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An Official Vermont Government Website

News Archive

  • 2015

    • 05/11/2015 VT Geodetic Advisor transitioned to Northeast Regional Geodetic Advisor

    • April 2015, VECTOR website created for data download and real time account management. VECTOR provides VRS corrections in addition to single base.

    • OPUS-Database (OPUB-DB) granted Initial operational capability (IOC). NGS' OPUS database allows users of OPUS the option to publish their results in the NGS Database. OPUS-DB requires a minimum of 4 hours of duel frequency data, and certain horizontal and vertical accuracies must be met. See more here.

    • Vermont CORS Network Expanded - RTK Corrections Available

    • NGS releases new NAD83 adjustment

    • NGS releases OPUS-RS (Rapid Static)

    • New Vermont Geodetic Survey Web

    • NGS has released GEOID09. Online computation, technical details and downloads available here

    • In an ongoing effort to provide the users of Vermont's Geodetic control with a single location for all control, we have added the OPUS_DB (OPUS Database) points in Vermont to the VOLGIS application.

    • March 23, 2015 - Raw data is now available for the Johnson CORS (VJSC) located at Johnson State College. This station will not be submitted to NGS for inclusion in the National CORS Network.

    • Raw data is now available for the Enosburg Falls CORS (VTEB). The station has been submitted to NGS for inclusion in the National CORS Network.

  • 2013

    • December 23, 2013 - RTCM data streams are now available for VTEB

    • November 08, 2013 - Internet connection has been made to VTEB and data is being collected to compute a preliminary position.

    • October 03, 2013 - A new CORS station was installed at the State Maintenance Garage in Enosburg Falls (VTEB). Internet connection has not been made at theis point.

    • January 29, 2013 - NGS has computed a new realization of NAD 83 (NAD 83(2011) epoch 2010.00). This realization has been implemented by NGS for all National CORS. In order to be consistent, Vermont will be implementing this new realization on Friday February 15, 2013. At this time, users should also start employing the new Geoid Model (Geoid12a) to be consistent with the new ellipsoid heights.

  • 2012

    • June 08, 2012 - RICHMOND CORS APR (VTRI) is now incorporated into the National CORS Network.

  • 2011

    • July 22, 2011 - Hardwick CORS APR (VTHA) is now incorporated into the National CORS Network.

    • June 14, 2011 - The CORS station has been installed in Richmond (VTRI). Data for this station is available for download as well as for RTK applications.

    • The Receiver at the Rutland CORS (VTRU) has been removed from the site and is being sent in for diagnostics/service. It is expected that this process will take a week or two at a minimum. We are in hopes that the repair is fairly simple and that the receiver will be back in service soon. We will provide an update when we know more.

    • February 25, 2011 - The CORS station has been installed in Hardwick (VTHA). Data for this station is available for download as well as for RTK applications.

  • 2010

    • September 30, 2010 - The CMR+ data streams for all VT CORS will be eliminated on October 12, 2010. The RTCM v3.1 will replace the functionality of the CMR+ data stream.

    • As of Jan. 08 2010, RTCM v. 3.1 is available for all VT real-time stations. This now allows non-Trimble users to access GLONASS data in real-time. After an appropriate testing period, the current CMR+ data streams will be removed and completely replaced by the RTCM v. 3.1 streams. All all real-time users are encouraged to begin using the v. 3.1 data in place of CMR+ or RTCM v. 2.3. For users who do not require GLONASS or who are conducting resource grade type observations, the RTCM v. 2.3 formats will continue to be available.

  • 2009

    • May 28, 2009 - CORS Station VTIP (Island Pond) is now published as a National CORS. The official data, coordinates, and site logs are available on the NGS CORS Page as well as this site.

    • May 21, 2009 - CORS Station VTMI (Middlebury) is now published as a National CORS. The official data, coordinates, and site logs are available on the NGS CORS Page as well as this site.

    • April 25, 2009 - Danby CORS APR (VTDA) is now incorporated into the National CORS Network.

    • April 22, 2009 - Connection to VTD7 was lost yesterday at approximately 1:20pm. Connection was restored this morning at approximately 8:35am. Data for VTD7 during this period is not recoverable.

