23 May 2018 21:11:17 +0000
The U.S. Federal Communications Commission rejected a Eutelsat application for a satellite that would use the same spectrum as one planned by Intelsat. SpaceNews.com
Wed, 23 May 2018 20:43:25 +0000
An NBN executive estimated the business service will use 15 percent of the capacity on the Sky Muster satellite system. SpaceNews.com
Wed, 23 May 2018 16:15:20 +0000
U.K. Air Chief Marshall Sir Stephen Hillier says the cost-effective technology with its short development cycles would enable the military to always take advantage of the latest technological developments, unlike the traditional slow-paced military satellite projects. SpaceNews.com
Wed, 23 May 2018 13:22:07 +0000
AGI, in partnership with a Canadian company, announced May 23 that it has established the first commercial radar system capable of tracking objects in geostationary orbit and beyond. SpaceNews.com
Wed, 23 May 2018 12:23:15 +0000
In the future, the U.S. Air Force will launch satellites of all different sizes for customers with varying degrees of risk tolerance. SpaceNews.com
Wed, 23 May 2018 11:18:11 +0000
As SpaceX launched another Falcon 9 with a previously-flown first stage May 22, both the company and its competitors are seeing a growing acceptance of reusable vehicles in the overall market. SpaceNews.com
Wed, 23 May 2018 00:18:15 +0000
The launch industry is facing a shakeout in the coming years that could result in the failure of the vast majority of companies developing new vehicles, industry executives warned at a conference. SpaceNews.com
Tue, 22 May 2018 22:32:57 +0000
SpaceX says it will not go after any of the $2 billion in rural broadband subsidies the U.S. Federal Communications Commission will begin doling out this summer under its Connect America Fund II program. SpaceNews.com
Tue, 22 May 2018 22:06:09 +0000
A SpaceX Falcon 9 still sporting soot from its last mission successfully launched May 22 with five Iridium Next satellites and two science satellites for NASA and the German Research Center for Geosciences. SpaceNews.com
Tue, 22 May 2018 18:09:05 +0000
From 2000 to 2017, the U.S. government contracted more than $26 billion in foreign military sales to the Republic of Korea, including advanced combat aircraft and missile defense systems. SpaceNews.com
Tue, 22 May 2018 17:12:54 +0000
Startups backed primarily by private venture capital have announced plans to launch dozens of small SAR satellites within a decade to take advantage of the miniaturization of electronics. SpaceNews.com
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  • CV: Physics & Astronomy PhD

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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:16-06-2015
     Last Modified:16-06-2015 (07:27)
    Job information
     Current job:Physics & Astronomy PhD
     Employment Term:Temp/Contract
     Job location:Anywhere
     Date available:immediately
     Industry:Civil Agencies/International Organizations, Satellite Manufacturers and Subcontractors, Satellite Operators, , , Launch Systems, Consulting/Engineering Services
     KeywordsSoftware development, data analysis, physics, Python, C++, C
    CV

    Scientist with experience in software development looking for a technical challenge


    Education

    March 2 2015 Ph.D. in Science (Physics & Astronomy) Radboud University Nijmegen

    Thesis: “Measuring radio emission from air showers with LOFAR”. Wrote a pipeline to identify and calibrate nanosecond timescale radio pulses in data from the worlds largest low frequency radio telescope. Performed statistical analysis on the resulting dataset to characterize the radio emission. Contributed to the achievement of a major breakthrough in the field: the first high-precision radio measurement of the air shower maximum. Found a link between cosmic ray radio emission and thunderstorms opening up a new field of interdisciplinary research.

    May 27 2010 Master Physics & Astronomy (cum laude) Radboud University Nijmegen

    Thesis: “V348 Puppis”. Used non-equidistant sampling period analysis and Doppler mapping techniques on time resolved spectroscopic observations of a cataclysmic variable. Followed elective courses on numerical methods (integration, optimization, Monte Carlo simulations and neural networks) in addition to advanced courses on physics.

