National Aeronautics and Space Administration

Meeting/Workshop Presentations

• 2012-13 High-School Intern Poster

• Blocking NGSLR Radar RFI Emissions to Improve VLBI Function (K. Pham) [807 KB]
  (photos of site, blocker fabrication and deployment)

• EGU General Assembly, Vienna, Austria, April 08-12, 2013

• NASA's Space Geodesy Project, Abstract EGU2013-5676 (Stephen Merkowitz, Shailen Desai, Richard Gross, Lawrence Hilliard, Frank Lemoine, James Long, Chopo Ma, Jan McGarry, Davic Murphy, Carey Noll, Erricos Pavlis, Michael Pearlman, David Stowers, Frank Webb) [12.4 MB]
• Evolution of the Global Space Geodesy Network, Abstract EGU2013-3554 (Michael Pearlman, Chopo Ma, Erricos Pavlis, Carey Noll, Scott Wetzel, James Park, Ruth Neilan, Alexander Ipatov) [14.4 MB]

• American Geophysical Union (AGU) Fall Meeting, San Francisco CA, December 03-07, 2012

• Improvements to the Crustal Dynamics Data Information System, Abstract IN43B-1515 (C. Noll, M. Dube, P. Michael, N. Pollack, L. Tyahla) [5.0 MB]
• Next Generation NASA Initiative for Space Geodesy, Abstract G52B-04 (S. Merkowitz, S. Desai, R. Gross, L. Hilliard, F. Lemoine, J. Long, C. Ma, J. McGarry, D. Murphy, C. Noll, E. Pavlis, M. Pearlman, D. Stowers, F. Webb) [2.0 MB]
• KALREF – A Kalman Filter Approach to the International Terrestrial Reference Frame Realization, Abtsract G53B-1143 (X. Frank Wu, Claudio Abbondanza, Zuheir Altamimi, T. Mike Chin, Xavier Collilieux, Richard Gross, Michael Heflin, Ken Hurst, Yan Jiang, Jay Parker) [830 KB]
• A Three Corner Hat-based Analysis of Station Position Time Series for the Assessment of Inter-Technique Precision at ITRF Co-located Sites, Abstract G53B-1142 (C Abbondanza, TM Chin, RS Gross, MB Heflin, KJ Hurst, JW Parker, X Wu, Z Altamimi)[2.3 MB]

• Committee on Seismology and Geodynamics Meeting, November 19, 2012

• The Space Geodesy Project, Responding to the Recommendations of the Committee on the National Requirements for Precision Geodetic Infrastructure (S. Merkowitz)[2.2 MB]

• ILRS Technical Laser Workshop "Satellite, Lunar and Planetary Laser Ranging: Characterizing the Space Segment", INFN-LNF, Frascati, Italy, November 05-09, 2012

• Ground Based Space Geodesy Networks Required to Improve the ITRF (Michael Pearlman, Erricos Pavlis, Chopo Ma, Zuheir Altamimi, Carey Noll, David Stowers) [4.2 MB]
• NGSLR Experience with GNSS Ranging (Jan McGarry) [335 KB]
• Laser Ranging to the Lunar Reconnaissance Orbiter (LRO-LR) (Dave Smith, Maria Zuber, Jan McGarry) [420 KB]
• NGSLR's measurement of the retro-reflector array response of various LEO to GNSS satellites (Jan McGarry, Christopher Clarke, John Degnan, Howard Donovan, Benjamin Han, Julie Horvath, Thomas Zagwodzki) [2.8 MB]
• A Tutorial on Retroreflectors and Arrays for SLR (John J. Degnan) [1.5 MB]

• WPLTN-2012 Technical Workshop, St. Petersburg Russia, September 24-28, 2012

• The Space Geodesy Project (Stephen Merkowitz) [2.5 MB]

• Solar System Exploration Seminar for the Director of Science and Exploration, August 22, 2012

• The Space Geodesy Project (Stephen Merkowitz) [5.6 MB]
• NGSLR: NASA's Next Generation Satellite Laser Ranging System (Jan McGarry) [5.6 MB]
• The Development of the VLBI2010 Global Observing System (VGOS) (Chopo Ma, Dirk Behrend) [10.2 MB]

