Coordinates and/or velocities were revised for 36 CORS

August 30, 2007

CORS COORDINATE CHANGES

Coordinates and/or velocities were revised for 36 CORS (Read Newsletter August 20,
2007):

Changes to ITRF2000, epoch 1997.0

CA P576
CO DSRC
GA GACO (effective 2007-01-24 due to tribrach addition)
IA SLAI
MI DET1 DET2 MPLE SUP2
MN PNR1 PNR2
NE NLGN
NY HDF1 (effective 2007-07-27 due to unstable motion)
ND MDR3 MDR4
OK OKMU (effective 2007-02-09 due to unknown motion)
OR CABL CHZZ CORV DDSN ORS1 ORS2
SD CLK1
TN ZME1 (effective 2003-05-02 due to antenna replacement)
UT RBUT SLCU (effective 2002-02-13 due to change in subsidence rate)
VA COVX
WA CPXF GWEN GWN2
WI STB1 STB2

El Salvador SSIA (effective 2001-02-14 due to earthquake)
Guatemala GUAT
Jamaica JAMA (effective 2006-06-18 due to unknown motion)
Nicaragua MANA
Puerto Rico ZSU1 (effective 2006-03-21 due to antenna replacement)

The changes to NAD83 (CORS96), epoch 2002.0, coordinates are:

ARP Difference (CABL) Horz = 0.001 m Vert = 0.014 m
ARP Difference (CHZZ) Horz = 0.012 m Vert = 0.006 m
ARP Difference (CLK1) Horz = 0.002 m Vert = -0.036 m
ARP Difference (CORV) Horz = 0.005 m Vert = -0.019 m
ARP Difference (CPXF) Horz = 0.006 m Vert = -0.007 m
ARP Difference (DDSN) Horz = 0.008 m Vert = -0.006 m
ARP Difference (DSRC) Horz = 0.004 m Vert = -0.022 m
ARP Difference (GACO) Horz = 0.004 m Vert = 0.117 m
ARP Difference (GUAT) Horz = 0.020 m Vert = -0.010 m
ARP Difference (GWEN) Horz = 0.012 m Vert = -0.020 m
ARP Difference (GWN2) Horz = 0.009 m Vert = -0.023 m
ARP Difference (HDF1) Horz = 0.029 m Vert = 0.003 m
ARP Difference (JAMA) Horz = 0.022 m Vert = -0.030 m
ARP Difference (MANA) Horz = 0.016 m Vert = -0.000 m
ARP Difference (MDR3) Horz = 0.013 m Vert = -0.026 m
ARP Difference (MDR4) Horz = 0.016 m Vert = -0.025 m
ARP Difference (MPLE) Horz = 0.008 m Vert = -0.013 m
ARP Difference (NLGN) Horz = 0.010 m Vert = -0.039 m
ARP Difference (OKMU) Horz = 0.021 m Vert = 0.019 m
ARP Difference (ORS1) Horz = 0.021 m Vert = 0.006 m
ARP Difference (ORS2) Horz = 0.025 m Vert = -0.001 m
ARP Difference (P576) Horz = 0.026 m Vert = 0.008 m
ARP Difference (RBUT) Horz = 0.002 m Vert = -0.004 m
ARP Difference (SLAI) Horz = 0.005 m Vert = -0.009 m
ARP Difference (SLCU) Horz = 0.003 m Vert = 0.034 m
ARP Difference (SSIA) Horz = 0.008 m Vert = -0.011 m
ARP Difference (STB2) Horz = 0.013 m Vert = 0.036 m
ARP Difference (ZME1) Horz = 0.026 m Vert = 0.006 m
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