    • April 10, 2009 - We are experiencing intermittent connection problems to the CORS stations. There is no one station that is having this issue, and it appears to be random. When it is determined that the connection has been lost, it can be easily restored, however should the communications be lost at night or on the weekend, it will not be restored until we get back into the office during normal business hours. We are working to determine cause and will hopefully resolve this issue soon.

    • March 18, 2009 - Connection to VTD7 has been restored. Data is being collected for post-processing and the real-time data stream is available.

    • March 13, 2009 - On March 12 at 2:45 eastern time, a configuration change to the State's firewall has temporarily disabled connection to VTD7. The issue is being worked on and a notice will be posted when resolved.

    • February 25, 2009 - Now that the new data storage device is in place, there is ample space to add additional data storage options. To minimize download time for those users not requiring 1-second data, we have created a 15-second data storage option for each receiver. 15-second data is available in both the Trimble .dat format as well as RINEX.

    • February 17, 2009 - CORS Station VTBE (Bennington) is now published as a National CORS. The official data, coordinates, and site logs are available on the NGS CORS Page as well as this site.

    • February 11, 2009 - The CORS server and Real-time system will be down for scheduled maintenance from 8:00am to 10:00am on Thursday February 12, 2009.

    • January 27, 2009 - The CORS station has been installed in Island Pond. Data for this station is available for download beginning on day 027 (January 27,2009) as well as for RTK applications.

    • January 16, 2009 - There has been and continues to be problems associated with the function of VOLGIS. It is likely that periodic outages will occur until the issue is resolved. We apologize for any inconvenience this may cause.

      • and the system is back up. Data for VTWR, VTC1, and VTSA may not be available, or partially available during the outage period.

  • 2008

    • October 16, 2008 - A CORS installation is planned for Brighton (Island Pond). This installation is scheduled for the last week in October. Data for this station should be available by the end of November.

    • October 16, 2008 - CORS stations have been installed in Bennington, Danby, and Middlebury. Data for these stations are available for download beginning on day 283 (October 09, 2008) as well as for RTK applications.

    • June 20, 2008 - Connection to VTRU was restored as of June 19, 2008 3:31 pm Eastern Time.

    • June 16, 2008 - CORS Station VTRU is currently down due to a strong storm what hit Rutland, VT on the evening of Saturday June 14. High winds that brought down trees has severed internet communications at the State's Rutland Hub. Crews are working to resolve the issue.

    • June 12, 2008 - CORS Stations VTD7 (St. Johnsbury) and VTRU (Rutland) are now published as National CORS. The official data, coordinates, and site logs are available on the NGS CORS Page as well as this site. The remaining station VTRW is currently under review

    • May 23, 2008 - Connection to VTSA was restored as of 2:45 Eastern Time

    • May 23, 2008 - On May 22, 6:45 Eastern Time, network connection to station VTSA was lost. It was anticipated that there would be a short outage as a result of a change of ISP at the site, however more significant problems have been encountered. The issue is being worked on and a notice will be posted once connection is regained. We apologize for any inconvenience this may have caused.

    • January 31, 2008 - On January 30, 2008 NGS officially accepted six of the VT stations into the National CORS Network. These stations are VTOX, VTD9, VTD2, VTC1, VTSA, and VTSP. The official data, coordinates, and site logs are available on the NGS CORS Page as well as this site. The remaining stations VTRW, VTD7, and VTRU are currently under review of the NGS Site Selection Team and it is anticipated that these stations will be accepted in a number of months.

  • 2007

    • December 20, 2007 - Preliminary CORS Site Logs now available - Antenna and Receiver info for post-processing

    • August 14, 2007 - Internet connection has been restored to VTSA and VTC1

    • August 13, 2007 - Station VTSA and VTC1 are experiencing internet connection problems. No data has been received from VTSA since 08/09/07 and from VTC1 since 08/12/07. We are working to resolve these problems.

    • August 07, 2007 - Four new CORS planned

    • April 16, 2007 - Receiver and antenna changed at station VCAP.

    • April 18, 2007 - New webpage on line - VECTOR in initial operation status.