GIS: CORS Data
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CORS Data
 
CHES CORS POSITION DATA
Antenna Reference Point(ARP):

ITRF00 Position (EPOCH = 1997.0):

Computed by NGS using OPUS on 04/12/02 w/ 10 days of data bet. 3/29-4/08/02.

X
1217618.566 m
LATITUDE
39 57 05.94908 N
Y
-4742421.912 m
LONGITUDE
75 36 01.15977 W
Z
4073941.295 m
ELLIPSOID HEIGHT
108.193 m
ITRF00 VELOCITY Predicted with HTDP
VX
-0.01661 m/yr
Northward
0.00401 m/yr
VY
-0.00178 m/yr
Eastward
-0.01653 m/yr
VZ
0.00322 m/yr
Upward
0.00023 m/yr
NAD_83 POSITION (CORS96)
Computed by NGS using OPUS on 04/12/02 w/ 10 days of data bet. 3/29-08/02.
X
1217619.109 m
LATITUDE
39 57 05.92011 N
Y
-4742423.372 m
LONGITUDE
75 36 01.15292 W
Z
4073941.428 m
ELLIPSOID HEIGHT
109.466 m
NAD_83 VELOCITY Predicted with HTDP
VX
0.00000 m/yr
Northward
0.00000 m/yr
VY
0.00000 m/yr
Eastward
0.00000 m/yr
VZ
0.00000 m/yr
Upward
0.00000 m/yr
L1 Phase Center of the current GPS antenna:

TRIMBLE Zephyr Geodetic with Ground Plane
Antenna Code = TRM41249.00
The L2 phase center is 0.0032 m below L1 phase center.

ITRF00 Position (EPOCH = 1997.0):

Computed by NGS using OPUS on 04/12/02 w/ 10 days of data bet. 3/29-04/08/02.

X
1217618.580 m
LATITUDE
39 57 05.94908 N
Y
-4742421.964 m
LONGITUDE
75 36 01.15977 W
Z
4073941.341 m
ELLIPSOID HEIGHT
108.193 m
The ITRF00 VELOCITY of the L1 PC is the same as that for the ARP.
NAD_83 Position (CORS96):

Computed by NGS using OPUS on 04/12/02 w/ 10 days of data bet. 3/29-08/02.

X
1217619.123 m.
LATITUDE
39 57 05.92011 N
Y
-4742423.425 m
LONGITUDE
75 36 01.15292 W
Z
4073941.473 m
ELLIPSOID HEIGHT
109.537 m
The NAD_83 VELOCITY of the L1 PC is the same as that for the ARP.

Station Data File

Chester County provides thirty days of hourly observation and navigation data, available in RINEX and SSF format, on our ftp site ftp://gis.chesco.org/CHESCO_CORS The files are zipped, with one zip file per hourly observation. If you do not have a zip utility we have provided links to a few vendors below.

Zip Utility

Chester County does not endorse or promote these zip products. Any zip utility should work for extracting the data files.





Content Last Modified on 5/20/2005 2:39:55 PM





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