***ITRF 00*** CUMBERLAND COOP (ALLG), MARYLAND Revised Coordinate April 10, 2006 _____________________________________________________________________________ | | | Antenna Reference Point(ARP): CUMBERLAND COOP CORS ARP | | ------------------------------------------------------ | | PID = DF6303 | | | | | | ITRF00 POSITION (EPOCH 1997.0) | | Computed in April 2006 using 125 days of data. | | X = 960972.827 m latitude = 39 39 13.91827 N | | Y = -4822645.300 m longitude = 078 43 50.51407 W | | Z = 4048582.118 m ellipsoid height = 174.516 m | | | | ITRF00 VELOCITY | | Predicted with on-line HTDP ver 2.8 in Apr 2006 | | VX = -0.0166 m/yr northward = -0.0007 m/yr | | VY = -0.0017 m/yr eastward = -0.0166 m/yr | | VZ = -0.0022 m/yr upward = -0.0026 m/yr | | | | | | NAD_83 (CORS96) POSITION (EPOCH 2002.0) | | Transformed from ITRF00 (epoch 1997.0) position in Apr 2006. | | X = 960973.367 m latitude = 39 39 13.88939 N | | Y = -4822646.750 m longitude = 078 43 50.50374 W | | Z = 4048582.226 m ellipsoid height = 175.761 m | | | | NAD_83 (CORS96) VELOCITY | | Transformed from ITRF00 velocity in Apr 2006. | | VX = -0.0000 m/yr northward = -0.0034 m/yr | | VY = 0.0000 m/yr eastward = 0.0000 m/yr | | VZ = -0.0044 m/yr upward = -0.0028 m/yr | |_____________________________________________________________________________| | | | L1 Phase Center of the current GPS antenna: CUMBERLAND COOP CORS L1 PC C | | ------------------------------------------------------------------------ | | The Permanent L1/L2 antenna | | (Antenna Code = TRM23903.00) was installed on 12/xx/99. | | The L2 phase center is 0.001 m below the L1 phase center. | | PID = DF6304 | | | | | | ITRF00 POSITION (EPOCH 1997.0) | | Computed in April 2006 using 125 days of data. | | X = 960972.839 m latitude = 39 39 13.91831 N | | Y = -4822645.357 m longitude = 078 43 50.51406 W | | Z = 4048582.168 m ellipsoid height = 174.593 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 Apr 2006. | | X = 960973.379 m latitude = 39 39 13.88943 N | | Y = -4822646.807 m longitude = 078 43 50.50372 W | | Z = 4048582.276 m ellipsoid height = 175.838 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 position was revised in Apr 2006. * The NAD_83 position & velocity were revised in Apr 2006. *************************************************************************** *************************************************************************** old coord ***ITRF 00*** CUMBERLAND COOP (ALLG), MARYLAND Retrieved from NGS DataBase on 04/10/06 at 12:47:24. _____________________________________________________________________________ | | | Antenna Reference Point(ARP): CUMBERLAND COOP CORS ARP | | ------------------------------------------------------ | | PID = DF6303 | | | | | | ITRF00 POSITION (EPOCH 1997.0) | | Computed by OPUS in Apr 2002 using 10 days of data in 2nd month | | X = 960972.822 m latitude = 39 39 13.91714 N | | Y = -4822645.316 m longitude = 078 43 50.51442 W | | Z = 4048582.084 m ellipsoid height = 174.506 m | | | | ITRF00 VELOCITY | | Predicted with on-line HTDP May 2002. | | VX = -0.0166 m/yr northward = -0.0007 m/yr | | VY = -0.0017 m/yr eastward = -0.0166 m/yr | | VZ = -0.0022 m/yr upward = -0.0026 m/yr | | | | | | NAD_83 (CORS96) POSITION (EPOCH 2002.0) | | Computed by OPUS in Apr 2002 using 10 days of data in 2nd month | | X = 960973.359 m latitude = 39 39 13.88898 N | | Y = -4822646.765 m longitude = 078 43 50.50421 W | | Z = 4048582.221 m ellipsoid height = 175.768 m | | | | NAD_83 (CORS96) VELOCITY | | Predicted with on-line HTDP May 2002. | | VX = 0.0000 m/yr northward = 0.0000 m/yr | | VY = 0.0000 m/yr eastward = 0.0000 m/yr | | VZ = 0.0000 m/yr upward = 0.0000 m/yr | |_____________________________________________________________________________| | | | L1 Phase Center of the current GPS antenna: CUMBERLAND COOP CORS L1 PC C | | ------------------------------------------------------------------------ | | The Permanent L1/L2 antenna | | (Antenna Code = TRM23903.00) was installed on 12/xx/99. | | The L2 phase center is 0.001 m below the L1 phase center. | | PID = DF6304 | | | | | | ITRF00 POSITION (EPOCH 1997.0) | | Computed by OPUS in Apr 2002 using 10 days of data in 2nd month | | X = 960972.834 m latitude = 39 39 13.91718 N | | Y = -4822645.373 m longitude = 078 43 50.51440 W | | Z = 4048582.134 m ellipsoid height = 174.583 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 Apr 2002 using 10 days of data in 2nd month | | X = 960973.371 m latitude = 39 39 13.88902 N | | Y = -4822646.822 m longitude = 078 43 50.50420 W | | Z = 4048582.271 m ellipsoid height = 175.845 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.