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All files for the proceedings are stored in Adobe PDF format. The proceedings from this workshop will not be published in hardcopy form. To cite a paper from the workshop, please use the following format:

<<Author name(s)>>, <<Paper Title>>, <<Abstract Number>>, presented at the 23rd International Workshop on Laser Ranging, Held Virtually, October 16-20, 2023.

Monday, October 16: 12:00-12:15 UTC 08:00-08:15 EDT 2023 IWLR Opening Remarks Pearlman, Merkowitz, Carabajal, Others ILRS CB/ILRS GB, Organizing Committee
Session 1: Scientific Analysis of SLR Observations: Past, Current and Future Challenges and Possibilities Chairs: Mathis Bloßfeld, David Sarrocco, Frank Lemoine
12:15-12:30 UTC	08:15-08:30 EDT	S01-01				The Influence of Geodetic Satellite Orbital Parameters on the Quality of Global Geodetic Parameters	Joanna Najder (1), Krzysztof Sosnica (1), Radoslaw Zajdel (1)	(1) Institute of Geodesy and Geoinformatics, Wroclaw University of Environmental and Life Sciences, Poland	Contributed
12:30-12:45 UTC	08:30-08:45 EDT	S01-02				Histogram calculations for Laser Ranging	David Arnold (1)	(1) Smithsonian Astrophysical Observatory (retired), USA	Contributed
12:45-13:00 UTC	08:45-09:00 EDT	S01-03				LARES-2 Centre of Mass Corrections	José Rodriguez (1), Graham Appleby (2), Reinhart Neubert(3), Toshimichi Otsubo (4), Andreja Susnik (2)	(1) IGN-Yebes, Yebes, Spain, (2) NERC Space Geodesy Facility, Herstmonceux, UK, (3) Geoforschungszentrum Potsdam (retired), Potsdam, Germany, (4) Hitotsubashi University, Tokyo, Japan	Contributed
13:00-13:15 UTC	09:00-09:15 EDT	S01-04				Application of ITRS 2020 Realizations for SLR POD	Mathis Bloßfeld (1), Manuela Seitz (1), Julian Zeitlhöfler (1), Sergei Rudenko (1), Matthias Glomsda (1), Alexander Kehm (1)	(1) DGFI-TUM, Munich, Germany	Contributed
13:15-13:30 UTC	09:15-09:30 EDT	S01-05				Improving Low-Degree Gravity Estimates with Future SLR Satellites	Evan Tucker (1) Steve Nerem (1), Bryant Loomis (2)	(1) University of Colorado, USA, (2) NASA GSFC, USA	Invited
13:30-13:45 UTC	09:30-09:45 EDT	S01-06				Implementation and Validation of a Novel Representation of the Gravitational Effect of Ocean Tides.	Alexander Kehm (1), Mathis Bloßfeld (1), Michael Hart-Davis (1), Henryk Dobslaw (2), Torsten Mayer-Guerr (3)	(1) DGFI-TUM, Munich, Germany, (2) Geoforschungszentrum Potsdam, Potsdam, Germany, (3) Graz University of Technology, Graz, Austria.	Contributed
13:45-14:00 UTC	09:45-10:00 EDT	S01-07				The G4S_2.0 Project: State of the Art and SLR Campaign	Feliciana Sapio (1,2), David Lucchesi (2), Massimo Visco (2), Alessandro Di Marco (2), Marco Cinelli (2), Emiliano Fiorenza (2), Carlo Lefevre (2), Pasqualino Loffredo (2), Marco Lucente (2), Carmelo Magnafico (2), Roberto Peron (2), Francesco Santoli (2), Francesco Vespe (2)	(1) National Institute for Astrophysics (IAPS/INAF) Roma, Italy, (2) G4S 2.0 collaboration	Contributed
14:00-14:15 UTC	10:00-10:15 EDT	S01-08				Improvements in the SLR Processing of the Copernicus Sentinel-3/6 Missions	Carlos Fernández (1), Marc Fernández (1), Heike Peter (2), Pierre Féménias (3), Carolina Nogueira Loddo (4)	(1) GMV AD., Isaac Newton 11, 28760 Tres Cantos, Spain, (2) PosiTim UG, In den Löser 15, 64342 Seeheim-Jugenheim, Germany, (3) ESA/ESRIN, Largo Galileo Galilei 1, I-00044 Frascati, Italy, (4) EUMETSAT, Eumetsat Allee 1, 64295 Darmstadt, Germany.	Contributed
