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The ILRS 2009 Fall Workshop was held in Metsovo Greece on September 14-19, 2009. The workshop was organized by the ILRS and the National Technical University of Athens, Greece (NTUA).

Workshop Logo The 2009 ILRS Technical Workshop (first/second/third circular) addressed a very timely issue: the tracking of current and future GNSS constellations with SLR. The idea behind this workshop was to bring together experts from the SLR and GNSS communities providing them with a forum to discuss all aspects of the theme, focusing primarily on the science benefits, while tackling also problems arising from the large number of GNSS clients and the finite resources available to ILRS. In the opening lecture of the workshop, Professor Emeritus of the National Technical University of Athens, George Veis, the person to whom the workshop was dedicated on the occasion of his 80th birthday and who is by most considered the father of satellite geodesy, offered an excellent historical review of space geodesy, from its inception to present, including all modern space techniques with many examples and some rare photographic records.

This website provides access to the presentations and session summaries from the workshop. Furthermore, an executive summary and a full meeting report, (which includees the session summaries) are available. The presentations are organized by session:

Registration and Opening
  Opening remarks, Prof. (Emeritus) D. Balodimos, National Technical University of Athens
Opening lecture, Prof. (Emeritus) G. Veis, National Technical University of Athens
The Impact of SLR Tracking on GNSS Constellations Position Papers (E. Pavlis)

GPS, T. Springer

GLONASS (current/future), V. Vasiliev, V. Glotov

Galileo, T. Springer


QZSS, M. Sawabe, S. Nakamura

Status of SLR and the ILRS, M. Pearlman

Zip File Zip file of all presentations in The Impact of SLR Tracking on GNSS Constellations session
Science from SLR and GNSS - A (D. Paradissis)

Processing large volume GPS data via Bernese V4.2 software, C. Mitsakaki, A. Marinou, X. Papanikolaou, K. Papazissi

InSAR mapping of surface deformation on Lefkada island during 1992-2006 and its relation to seismic activity, A. Ganas, V. Koraka

Crustal Deformation from GPS measurements at the Ionian Sea: Preliminary Results, D. Anastasiou, D. Paradissis, A. Ganas, A. Marinou, K. Papazissi, G. Drakatos, K. Makropoulos
Science from SLR and GNSS - B (A. Ganas)
  Accurate Geoid Undulation Determination along a 120 km Long Railway Traverse in Central Greece: Preliminary Results and Validation, V. Gikas, A. Androulaki, A. Bimis, V. Zacharis, K. Fragos
The Eastern Mediterranean Altimeter Calibration Network – eMACnet, E. C. Pavlis, K. Evans, P. Milas, B. A. Massinas, D. Paradissis
The ASI/CGS contribution to the ITRF maintenance: the ILRSA solution, C. Sciarretta, V. Luceri, G. Bianco
Contribution of Future SLR Networks to the Development of ITRF, E. C. Pavlis, M. Kuzmicz-Cieslak, P. Hinkey
The GPS-SLR bias: dynamics, attitude and current experiments, M. Ziebart, T. Springer
Science from SLR and GNSS - C (K. Katsampalos)
  Apparent Geocenter Oscillations in GNSS Solutions Caused by the Ionospheric Effect of Second Order, K. Palamartchuk
Adaptive Likehood Estimator for Forecasting Ionospheric Component on Synthetic Aperture Radar Interferometry (InSAR) Technique, B. A. Massinas, N. Doulamis, D. Paradissis
A Tapped Delay Line Neural Network for Modeling Ionospheric Disturbances Behavior, A. Doulamis, B. A. Massinas, D. Paradissis
Advanced Signal Processing Techiques for Inverse Synthetic Aperture Radar (ISAR) Imaging, A. Karakassiliotis, G. Boultadakis, G. Kalognomos, B. A. Massinas, P. Frangos
Summary of recent and current research on ISAR Signal Processing at the NTUA, Greece, P. Frangos
A relation between actual and normal Ricci curvature of the equipotential surfaces of the Earth’s gravity field along GOCE track, G. Manoussakis and D. Paradissis

Deformation of the southern Aegean from continuous Global Positioning System measurements Kirill Palamartchouk (poster), K. Palamartchouk, M. Floyd, P. England, B. Parsons, J.M. Nocquet, C. Raptakis, D. Paradissis, H. Billiris, J. Galanis

