July 14, 2009
NHDT, Concord, NH - suffered a major software/computer hardware malfunction that
 has shut it down for now and the foreseeable future. We are trying to find funds 
to upgrade our software and hopefully our receiver. We will let you know when 
it is back up and running.
Brian and Curt

June 19, 2009
NDMB, Minot AFB, will be down for Operating Software upgrades beginning 
June 22, 2009 at 1200 UTC.  We expect this station to be off line till 
June 24, 2009 by 2100 UTC.  
I apologize for any inconvenience this may cause, but this upgrade is necessary
for our continued operations.
J-Anthony Crossett

Apr. 8, 2009
TN32 - Gallatin, TN
We just wanted to let you know that TN32 has been taken offline. This morning TN32 
stopped tracking satellites.  It has been removed from the network until this issue 
can be resolved.  We believe it is an antenna issue.  We will have it back in the 
network as soon as possible.  We will keep you posted.  - Bill Gallagher

Apr. 3, 2009
TSEA - Anchorage, AK
TSEA is down for upgrade maintenance and computer issues.  We are diligently 
working on solving the problem and will have it up and running ASAP.
- Bill Drake

Apr. 1, 2009
NCRD - Raleigh, NC
NCRD was shut down today in order to upgrade the equipment. 
We should be back online by 4/6/09.  Gary

COVX - Chesapeake Light, VA
We are having trouble with our inverter.  We are ordering a new one.  
Unfortunately, our site will not be up again until about mid-April.
Bryan

Feb. 19, 2009 
AZGB - Globe, AZ
This coming Saturday (21st) and Sunday (22nd), we (AZGB) will be moving our FTP server. 
This will result in a period of unavailability (but not loss) of data. 
Once the server is back online the backlogged data will be pushed out for normal collection.
Regards,
Tom Homan
AZGB operator 

Feb. 10, 2009 
TOA1 - 25 days without data.
TOA1 is on top of the Engineering Department building.
We are doing modifications to the cabling and communications.
This is causing a problem with posting our data.  I will try to get you
an estimated time of how long we are going to be down.

Jan. 22, 2009 
VT Trans - 
The Network will be down tomorrow beginning at 9:00 am. The server is physically
being moved to a different location, and a RAID is being installed.  It is 
anticipated that this work will take the majority of the day.  I will send 
notification when the system is back online.
Again, I apologize for the short notice and any inconvenience this may cause.
Dan Martin

Dec. 22, 2008 
This is to inform you that VTrans is experiencing issues with a number of their public facing web servers. These servers include the VT Geodetic Web and the primary CORS server. These systems have been taken off line until diagnosis and fixes are complete. I will provide updates as we have additional information.

Daniel J. Martin
Vermont State Geodetic Advisor
(802) 828-2952

Dec. 18, 2008 - WLA1 Tomball, TX - Coordinate and Velocity updated

Oct 7-8, 2008 - MN DOT
We are in the process of upgrading some of the CORS sites in Northern and Southern MN. 
This action requires a restart of the GPS server's which will take place at 5:00 PM on Tuesday, Oct. 7, 2008 and Wednesday, Oct. 8, 2008.
Impact to users: GPS corrections will not be available for approximately ½ hour each day.

Oct 6, 2008 - Alabama DOT
There is a planned power outage for Central Office on Monday, October 6, 2008, from 6:00 pm till 7:00 pm CDT.  
They will bring the power down to tie the new building addition to the power supply.  
This will result in shutting down all servers in preparation for the power outage.

Thanks,
ALDOT CORS Network

Sep 12, 2008 - Dayton, TX - JGS1
John Griffin's office took a direct hit in the hurricane. The roof collapsed,
and the office was destroyed, thus this base will not come back up.
Last data on Sep 12, 2008 at 15:00 UTC

Sep 10, 2008 - Granada, CO - GDAC
We need to replace the receiver and we haven't been able to make the necessary
road trip to do so.  I just found out that the profiler program has to send a 
Weather Service Tech out to the site, and we should be able to get them to 
troubleshoot and hopefully fix the problem for us in the not too distant future.
Seth

Sep 9, 2008 - FEI1
FORD Engineering Coop CORS in San Antonio will be up on Thursday Sep 11, 2008.

