***IGS 08***
                ALBERT HEAD (ALBH),  BRITISH COLUMBIA

 Created on 31Aug2011 at 09:27:32.
 _____________________________________________________________________________ 
|                                                                             |
|         Antenna Reference Point(ARP): ALBERT HEAD CORS ARP                  |
|         --------------------------------------------------                  |
|                             PID = DE6629                                    |
|                                                                             |
|                                                                             |
| IGS08 POSITION (EPOCH 2005.0)                                               |
| Published by the IGS in Nov 2010.                                           |
|     X =  -2341332.989 m     latitude    =  48 23 23.21247 N                 |
|     Y =  -3539049.566 m     longitude   = 123 29 14.89350 W                 |
|     Z =   4745791.399 m     ellipsoid height =   31.843   m                 |
|                                                                             |
| IGS08 VELOCITY                                                              |
| Published by the IGS in Nov 2010.                                           |
|     VX =  -0.0102 m/yr      northward =  -0.0079 m/yr                       |
|     VY =  -0.0008 m/yr      eastward  =  -0.0081 m/yr                       |
|     VZ =  -0.0048 m/yr      upward    =   0.0006 m/yr                       |
|                                                                             |
|                                                                             |
| NAD_83 (2011) POSITION (EPOCH 2010.0)                                       |
| Transformed from IGS08 (epoch 2005.0) position in Aug 2011.                 |
|     X =  -2341332.215 m     latitude    =  48 23 23.19687 N                 |
|     Y =  -3539050.742 m     longitude   = 123 29 14.83058 W                 |
|     Z =   4745791.297 m     ellipsoid height =   32.135   m                 |
|                                                                             |
| NAD_83 (2011) VELOCITY                                                      |
| Transformed from IGS08 velocity in Aug 2011.                                |
|     VX =   0.0091 m/yr      northward =   0.0058 m/yr                       |
|     VY =  -0.0001 m/yr      eastward  =   0.0076 m/yr                       |
|     VZ =   0.0031 m/yr      upward    =  -0.0010 m/yr                       |
|_____________________________________________________________________________|
|                                                                             |
| L1 Phase Center of the current GPS antenna: ALBERT HEAD CORS L1 PC C        |
| --------------------------------------------------------------------        |
| The Dorne Margolin T, chokerings (TurboRogue) antenna                       |
| (Antenna Code = AOAD/M_T        NONE) was installed on 07Jun1995 at 2052GMT.|
|        The L2 phase center is 0.028 m above the L1 phase center.            |
|                             PID = DE6630                                    |
|                                                                             |
|                                                                             |
| IGS08 POSITION (EPOCH 2005.0)                                               |
| Published by the IGS in Nov 2010.                                           |
|     X =  -2341333.022 m     latitude    =  48 23 23.21249 N                 |
|     Y =  -3539049.616 m     longitude   = 123 29 14.89352 W                 |
|     Z =   4745791.468 m     ellipsoid height =   31.935   m                 |
|                                                                             |
| The IGS08 VELOCITY of the L1 PC is the same as that for the ARP.            |
|                                                                             |
|                                                                             |
| NAD_83 (2011) POSITION (EPOCH 2010.0)                                       |
| Transformed from IGS08 (epoch 2005.0) position in Aug 2011.                 |
|     X =  -2341332.248 m     latitude    =  48 23 23.19689 N                 |
|     Y =  -3539050.792 m     longitude   = 123 29 14.83060 W                 |
|     Z =   4745791.366 m     ellipsoid height =   32.226   m                 |
|                                                                             |
| The NAD_83 (2011) VELOCITY of the L1 PC is the same as that for the ARP.    |
|_____________________________________________________________________________|
|                                                                             |
|         Monument: ALBERT HEAD CORS MON.                                     |
|         -------------------------------                                     |
|                             PID = DE6631                                    |
|         Inscribed: 927000                                                   |
|                                                                             |
|                                                                             |
| IGS08 POSITION (EPOCH 2005.0)                                               |
| Published by the IGS in Nov 2010.                                           |
|     X =  -2341332.952 m     latitude    =  48 23 23.21246 N                 |
|     Y =  -3539049.510 m     longitude   = 123 29 14.89351 W                 |
|     Z =   4745791.324 m     ellipsoid height =   31.743   m                 |
|                                                                             |
| The IGS08 VELOCITY of the monument is the same as that for the ARP.         |
|                                                                             |
|                                                                             |
| NAD_83 (2011) POSITION (EPOCH 2010.0)                                       |
| Transformed from IGS08 (epoch 2005.0) position in Aug 2011.                 |
|     X =  -2341332.178 m     latitude    =  48 23 23.19687 N                 |
|     Y =  -3539050.686 m     longitude   = 123 29 14.83058 W                 |
|     Z =   4745791.222 m     ellipsoid height =   32.035   m                 |
|                                                                             |
| The NAD_83 (2011) VELOCITY of the monument 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 and antenna-phase-center
   offset are properly modeled.  See next comment.

 * The coordinates shown on this page were computed using absolute antenna
   calibrations.  CORS coordinates began using absolute antenna calibrations
   beginning with IGS08 and NAD 83 (2011, MA11, PA11).  For additional
   information on the derivation of these positions and velocities and
   antenna calibrations consult:
   http://geodesy.noaa.gov/CORS/coords.shtml
   http://geodesy.noaa.gov/ANTCAL


 * The NAD_83 position & velocity were revised in Mar. 2002.
 * The position & velocity were revised in Aug 2011.