1. Héctor M. Sanabria Valentín President Marel Bayamón, Inc. hmsvcm@prtc.net (787) 785-2240 Civil GPS Service Interface Committee States and Local Government Subcommittee Regional Meeting Puerto Rico May 23-24, 2006

2. Marel Bayamon, Inc. CORS The presentation will consist of 6 basic topics Different installations Installed by different federal agencies, states and local governments Different manufacturers CORS Coverage Process to establish Marel Bayamon, Inc CORS Existing CORS in Puerto Rico

3. Continuously Operating Reference Stations CONTINUOUSLY OPERATING REFERENCE STATIONS (CORS)

4. Installed and Operated by diverse Federal-State-local Agencies Network of more than 900 stations NOAA/National Geodetic Survey NOAA/Global Systems Division U.S. Coast Guard - DGPS/NDGPS Corps of Engineers - DGPS FAA - WAAS/LAAS State DOTs County and City Academia Private Companies CONTINUOUSLY OPERATING REFERENCE STATIONS (CORS)

5. Variety of “Geodetic Quality” Dual- Frequency Antennas and Receivers Allen-Osborne Ashtech/Thales Leica Topcon Trimble CONTINUOUSLY OPERATING REFERENCE STATIONS (CORS)

7. Marel Bayamon CORS Processed with OPUS And IGS Rapid Orbits LATITUDD.SEGLONGITUDD.SEGE.HEIGHTCMS 18-23-19.0.0792366-09-39.0.46749-160.843 0.079440.467860.889 0.079450.466780.836 0.079630.468240.868 0.079630.468000.859 0.079510.467720.879 0.079510.467990.847 0.079470.468090.901 0.079500.467890.860 0.079570.467990.847 0.079440.467820.873 0.079350.467390.842 0.079710.467750.859 0.079530.467920.868 Mean0.079500.467800.86200 Standard Dev.0.000120.000360.019 Mean Position18-23-19.07950N66-09-39.46780W-16.862

8. Marel Bayamon CORS validation data using RTK with Mobile Phone

9. RTK Using Cellular Phone Sanabria

10. RTK Using Cellular Phone Diaz

11. RTK Using Cellular Phone GUN

12. RTK Using Cellular Phone Berrios

13. RTK Using Cellular Phone Comerio

14. RTK Using Cellular Phone CANO RESET

15. Marel Bayamon CORS Position Processing with OPUS and Precise Orbits FILE NAMELATITUDELONGITUDHAENORTEESTE MAR1281C18-23-19.079430.0794366-09-39.467870.46787-16.888261482.922228781.417 MAR1282C18-23-19.079390.0793966-09-39.467420.46742-16.852261482.921228781.430 MAR1283C18-23-19.079420.0794266-09-39.467750.46775-16.839261482.922228781.420 MAR1283I18-23-19-079350.0793566-09-39.468070.46807-16.878261482.920228781.411 MAR1286C18-23-19.079500.0795066-09-39.467840.46874-16.850261482.924228781.417 MAR1287R18-23-19.079430.0794366--09-39.467890.46789-16.910261482.922228781.416 MAR1288I18-23-19.079280.0792866-09-39.467760.46776-16.871261482.917228781.420 MAR1289O18-23-19.079430.0794366-09-39.467760.46776-16.846261482.922228781.420 MAR1190I18-23-19.079540.0795466-09-39.467960.46796-16.857261482.925228781.414 MAR1291C18-23-19.079730.0797366-09-39.467640.46764-16.877261482.931228781.423 MEAN18-23-19.079450.0794566-09-39.467890.46789-16.867261482.923228781.419 STDEV0.000120.000350.0220.0040.005

16. Difference Between IGS Rapids and IGS Precise IGS Rapid 261482.924 N 228781.416 W -16.862 Hae IGS Precise 261482.923 N 228781.419 W -16.867 Hae Difference -.001 N +.003 W -.005 Hae

17. MAREL BAYAMON INC (PRMA), PUERTO RICO _____________________________________________________________________________ | | Antenna Reference Point(ARP): MAREL BAYAMON INC CORS ARP | | -------------------------------------------------------- | | PID = DH3840 | | | ITRF00 POSITION (EPOCH 1997.0) | | Computed in June 2005 using 31 days of data. | | X = 2447022.439 m latitude = 18 23 19.08890 N | | Y = -5537920.444 m longitude = 066 09 39.46539 W | | Z = 1999243.072 m ellipsoid height = -18.767 m | | | ITRF00 VELOCITY | | Set equal to velocity for pur3, computed in Apr. 2004. | | VX = 0.0058 m/yr northward = 0.0124 m/yr | | VY = 0.0073 m/yr eastward = 0.0083 m/yr | | VZ = 0.0116 m/yr upward = -0.0005 m/yr | | | NAD_83 (CORS96) POSITION (EPOCH 2002.0) | | Transformed from ITRF00 (epoch 1997.0) position in June 2005. | | X = 2447023.107 m latitude = 18 23 19.07930 N | | Y = -5537922.191 m longitude = 066 09 39.46862 W | | Z = 1999243.382 m ellipsoid height = -16.897 m | | | NAD_83 (CORS96) VELOCITY | | Transformed from ITRF00 velocity in June 2005. | | VX = 0.0148 m/yr northward = 0.0050 m/yr | | VY = 0.0089 m/yr eastward = 0.0171 m/yr | | VZ = 0.0045 m/yr upward = -0.0006 m/yr | |_____________________________________________________________________________|

18. MAREL BAYAMON INC (PRMA), PUERTO RICO

20. HARDWARE CONFIGURATION

21. Existing CORS in US Territories

22. Existing and Proposed CORS in Puerto Rico. PR4N

23. Questions ?