***ITRF 00*** SKAGIT CNTY COOP (OTIS), WASHINGTON Revised Coordinate June 26, 2006 _____________________________________________________________________________ | | | Antenna Reference Point(ARP): SKAGIT CNTY COOP CORS ARP | | ------------------------------------------------------- | | PID = DE6244 | | | | | | ITRF00 POSITION (EPOCH 1997.0) | | Computed in June 2006 using 506 days of data. | | X = -2268519.206 m latitude = 48 25 04.22853 N | | Y = -3583376.726 m longitude = 122 20 11.65144 W | | Z = 4747843.498 m ellipsoid height = 5.970 m | | | | ITRF00 VELOCITY | | Predicted with on-line HTDP Jun 2002. | | VX = -0.0148 m/yr northward = -0.0107 m/yr | | VY = -0.0006 m/yr eastward = -0.0122 m/yr | | VZ = -0.0066 m/yr upward = 0.0007 m/yr | | | | | | NAD_83 (CORS96) POSITION (EPOCH 2002.0) | | Transformed from ITRF00 (epoch 1997.0) position in June 2006. | | X = -2268518.607 m latitude = 48 25 04.20876 N | | Y = -3583377.904 m longitude = 122 20 11.59619 W | | Z = 4747843.339 m ellipsoid height = 6.298 m | | | | NAD_83 (CORS96) VELOCITY | | Transformed from ITRF00 velocity in June 2006. | | VX = 0.0046 m/yr northward = 0.0037 m/yr | | VY = 0.0003 m/yr eastward = 0.0037 m/yr | | VZ = 0.0025 m/yr upward = 0.0001 m/yr | |_____________________________________________________________________________| | | | L1 Phase Center of the current GPS antenna: SKAGIT CNTY COOP CORS L1 PC C | | ------------------------------------------------------------------------- | | The Geodetic L1/L2 compact +groundplane antenna | | (Antenna Code = TRM22020.00+GP) was installed on 04/19/97. | | The L2 phase center is 0.004 m below the L1 phase center. | | PID = DE6245 | | | | | | ITRF00 POSITION (EPOCH 1997.0) | | Computed in June 2006 using 506 days of data. | | X = -2268519.232 m latitude = 48 25 04.22852 N | | Y = -3583376.767 m longitude = 122 20 11.65147 W | | Z = 4747843.554 m ellipsoid height = 6.044 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 June 2006. | | X = -2268518.633 m latitude = 48 25 04.20875 N | | Y = -3583377.945 m longitude = 122 20 11.59622 W | | Z = 4747843.394 m ellipsoid height = 6.373 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 NAD_83 positions were revised in June 2006. *************************************************************************** *************************************************************************** old coord ***ITRF 00*** SKAGIT CNTY COOP (OTIS), WASHINGTON Retrieved from NGS DataBase on 06/26/06 at 17:46:53. _____________________________________________________________________________ | | | Antenna Reference Point(ARP): SKAGIT CNTY COOP CORS ARP | | ------------------------------------------------------- | | PID = DE6244 | | | | | | ITRF00 POSITION (EPOCH 1997.0) | | Computed by OPUS in Jun 2002 using 10 days of data. | | X = -2268519.231 m latitude = 48 25 04.22844 N | | Y = -3583376.745 m longitude = 122 20 11.65200 W | | Z = 4747843.528 m ellipsoid height = 6.012 m | | | | ITRF00 VELOCITY | | Predicted with on-line HTDP Jun 2002. | | VX = -0.0148 m/yr northward = -0.0107 m/yr | | VY = -0.0006 m/yr eastward = -0.0122 m/yr | | VZ = -0.0066 m/yr upward = 0.0007 m/yr | | | | | | NAD_83 (CORS96) POSITION (EPOCH 2002.0) | | Computed by OPUS in Jun 2002 using 10 days of data. | | X = -2268518.632 m latitude = 48 25 04.20870 N | | Y = -3583377.923 m longitude = 122 20 11.59674 W | | Z = 4747843.370 m ellipsoid height = 6.342 m | | | | NAD_83 (CORS96) VELOCITY | | Predicted with on-line HTDP Jun 2002. | | VX = 0.0047 m/yr northward = 0.0037 m/yr | | VY = 0.0003 m/yr eastward = 0.0038 m/yr | | VZ = 0.0024 m/yr upward = -0.0000 m/yr | |_____________________________________________________________________________| | | | L1 Phase Center of the current GPS antenna: SKAGIT CNTY COOP CORS L1 PC C | | ------------------------------------------------------------------------- | | The Geodetic L1/L2 compact +groundplane antenna | | (Antenna Code = TRM22020.00+GP) was installed on 04/19/97. | | The L2 phase center is 0.004 m below the L1 phase center. | | PID = DE6245 | | | | | | ITRF00 POSITION (EPOCH 1997.0) | | Computed by OPUS in Jun 2002 using 10 days of data. | | X = -2268519.258 m latitude = 48 25 04.22844 N | | Y = -3583376.786 m longitude = 122 20 11.65203 W | | Z = 4747843.583 m ellipsoid height = 6.086 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 = -2268518.659 m latitude = 48 25 04.20869 N | | Y = -3583377.964 m longitude = 122 20 11.59677 W | | Z = 4747843.425 m ellipsoid height = 6.416 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.