    August 31 2007 Bachelor Physics & Astronomy Radboud University Nijmegen

    Thesis: “LORUN - A radio telescope for the detection of cosmic rays”. Installed a prototype radio detector and wrote analysis software in C++ and Matlab/Octave.

    Skills

    Programming

    5+ years of experience with C, C++ and Python. Designed and implemented a pipeline in Python and C++, with OpenMP for parallel programming, to process many terabytes of timeseries data. Implemented an SQL database (PostgreSQL) backend and a web frontend for said pipeline. Wrote a C library with Python bindings for very fast coordinate matching of astronomical catalogs. Developed a real-time backend for a radio telescope, accepting data over a TCP or UDP socket and correlating it on the GPU using CUDA. Additional experience with many other programming languages.

    For some examples of code I have written, see my github repository at: https://github.com/pschella.

    Linux / UNIX

    15+ years of experience with OSX and Linux on both desktops and servers. Managed the purchase, configuration, installation and operation of a still growing 45 node Linux based computer cluster with 0.5 PB of storage to handle all computational needs of the Nijmegen Astrophysics department.

    Communication, collaboration and presentation

    Experience with collaborative (open source) development. Contributed the lombscargle routine to SciPy and the cubehelix colormap to matplotlib. Taught several short courses on Python for scientists and wrote an introductory tutorial on the topic that is now used by many people in multiple universities. Presented talks at international and national conferences, seminars and workgroup meetings. Published multiple papers in high-impact peer reviewed journals (3 first author, 10+ co-author, several more in preparation).

    Languages: Dutch (native), English (full professional proficiency), German (limited working proficiency).

    Work experience

    August 2009 -
    February 2010 Software developer South African Astronomical Observatory

    Implemented part of the data reduction pipeline for the slot mode of the SALTICAM photometer and the Berkeley Visible Imaging Tube instruments of the Southern African Large Telescope. Using Python, C, FORTRAN, IRAF/PyRAF and Qt.

    July 2008 -
    April 2009 Student Assistant Radboud University Nijmegen

    Developed data acquisition and analysis software for a two-element radio interferometer in C, Python and LabView. Assisted in teaching a course on Radio Astronomy for freshmen and co-wrote the lecture notes for this course. Taught an introductory practicum on Radio Astronomy with distributed antenna arrays.

    Selected Publications

    • Probing Atmospheric Electric Fields in Thunderstorms through Radio Emission from Cosmic-Ray-Induced Air Showers, Schellart, P., Trinh, T. N. G., et al., LOFAR Collaboration, 2015, Physical Review Letters, 114, 16
    • Measuring a Cherenkov ring in the radio emission from air showers at 110-190 MHz with LOFAR, Nelles, A., Schellart, P., et al., LOFAR Collaboration, 2015, Astroparticle Physics, 65, 11
    • The shape of the radio wavefront of extensive air showers as measured with LOFAR, Corstanje, A., Schellart, P., et al., LOFAR Collaboration, 2015, Astroparticle Physics, 61, 22
    • Polarized radio emission from extensive air showers measured with LOFAR, Schellart, P. et al., LOFAR Key Science Project Cosmic Rays, 2014, Journal of Cosmology and Astroparticle Physics, 10, 14
    • Detecting cosmic rays with the LOFAR radio telescope, Schellart, P., Nelles, A., et al., LOFAR Collaboration, 2013, Astronomy and Astrophysics, 560, A98
    • LOFAR: The Low-Frequency Array, van Haarlem, M. P. et al., LOFAR Collaboration, 2013, Astronomy and Astrophysics, 556, A2
    • Radio galaxies of the local universe. All-sky catalog, luminosity functions, and clustering, van Velzen, S., Falcke, H., Schellart, P., Nierstenhöffer, N., & Kampert, K.-H., 2012, Astronomy and Astrophysics, 544, A18

    Full list of publications available online or upon request.

    Personal Note

    Outside of work I enjoy traveling & nature, seeing the world, meeting old friends and making new ones. In rock climbing and bouldering, both indoor and outdoor, is where I find the perfect combination of challenging myself and working together to solve problems.


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