Joshua Kammer

Planetary Scientist · Southwest Research Institute
6220 Culebra Rd · San Antonio, TX 78238 · (210) 522-5826 · jkammer@swri.edu

Experience

Senior Research Scientist

Southwest Research Institute, San Antonio, TX
October 2020 - Present

Research Scientist

Southwest Research Institute, San Antonio, TX

Research Focus: NASA's Juno mission to Jupiter - Juno-UVS Team

- Analysis of Juno-UVS spectra of ultraviolet emission from Jupiter's aurorae

- Characterization of high-energy radiation environment as seen by Juno-UVS

- Prediction of radiation conditions for planning operations during future orbits

July 2016 - October 2020

Postdoctoral Researcher

Southwest Research Institute, Boulder, CO

Research Focus: NASA's New Horizons mission to Pluto - Atmospheres Team

- Pluto encounter preparation and mission data analysis/tool development

- Atmospheric composition retrieval using ultraviolet solar/stellar occultations from NH-Alice

- Derived profiles of Pluto haze ultraviolet absorption for comparison with models

October 2014 - July 2016

Graduate Research Assistant

California Institute of Technology, Pasadena, CA

PhD Advisor: Yuk L. Yung

Research Focus: Chemical composition of Titan's upper atmosphere

- Atmospheric retrieval from ultraviolet observations of stellar occultations made by Cassini UVIS

- Seasonal and spatial distributions of nitrogen, hydrocarbons, and nitrile compounds on Titan

- Observationally constrained modeling of Titan photochemistry and organic aerosol production

PhD Advisor: Heather A. Knutson

Research Focus: Characterization of extrasolar planetary atmospheres

- Analysis of exoplanet transit and secondary eclipse observations utilizing the Spitzer Space Telescope

- Search and discovery of super-Earth sized planets around bright nearby stars

- Testing correlation of exoplanet mass and atmospheric metallicity for Neptune to Jupiter mass objects

July 2010 - October 2014

Education

California Institute of Technology

Doctor of Philosophy - Planetary Science
June 2015

California Institute of Technology

Master of Science - Planetary Science
June 2013

Texas A&M University

Bachelor of Arts - Chemistry
May 2010

Recent Papers & Presentations

Committee on Space Research (COSPAR) Scientific Assembly

Sydney, Australia

Simultaneous Observations of the Jovian Auroras using Juno-UVS and HST-STIS during Perijoves 4-7
J. A. Kammer, G. R. Gladstone, T. K. Greathouse, D. Grodent, B. Bonfond, J.-C. Gẽrard, et al.

January 2021

Journal Article

The Astronomical Journal 159 26

New Horizons Observations of an Ultraviolet Stellar Occultation and Appulse by Pluto's Atmosphere
J. A. Kammer, G. R. Gladstone, L. A. Young, A. J. Steffl, J. W. Parker, T. K. Greathouse, et al.
Link to article

January 2020

Journal Article

The Astronomical Journal 158 168

Probing the Hill Sphere of (486958) 2014 MU69 II:
HST FGS Observations during the 2018 August 4 Stellar Occultation

J. A. Kammer, T. M. Becker, K. D. Retherford, S. A. Stern, C. B. Olkin, M. W. Buie, et al.
Link to article

September 2019

Magnetospheres of the Outer Planets (MOP) Meeting

Sendai, Japan

Juno-UVS 3-D Maps of High-Energy Radiation at Jupiter
J. A. Kammer, G. R. Gladstone, T. K. Greathouse, V. Hue, M. H. Versteeg, M. W. Davis, et al.

June 2019

Journal Article

Journal of Astronomical Telescopes, Instruments, and Systems 5 027001

Planning Operations in Jupiter's High-Radiation Environment: Optimization Strategies from Juno-UVS
J. A. Kammer, V. Hue, T. K. Greathouse, G. R. Gladstone, M. W. Davis, and M. H. Versteeg.
Link to article

May 2019

American Geophysical Union (AGU) Fall Meeting

Washington, D.C.

Rider on the Storm: Juno-UVS Radiation Measurements of an Auroral Dawn Storm at Jupiter
J. A. Kammer, G. R. Gladstone, T. K. Greathouse, V. Hue, M. H. Versteeg, M. W. Davis, et al.

December 2018

Division for Planetary Sciences (DPS) Meeting

Knoxville, TN

A Ringside View of the Io Plasma Torus: Perijove Observations by Juno-UVS
J. A. Kammer, G. R. Gladstone, T. K. Greathouse, V. Hue, M. H. Versteeg, S. J. Bolton, et al.

October 2018

Journal Article

The Astronomical Journal 156 72

Probing the Hill Sphere of (486958) 2014 MU69:
HST FGS Observations during the 2017 July 17 Stellar Occultation

J. A. Kammer, T. M. Becker, K. D. Retherford, S. A. Stern, C. B. Olkin, M. W. Buie, et al.
Link to article

August 2018

Magnetospheres of the Outer Planets (MOP) Meeting

Boulder, CO

Juno-UVS Measurements of High-Energy Radiation at Jupiter
J. A. Kammer, G. R. Gladstone, T. K. Greathouse, V. Hue, M. W. Davis, M. H. Versteeg, et al.

July 2018

SPIE Astronomical Telescopes and Instrumentation Meeting

Austin, TX

Planning Operations in Jupiter's High-Radiation Environment: Optimization Strategies from Juno-UVS
J. A. Kammer, V. Hue, T. K. Greathouse, G. R. Gladstone, M. W. Davis, and M. H. Versteeg

June 2018

Colleagues & Collaborators

Southwest Research Institute // Space Science Directorate
Department of Space Research // Planetary Science

Remote Sensing Observers Group

Tracy Becker
Rohini Giles
Cesare Grava
Thomas Greathouse
Vincent Hue
Joshua Kammer
Philippa Molyneux


Interests

Computers & Programming
Culture & Games
Social Media & Messaging