14:15-14:30 UTC	10:15-10:30 EDT					Discussion
Tuesday, October 17: Session 2: New Technologies and Operations Chairs: Matt Wilkinson, Jeff Dorman
12:30-12:45 UTC	08:30-08:45 EDT	S02-01				Eventech Update on Timing and Time-Tagging Technologies	Pavels Razmajevs (1)	(1) Eventech, Latvia	Contributed
12:45-13:00 UTC	08:45-09:00 EDT	S02-02				First results with Eventech Stream Time Tagger in Full Record Mode	Kalvis Salmins (1), V. Bespalko(2), V. Stepanovs(2), R. Suna(3)	(1) Institute of Astronomy University of Latvia, Latvia, (2) Eventech, (3) Luleå University of Technology, Sweden	Contributed
13:00-13:15 UTC	09:00-09:15 EDT	S02-03				Hybrid Photodetector as Sensor for SLR: First Results	Kalvis Salmins (1), J. del Pino (1), J. Kaulins (1)	(1) Institute of Astronomy University of Latvia, Latvia	Contributed
13:15-13:30 UTC	09:15-09:30 EDT	S02-04				Acoustic Positioning System of Closely-Flying Aircraft for SLR Eye Safety	Toshimichi Otsubo (1), Mihoko Kobayashi (1), Yusuke Yokota (2), Kenji Kouno (3), Hiroshi Araki (4)	(1) Hitotsubashi University, Kunitachi, Japan, (2) The University of Tokyo, Tokyo, Japan, (3) Institute of Industrial Science, University of Tokyo, Tokyo, Japan, (4) NAOJ, Mitaka, Japan	Contributed
13:30-13:45 UTC	09:30-09:45 EDT	S02-05				Detection of Aircraft in Nighttime All-Sky Images Using Deep Learning	Carlos Hernandez-Fernandez (1), José Rodríguez (2)	(1) Universidad de Alcala de Henares - IGN-Yebes, Spain, (2) IGN-Yebes, Spain	Contributed
13:45-14:00 UTC	09:45-10:00 EDT	S02-06				Low cost Real-time Cloud Mapping For Evaluation of Laser Acquisition Conditions Developed in Grasse O.G.S.	Hervé Viot (1)	(1) Observatoire De La Côte d'Azur, France	Contributed
14:00-14:15 UTC	10:00-10:15 EDT	S02-07				SkyVision: a Whole Sky Monitoring Software for SLR Graz	Peiyuan Wang (1)	(1) Space Research Institute, Austrian Academy of Sciences, Austria	Contributed
14:15-14:25 UTC	10:15-10:25 EDT					Break (10 minutes)
14:25-14:40 UTC	10:25-10:40 EDT	S02-08				Sub-cm Ranging with MiniSLR®	Felicitas Niebler (1)	(1) Deutsches Zentrum für Luft- und Raumfahrt	Contributed
14:40-14:55 UTC	10:40-10:55 EDT	S02-09				Tsukuba SLR Station, Current Status 2023	Ayano Nakajima (1)	(1) Japan Aerospace Exploration Agency	Contributed
14:55-15:10 UTC	10:55-11:10 EDT	S02-10				Installation and First Results of the Yebes Laser Ranging Station (YLARA)	Beatriz Vaquero (1), José Rodríguez (1), José Antonio López-Pérez (1), Adolfo García (1), Jens Steinborn (2), Andre Kloth (2), Steffen Zeidler (2), Sven Bauer (2), Erik Günther (2), Reik Mattner (2)	(1) Yebes Observatory (IGN/CNIG), Yebes, Spain, (2) DiGOS Potsdam GmbH, Potsdam, Germany	Contributed
15:10-15:25 UTC	11:10-11:25 EDT	S02-11				NASA SLR System Characterization: A Case Study using Ground Tests	Van Husson (1), Christopher Szwec (1), Peter Dunn (1)	(1) Peraton, USA	Contributed
15:25-15:40 UTC	11:25-11:40 EDT					Discussion
