Static GPS Data
Our GPS Reference Base Station receiver is located at the Public Works Department office at 69 Stony Circle in Santa Rosa.
Horizontal coordinates currently used for this station are on the City of Santa Rosa's Horizontal Control Network which is based on the California Coordinate System, Zone 2, NAD 83 91.35. Vertical information is based on NAVD 88.
Horizontal: NAD 83 Epoch 1991.35
N 1,923,182.2199 ft
E 6,347,713.9843 ft
Vertical: NAVD 88
Ellipsoidal Height 39.4555 ft.
Orthometric Height 142.081 ft
GPS information is provided as a courtesy without guarantee regarding accuracty or completeness.
Data is available for post processing and is recorded to our server with a one second observation rate and stored in 1 hour blocks within "ZIP" files. The data is available at our FTP site:
ftp://anon.ci.santa-rosa.ca.us/gps.
Instructions are available for use of this data.
Real Time GPS Data
Data for real time, kinematic, surveying is available. This data is ported out from our reference base station receiver in RTCM SC-104 version 2.3, type 18/19 format, to an internet IP address where it can be obtained using a wireless data modem used in conjunction with a rover GPS receiver.
Real time data can be accessed at the following IP address and port:
IP address: 64.164.111.80
Port: 9949
Thursday night, April 12, 2012 the IP address for accessing real time data will be changed to:
IP address: 75.44.166.85
Port: 9949