Science from SLR and GNSS - D (V. Gikas)
  Hellenic Terrestrial Reference System 2007 (HTRS07): A regional realization of ETRS89 over Greece in support of HEPOS, K. Katsampalos, C. Kotsakis, M. Gianniou
Discussion (Datums)
Zip File Zip file of all presentations in Science from SLR and GNSS sessions
Scientific impact of SLR tracking on GNSS Constellations (J. Ries)
  Scientific impact of SLR tracking on GNSS Constellations Position Paper, E. Pavlis
SLR Tracking of GNSS Constellations, E. Pavlis, M. Kuzmicz-Cieslak, P. Hinkey
What is the benefit of tracking GNSS satellites with SLR?, D. Thaller, R. Dach, G. Beutler, M. Mareyen, B. Richter
An assessment of the value of SLR observations to GNSS, R. Govind
Collection and processing in TSNIMASH of GLONASS spacecraft ranging data obtained by Russian and global SLR network stations, V. D. Glotov, N. N. Parkhomenko
SLR Observations of COMPASS – G2, Y. Fumin, Z. Zhongping, C. Juping, C. Wanzhen, Z. Haifeng, W. Zhibo, M. Wendong
ESOC SLR Activities, T. A. Springer, C. Flohrer, M. Otten, D. Svehla, J. Dow
Two approaches to build time series of EOP from SLR data, F. Deleflie, D. Coulot, B. de Saint Jean, J.-M. Lemoine, P. Exertier, O. Laurain
Laser Ranging to GNSS & LPOD2005, J. Ries
Zip File Zip file of all presentations in Scientific impact of SLR tracking on GNSS Constellations session
Operational Issues (M. Pearlman)
  Operational issues Position Paper, G. Appleby
Scheduling lessons learned from Lunar Laser Ranging, R Ricklefs
Operational 'Best Practices' for the NASA laser systems, H Donovan
Possible strategy for laser tracking the future GPS constellation, S Wetzel
Potential Scheduling Applications to the Tracking of the GNSS Constellations, C Clarke
GOCE orbit predictions for SLR tracking, A. Jäggi, H. Bock, W. Gurtner, R. Floberghagen
Towards 2kHz new SLR system in Metsähovi, K. Arsov, A. Raja-Halli, J. Näränen, M.Poutanen
Routine kHz tracking at Changchun and Shanghai, Z Zhongping, Y Fumin, et al
Navigation of the RadioAstron Mission, R. M. Bebenin, Y. N. Ponomarev, V. A. Stepanyants
Zip File Zip file of all presentations in Operational Issues session
Technology Challenges (G. Appleby)
  Technology Challenges, M. Pearlman
Uncoated Cubes for GNSS Satellites, D. Arnold
Proposed Single Open Reflector for the GALILEO Mission, R. Neubert, J.Neubert, J. Munder, L. Grunwaldt
Target signature effects on laser ranging accuracy for the GIOVE satellites, T. Otsubo, P. Gibbs, G. M. Appleby
Relative signal strengths from SLR tracking of the different retroreflector targets onboard HEO satellites using the fullrate data set, M. Wilkinson, G. Appleby
Creation of the new industry-standard space test of laser Retroreflectors for GNSS constellations, S. Dell’Agnello, G. O. Delle Monache, D. G. Currie, R. Vittori, C. Cantone, M. Garattini, A. Boni, M. Martini, C. Lops, N. Intaglietta, R. Tauraso, D. A. Arnold, G. Bianco, M. R. Pearlman, S. Zerbini, M. Maiello, S. Berardi, L. Porcelli
Some conditions necessary to achieve submillimiter accuracy in SLR, M. A. Sadovnikov
HEO and Moon tracking at Grasse (MeO), JM Torre, M Aimar, D Féraudy, M Furia, H Mariey
First T2L2 results and time transfers, P. Exertier, E Samain
Zip File Zip file of all presentations in Technology Challenges session

Session Summaries

  Executive Summary
Impact of SLR on GNSS Constellations on GNSS Summary
Impage of SLR on GNSS Constellations on Science Summary
Operational Challenges of SLR Tracking of GNSS Constellations Summary
Technological Challenges Summary
Full Workshop Report (including session summaries)
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Author: Carey Noll
Responsible NASA Official: Carey Noll
January 28, 2010