***ITRF 00*** OBEC CONS COOP (OBEC), OREGON Revised Coordinate October 3, 2006 _____________________________________________________________________________ | | | Antenna Reference Point(ARP): OBEC CONS COOP CORS ARP | | ----------------------------------------------------- | | PID = DE6242 | | | | | | ITRF00 POSITION (EPOCH 1997.0) | | Computed in Oct. 2006 using 113 days of data. | | X = -2506736.033 m latitude = 44 03 57.47566 N | | Y = -3845597.042 m longitude = 123 05 53.33219 W | | Z = 4413438.925 m ellipsoid height = 111.810 m | | | | ITRF00 VELOCITY | | Predicted with HTDP version 2.8 Oct. 2006 | | VX = -0.0134 m/yr northward = -0.0074 m/yr | | VY = 0.0021 m/yr eastward = -0.0124 m/yr | | VZ = -0.0049 m/yr upward = 0.0006 m/yr | | | | | | NAD_83 (CORS96) POSITION (EPOCH 2002.0) | | Transformed from ITRF00 (epoch 1997.0) position in Oct. 2006. | | X = -2506735.433 m latitude = 44 03 57.45763 N | | Y = -3845598.236 m longitude = 123 05 53.28029 W | | Z = 4413438.801 m ellipsoid height = 112.207 m | | | | NAD_83 (CORS96) VELOCITY | | Transformed from ITRF00 velocity in Oct. 2006. | | VX = 0.0049 m/yr northward = 0.0073 m/yr | | VY = 0.0029 m/yr eastward = 0.0025 m/yr | | VZ = 0.0052 m/yr upward = -0.0001 m/yr | |_____________________________________________________________________________| | | | L1 Phase Center of the current GPS antenna: OBEC CONS COOP CORS L1 PC C | | ----------------------------------------------------------------------- | | The Trimble Zephyr Geodetic with GP antenna | | (Antenna Code = TRM41249.00) was installed on 05/19/06. | | The L2 phase center is 0.003 m below the L1 phase center. | | PID = DH9603 | | | | | | ITRF00 POSITION (EPOCH 1997.0) | | Computed in Oct. 2006 using 113 days of data. | | X = -2506736.061 m latitude = 44 03 57.47567 N | | Y = -3845597.085 m longitude = 123 05 53.33217 W | | Z = 4413438.975 m ellipsoid height = 111.882 m | | | | The ITRF00 VELOCITY of the L1 PC is the same as that for the ARP. | | | | | | NAD_83 (CORS96) POSITION (EPOCH 2002.0) | | Transformed from ITRF00 (epoch 1997.0) position in Oct. 2006. | | X = -2506735.460 m latitude = 44 03 57.45764 N | | Y = -3845598.279 m longitude = 123 05 53.28027 W | | Z = 4413438.851 m ellipsoid height = 112.278 m | | | | The NAD_83 (CORS96) VELOCITY of the L1 PC is the same as that for the ARP. | |_____________________________________________________________________________| * Latitude, longitude and ellipsoid height are computed from their corresponding cartesian coordinates using dimensions for the GRS 80 ellipsoid: semi-major axis = 6,378,137.0 meters flattening = 1/298.257222101... * WARNING: Mixing of antenna types can lead to errors of up to 10 cm. in height unless antenna-phase-center variation is properly modeled. * The ITRF00 and NAD83 positions were revised in Oct. 2006. *************************************************************************** *************************************************************************** old coord ***ITRF 00*** OBEC CONS COOP (OBEC), OREGON Retrieved from NGS DataBase on 10/03/06 at 16:14:21. _____________________________________________________________________________ | | | Antenna Reference Point(ARP): OBEC CONS COOP CORS ARP | | ----------------------------------------------------- | | PID = DE6242 | | | | | | ITRF00 POSITION (EPOCH 1997.0) | | Computed by OPUS in Feb 2002 using 10 days of data. | | X = -2506736.064 m latitude = 44 03 57.47564 N | | Y = -3845597.058 m longitude = 123 05 53.33296 W | | Z = 4413438.953 m ellipsoid height = 111.851 m | | | | ITRF00 VELOCITY | | Predicted with on-line HTDP Mar, 2002. | | VX = -0.0134 m/yr northward = -0.0074 m/yr | | VY = 0.0021 m/yr eastward = -0.0124 m/yr | | VZ = -0.0049 m/yr upward = 0.0006 m/yr | | | | | | NAD_83 (CORS96) POSITION (EPOCH 2002.0) | | Computed by OPUS in Jun 2002 using 10 days of data. | | X = -2506735.462 m latitude = 44 03 57.45762 N | | Y = -3845598.250 m longitude = 123 05 53.28105 W | | Z = 4413438.827 m ellipsoid height = 112.245 m | | | | NAD_83 (CORS96) VELOCITY | | Predicted with on-line HTDP Jun, 2002. | | VX = 0.0049 m/yr northward = 0.0073 m/yr | | VY = 0.0029 m/yr eastward = 0.0025 m/yr | | VZ = 0.0052 m/yr upward = -0.0001 m/yr | |_____________________________________________________________________________| | | | L1 Phase Center of the current GPS antenna: OBEC CONS COOP CORS L1 PC C | | ----------------------------------------------------------------------- | | The Trimble Zephyr Geodetic with GP antenna | | (Antenna Code = TRM41249.00) was installed on 05/19/06. | | The L2 phase center is 0.003 m below the L1 phase center. | | PID = DH9603 | | | | | | ITRF00 POSITION (EPOCH 1997.0) | | Computed by OPUS in Feb 2002 using 10 days of data. | | X = -2506736.092 m latitude = 44 03 57.47565 N | | Y = -3845597.101 m longitude = 123 05 53.33294 W | | Z = 4413439.003 m ellipsoid height = 111.923 m | | | | The ITRF00 VELOCITY of the L1 PC is the same as that for the ARP. | | | | | | NAD_83 (CORS96) POSITION (EPOCH 2002.0) | | Computed by OPUS in Jun 2002 using 10 days of data. | | X = -2506735.489 m latitude = 44 03 57.45763 N | | Y = -3845598.293 m longitude = 123 05 53.28103 W | | Z = 4413438.877 m ellipsoid height = 112.316 m | | | | The NAD_83 (CORS96) VELOCITY of the L1 PC is the same as that for the ARP. | |_____________________________________________________________________________| * Latitude, longitude and ellipsoid height are computed from their corresponding cartesian coordinates using dimensions for the GRS 80 ellipsoid: semi-major axis = 6,378,137.0 meters flattening = 1/298.257222101... * WARNING: Mixing of antenna types can lead to errors of up to 10 cm. in height unless antenna-phase-center variation is properly modeled.