• International Symposium on Space Geodesy and Earth System, Shanghai, China, August 18–20, 2012

• Ground Based Space Geodesy Networks Required to Improve the ITRF (Michael Pearlman, Erricos Pavlis, Chopo Ma, Zuheir Altamimi, Carey Noll, David Stowers) [5.0 MB]

• Asia Oceana Geosciences Society, Singapore, August 13-17, 2012

• NASA's Next Generation Space Geodesy Program (Michael Pearlman, Shailen Desai, Richard Gross, Frank Lemoine, Larry Hillard, Jim Long, Chopo Ma, Jan McGarry, Stephen Merkowitz, David Murphy, Carey Noll, Erricos Pavlis, Dave Stowers, Frank Webb) [1.5 MB]

• IGS 2012 Workshop, Olsztyn Poland, July 23-27, 2012

• An Update on the CDDIS (Carey Noll, Patrick Michael, Maurice Dube, Nathan Pollack)[12.2 MB]
• NASA's Next Generation Space Geodesy Network (Shailen Desai, Richard Gross, Larry Hilliard, Frank Lemoine, Jim Long, Chopo Ma, Jan McGarry, Stephen Merkowitz, David Murphy, Carey Noll, Erricos Pavlis, Michael Pearlman, Dave Stowers, Frank Webb)[73 MB]

• GSFC Summer 2012 Intern Posters and Presentations

• Jason 2 Non-Conservative Force Modeling (Brian Fenton) [900 KB]
• Predicting Received Power in Satellite Laser Ranging (Benjamin Han)[800 KB]
• Reducing the RFI Problems at GGAO (Jeremy Hill) [800 KB]
• Time-Series Analysis of Geodetic Station Coordinates (Jordan Larson) [1.3 MB]
• The Coolest Presentation of the Summer of 2012 (Jordan Larson) [3 MB]
• Computer Aided Designs of Hyperspectral Microwave Atmospheric Sounder (HyMAS) Scanhead (Michael L. Sutton, Larry M. Hilliard, Paul E. Racette, Nicholas M. Shur, Akbar Eslami, Jamiiru Luttamaguzi, Ehsan Sheybani, Giti Javidi, Djavad Djavadi) [980 KB]
• Analysis of NGSLR Mount Model Changes with Time and Temperature (Zach Tejral) [500 KB]
• Hyperspectral Microwave Atmospheric Sounder Emulator (Janelle Williams, Lawrence Hilliard, Jaclyn Beck, Jeffrey Hosler, Gary Crum, Ehsan Sheybani, Giti Javidi, Akbar Eslami, Jamiiru Luttamaguzi, Djavad Djavadi) [520 KB]
• Generation of a Weather Database on Crustal Dynamics Data Information System (CDDIS) (Justine Woo) [3.4 MB]

• GSFC Summer 2012 Intern Colloquia

• Space Geodesy Project Overview (Stephen Merkowitz), June 06[25.8 MB]
• An Overview of Satellite Laser Ranging (SLR) (Jan McGarry), June 06[15.5 MB]
• VLBI Overview (Larry Hilliard), June 06[3.8 MB]
• GNSS and VTS Overview (Jim Long), June 07
• DORIS System Overview (Frank Lemoine), June 07[17.4 MB]
• The Geodetic Networks and Space Geodesy Applications (Frank Lemoine), June 07[2.5 MB]
• Space Geodesy and Measurements of Global Change (Michael Pearlman), June 13[39.2 MB]
• Space-based Lidar Systems and Instruments Developed at GSFC (Xiaoli Sun), June 20[126 MB]
• TBD (Michael Connally), June 27
• Applications of High Precision Laser Ranging to Artificial Satellites, the Moon, and the Planets (John Degnan), July 11
• The CDDIS and the International Space Geodetic Services (Carey Noll), July 12[5.9 MB]
• Radio Frequency Interference on the SGP and Worldwide, July 18
  • - Spectrum Management at GSFC, Scott Galbraith[8.8 MB]
  • - RFI experienced in Space-borne Radiometers, Larry Hilliard[3.3 MB]
  • - RFI on Space Geodesy Project Introduction, Larry Hilliard[1.3 MB]
  • - Solving the RFI Problems at GGAO, Jeremy Hill[5.4 MB]
  • - RFI on VLBI 2010 and legacy systems, Tom Clark