Wednesday, October 18: Session 3: Lunar Laser Ranging and Transponders Session Chairs: Nicholas Colmenares, Clément Courde, Stephen Merkowitz
13:40-14:00 UTC	09:40-10:00 EDT	S03-01				Laser Time Transfer in Mission of lunar orbit of CAS	Wendong Meng (1)	(1) Shanghai Astronomical Observatory, CAS, Shanghai 200030, PR of China	Contributed
14:00-14:20 UTC	10:00-10:20 EDT	S03-02				LLR System Design with Separate Transmit and Receive Telescopes	Zhi-Peng Liang (1,2), Jian Gao (1), Xing-Wei HAN (1,3), Cheng-Zhi Liu (1,3)	(1) Changchun Observatory of National Astronomical Observatories, Chinese Academy of Sciences, Changchun, PR China, (2) University of Chinese Academy of Sciences, Beijing, PR China, (3) Key Laboratory of Space Object and Debris Observation, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing, PR China	Contributed
14:20-14:40 UTC	10:20-10:40 EDT	S03-03				Using LLR Data for Testing General Relativity with Focus on the Equivalence Principle	Jürgen Müller (1), Biskupek L. (1), Singh V. (1, 2), Zhang M. (1, 2)	(1) Germany Institute of Geodesy (IfE), Leibniz University Hannover, Hannover, Germany, (2) Institute for Satellite Geodesy and Inertial Sensing, German Aerospace Center (DLR), Hannover, Germany	Invited
14:40-15:00 UTC	10:40-11:00 EDT	S03-04				Relativistic Geodesy Utilizing Accurate Time Transfer and the ACES Mission	Ulli Schreiber (1)	(1) Technical University of Munich, Germany	Invited
15:00-15:20 UTC	11:00-11:20 EDT	S03-05				Next Generation Lunar Retroflector and the Role of SLR Stations	Doug Currie (1)	(1) University of Maryland, College Park, USA	Invited
15:20-15:40 UTC	11:20-11:40 EDT	S03-06				Multipurpose Interplanetary Laser Instrument	John Degnan (1)	(1) Independent Consultant. (formerly NASA/Hexagon USF), USA	Contributed
15:40-16:00 UTC	11:40-12:00 EDT	S03-07				Exploring the Impact of Lunar Dust on APOLLO Retroreflector Array LLR Return Rates	Sanchit Sabhlok (1), James B. R. Battat (2), Nicholas R. Colmenares (3, 4), Daniel P. Gonzales (5), Tom W. Murphy, Jr. (1)	(1) UC San Diego, CA, USA, (2) Wellesley College, MA, USA, (3) NASA GSFC, MD, USA, (4) Oak Ridge Associated Universities, TN, USA, (5) University of Maryland, Baltimore County, MD, USA	Invited
16:00-16:15 UTC	12:00-12:15 EDT					Discussion
Thursday, October 19: Session 4: Missions and Applications Session Chairs: Robert Sherwood, José Carlos Rodríguez
12:00-12:20 UTC	08:00-08:20 EDT	S04-01				GENESIS: Co-Location of Geodetic Techniques in Space	Pacôme Delva (1)	(1) SYRTE, Observatoire de Paris-PSL, Sorbonne Université, CNRS, LNE, France	Invited
12:20-12:35 UTC	08:20-08:35 EDT	S04-02				Benefits for Geodesy from SLR Tracking of Future GENESIS Mission	Tomasz Kur (1)	(1) Institute of Geodesy and Geoinformatics, Wrocław University of Environmental and Life Sciences, Wroclaw, Poland	Contributed
12:35-12:50 UTC	08:35-08:50 EDT	S04-03				Technical Demonstration of Mt.FUJI on HTV-X and Challenge of Attitude Estimation by SLR	Yuki Akiyama (1)	(1) Japan Aerospace Exploration Agency, Japan	Invited
12:50-13:05 UTC	08:50-09:05 EDT	S04-04				Applying SLR to a 1U CubeSAT with a Reflector Module mini-Mt.FUJI	Takanao Ishii (1)	(1) The e-kagaku Association of Global Science and Education, Japan	Invited
