Conference program

a. Introduction (M. Pearlman – 10 min) b. What is the role of GGOS? What is the ILRS role in GGOS? What are the important GGOS products and product requirements and how does the ILRS contribute to these areas (GGOS Focus Areas); (M. Rothacher or M. Pearlman - 20 min) c. Results of the ILRS User Survey. Why are these missions important? What are their data products What do they achieve? What are the missions tracking requirements in terms of data volume, range accuracies, data acquisition requirements, normal point frequency, geographic distribution, tracking intervals, etc.)? Which of these missions can benefit from occasional or infrequent tracking, campaigns, etc? Which missions might benefit from sub-network tracking? (M. Pearlman – 15 min) Break (10:15 – 10:30) (note we have only 15 minutes for this break)

a. Requirements for the ITRF (E. Pavlis – 13/2 min.)

b. Requirements for Altimeter Missions (F. Lemoine – 13/2 minutes)  c. Requirements for GNSS (Galileo, GLONASS, Beidou, etc.), (K. Sosnica – 13/2 min.) d. Requirements for GLONASS (M. Sadovnikov/V. Shargorodskiy – 13/2 min) e. Requirements for CubeSat (M. Rothacher – 13/2 min) f. Requirements for Supporting Other Applications (time varying gravity field,atmospheric drag) (T. Otsubo/M. Blossfeld – 13/2 min)

In our present mode of operation are we over committed?

a. Review of ILRS Network Performance (M. Pearlman – 15 min) We currently have the 600/3500 (LAGEOS and LARES/all Satellites) pass criteria (target) for an “operational” station; What performance do the stations currently demonstrate? How much data are stations acquiring? Which missions are stations supporting and which are they not? What data quality do stations achieve? Are the new technology stations doing better than the legacy stations? b. Rating Station Performance (E. Hoffman – 15 min) We currently rate station performance primarily by data volume. Alternative approaches that might increase the value to our users and offer better incentives to the stations; Are there other ideas on how we should rate stations performance? How do we give more incentive to the stations? Should we classify stations based on their performance (say “operational“ versus“associate”)? c. Setting ILRS Tracking Priorities (ILRS CB – 15 min) How do we presently set tracking priorities? How does your station set its priorities? Do you try to cover the whole list of satellites or do you focus on a shorter list? What other requirements is your station(s) trying to satisfy? Discussion:

Come prepared to tell us what your station is doing or planning to do to improve performance.

a. Issues with Satellite Predictions (J. Steinborn/G. Appleby) (13/2 min) Are poor predictions causing a serious loss in network efficiency? Should we have a quality-criteria to rate our predictions? Would it do any good? Can we QC predictions before they are made public? b. Impact of Supporting Other Applications (G. Kirchner/G. Appleby?) (13/2 min)  How much active time do SLR systems spend on other applications like time transfer, debris tracking, etc.? Are stations able to get funding for these activities, either capital costs or support for operations? Are you building or contemplating building a dedicated station for other activities? c. Long Term View (M. Pearlman) (10min) What do our station network projections tell us about the future capability of the SLR network? Where are our strengths and weaknesses? Is it an issue of data accuracy or data volume? d. Poster Briefs (2 min each) (20 min) 16:00-18:00 Data Formats and Procedures SC meeting (Room 240)