• EGU General Assembly, Vienna, Austria, April 23-27, 2012

• "NASA's Next Generation Space Geodesy Program", M. R. Pearlman, H. V. Frey, R. S. Gross, F. G. Lemoine, J. L. Long, C. Ma, J. F. McGarry, S. M. Merkowitz, C. E. Noll, E. C. Pavlis, D. A. Stowers, F. H. Webb, and T. W. Zagwodski, Abstract EGU2012-6608 presented at 2012 EGU General Assembly, Vienna Austria, April 23-27, 2012.[7.7 MB]
• GGOS Network Simulation Studies (Erricos Pavlis)[1.8 MB]

• 7th IVS General Meeting, "Launching the Next-Generation IVS Network", Madrid, Spain, March 04-09, 2012

• First broadband results with a VLBI2010 system (Arthur Niell)[1.4 MB]

• IVS VLBI2010 Workshop on Technical Specifications, Bad Kötzting/Wettzell, Germany, March 01-02, 2012

• Overview of the NASA/Haystack VLBI2010 receiver frontends (Christopher Beaudoin)[1.4 MB]

To/From International Partners

• CNES, April 06, 2012

• NASA Space Geodesy Project (SGP) Overview (F. Lemoine)[9.5 MB]
• First Broadband Results with a VLBI2010 System (A. Niell)[3.0 MB]
• NGSLR: NASA's Next Generation Satellite Laser Ranging System (J. McGarry)[5.3 MB]
• DORIS Radio Frequency Interference (RFI) Study (L. Hilliard)[4.6 MB]
• Ground Based Space Geodesy Networks Required to Improve the ITRF (M. Pearlman)[5.0 MB]
• GGOS Networks Call for Participation Responses (M. Pearlman)[100 KB]

• Finnish Geodetic Institute (FGI), February 13, 2012

• Finnish Geodetic Institute (M. Poutanen)[6.8 MB]
• NGSLR: NASA’s Next Generation Satellite Laser Ranging System (J. McGarry)[9.5 MB]

• Norwegian Mapping Authority (NMA), February 01-02, 2012

• Modernization of the Ny Alesund Geodetic Observatory (L. Langkass)[4.5 MB]
• Video of Ny Alesund [8.4 MB]

• Korea (KASI), December 07, 2011

• Report on Sejong Station (J. Park)[12 MB]

• Brazil (INPE), November 11, 2011

• Agenda[60 KB]
• The NASA Space Geodesy Project (S. Merkowitz)[10.1 MB]
• Overview and Discussion of Site Requirements (M. Pearlman)[6.2MB]
• The Geodetic Networks & Space Geodesy Applications (F. Lemoine)[2 MB]
• SLR Science Applications and Analysis Products (E. Pavlis)[20.1 MB]
• INPE Review of GGOS Site Requirements Document (E. Bergamini)[400 KB]

• REGINA (CNES and IGN), October 14, 2011

• CNES Organization[4 MB]
• REGINA Network[9.5 MB]
• REGINA Technical Requirements[3.2 MB]
• IGN Overview[4.1 MB]
• The NASA Space Geodesy Project (S. Merkowitz)[10.2 MB]
• Goddard Geophysical and Astronomical Observatory[5.9 MB]

• Colombia (IGAC), September 26, 2011

• Agenda[40 KB]
• A Review of Geodetic Activities in Colombia (W. Martinez Diaz)[8.2 MB]
• Space Geodesy Overview (S. Merkowitz)[10.2 MB]
• Global Geodetic Observing System (GGOS) and Core Sites (M. Pearlman)[25.4 MB]
• The Geodetic Networks & Space Geodesy Applications (F. Lemoine)[2 MB]
• SLR Science Applications and Analysis Products (E. Pavlis)[20.5 MB]
• CDDIS Overview (C. Noll)[130 KB]