13:05-13:20 UTC	09:05-09:20 EDT	S04-05				ILRS Support for SWOT Mission	Alexandre Couhert (1), Shailen Desai (2), Sabine Houry (1)	(1) CNES, France, (2) JPL, USA	Invited
13:20-13:35 UTC	09:20-09:35 EDT	S04-06				Overview of SLR Missions at Shanghai Observatory and Laser Ranging	Zhien Cheng (1)	(1) Shanghai Astronomical Observatory of CAS, PRC	Invited
13:35-13:50 UTC	09:35-09:50 EDT	S04-07				Extending ILRS support to 24 BeiDou-3 Satellites - Tracking Performance and Outlook	Radoslaw Zajdel (1)	(1) Wroclaw University of Environmental and Life Sciences (UPWr), Poland	Contributed
13:50-14:05 UTC	09:50-10:05 EDT	S04-08				Active Debris Removal by Astroscale-Japan (ADRAS-J): Overview	Sharon Sara Saji (1)	(1) Astroscale, UK	Invited
14:05-14:20 UTC	10:05-10:20 EDT	S04-09				NanoFF Mission Operations	Debdeep Roychowdhury (1)	(1) Technische Universität Berlin, Germany	Invited
14:20-14:35 UTC	10:20-10:35 EDT					Discussion
Friday, October 20: Session 5: Space Debris Session Chairs: Michael Steindorfer, Emiliano Cordelli
12:00-12:15 UTC	08:00-08:15 EDT	S05-01				An Update on Space Safety Activities in ESA and on ESA's Zero Debris Approach	Tim Flohrer (1)	(1) European Space Agency, ESOC / Head of ESA Space debris office, Italy	Invited
12:15-12:30 UTC	08:15-08:30 EDT	S05-02				Automated Space Debris Observation and Detection With a Low Cost Astronomy Mount	Michael A. Steindorfer (1), Franz Koidl (1), Daniel Fauland (1), Nadine Trummer (1), Peiyuan Wang (1)	(1) Space Research Institute, Austrian Academy of Sciences, Austria	Invited
12:30-12:45 UTC	08:30-08:45 EDT	S05-03				The Role of SLR and SSA Observation Campaign Within the ELSA-d Mission	Sharon Sara Saji (1), Justin Gay-Semenkoff (1)	(1) Astroscale, UK	Invited
12:45-13:00 UTC	08:45-09:00 EDT	S05-04				AGO70 Telescope: Demonstration of Passive Optical System Supporting SLR Tracking of Space Debris on LEO	Jiri Silha (1) , Matej Zigo (1), Michael Steindorfer (2)	(1) Comenius University Bratislava, Slovakia, (2) Space Research Institute, Austrian Academy of Sciences, Austria	Invited
13:00-13:15 UTC	09:00-09:15 EDT	S05-05				The Progress of Space Debris Laser Ranging at Shanghai SLR Station	Haifeng Zhang (1), Zhang Zhongping (1)	(1) Shanghai Astronomical Observatory of CAS, PRC	Invited
13:15-13:30 UTC	09:15-09:30 EDT	S05-06				Study on Space Debris Laser Detection in Kunming Station	Xiaoyu Pi (1)	(1) Yunnan Observatories, Chinese Academy of Sciences, PRC	Invited
13:30-13:45 UTC	09:30-09:35 EDT	S05-07				Space Debris Laser Ranging Activities in Zimmerwald	Thomas Schildknecht (1), Julian Rodriguez (1), Pascal Sauer (2), Pierre Lauber (1), Lucia Kleint (1)	(1) AIUB, Astronomical University Bern, Switzerland, (2) TU Darmstadt, Germany	Invited
13:45-14:00 UTC	09:45-10:00 EDT	S05-08				The Johannes Kepler Observatory and Laser-Space Debris Related Activities	Gerd A. Wagner (1), Wolfgang Riede (1), Thomas Dekorsy (1)	(1) Deutsches Zentrum für Luft- und Raumfahrt (DLR, German Aerospace Center), Institute of Technical Physics, Stuttgart, Germany	Invited
14:00-14:15 UTC	10:00-10:15 EDT					Discussion
14:15-14:30 UTC 10:15-10:30 EDT 2023 IWLR Closing Remarks Pearlman, Merkowitz, Carabajal, Others from the Organizing Committee ILRS CB/ILRS GB, Organizing Committee