Sep 5, 2008 - Louisiana Sites 
Data flow has resumed from most LA sites with some gaps. The following sites
still are missing data:
BVHS, GRIS, HOUM, LMCN, LWES
KJUN has been decommisioned due to a >5cm change in coordinates on August 12, 2008
a replacement site has been submitted for consideration

Sep 4, 2008 - Louisiana Sites
USCG sites in New Orleans are now available.

Sep 3, 2008 - Louisiana Sites
Widespread power outages after hurrican Gustav have precluded an assesment 
by the Louisiana Center for Geoinformatics of the state of their network. 
Their server room still does not have robust power.

Aug 28, 2008 - GCGT
George Town, Cayman Islands
We are currently under hurricane watch re Gustav. We will be powering
down the receivers and storing them until the all clear is received.
We expect to loose transmission for a couple of days.

Aug 14, 2008 - NHUN
University of New Hampshire site in Durham
Unfortunately, during renovation of the building which the base station 
is fixed, a contractor accidently cut through one of the existing base 
station cables.  The replacement cable is on its way and should hopefully 
be reinstalled by the end of the week.

Aug 11, 2008 - FEI1
FORD Engineering Coop CORS in San Antonio will be down for a couple of days while their receiver is being repaired.

Aug 4, 2008 - PKTN
The OHDOT CORS located at the Piketon County Garage (PKTN) will be going offline
within the next couple of days. The station will be down for approximately 
3 months while the county garage is undergoing some major rehabilitation. 
The monument will not be disturbed in any way so the ARP coordinates will 
remain the same.

July 17, 2008 - LANC
Our CORS will be offline starting July 18 at 4 and
will resume logging July 21 in the morning.

June 6, 2008 - OKMU
I have checked into the problem, and have it identified.  The laptop there 
has a fatal error and needs to be rebuilt. I am in this process but it looks 
like it will take 2 more weeks,  I will keep you advised.

May 30, 2008 - Georgetown, DE ( DEDS )
DEDS will be offline until we can correct some software issues. The
NetRS receiver has been replaced with a NETR5 receiver. Hope to resolve
issues no later than 6/4. Thanks.
John Collier

May 29, 2008 - Globe, AZ ( AZGB )
We've had a failure of the air conditioning in our server room. 
Temp is over 100dF now and rising. IT is shutting down servers for protection. 
So AZGB may be offline with loss of data until further notice.

Mar 25, 2008 - Casper, WY ( CASP )
The CASP CORS station in Casper, Wyoming will be off-line the morning of
April 3, 2008 for maintenance and an equipment swap. The outage will start
at approximately 0730 local and hopefully will be finished by 1200 local.
Data will not be logged during this period.

Jan 24, 2008 - Buckeye, AZ ( AZBK )
The building has lost internet connection. We are persistently trying to
get it reconnected. I will send a status report next Tuesday.

Pt. Loma, CA ( PLO5 and PLO6 )
Due to the equipment upgrade at Pt. Loma, CA today ( Jan 25, 2008 ), you will
not receive data from the reference stations or GSOS from 1000 - 2200 PST

Also note that the same applies for the Driver, Virginia equipment upgrade
on Jan 31, 2008 from 0900 - 2200 EST.

Casper, Wyoming ( CASP )
Our site will be down for approximately one hour on Monday, January 14th
starting at 3:30pm local time (22:30utc) for PC maintenance.

All South Caroline Geodetic Survey Sites
Alll sites unavailble:

The  server that housed the data files was taken off line Tuesday 
and has been out of service since.  There was a need to rebuild 
the server.  As soon as things are operational again, I will 
update.  Unfortunately data files were not collected during this 
period.

NCSY
NCSY is still down.  The college changed the IP address and we will 
have to wait until the IT staff at the college returns next week 
before we can get the new IP address.

Coamo, PR ( PR4N )
PR4N will be out of service this week, starting on Wednesday Jan 9.
The receiver is not  working properly and needs to be repaired.

New Mexico Department of Transportation Sites
On Friday, January 11th the NM DOT servers will be down for a move and 
standard maintenance.  They only expect to be down for 1 day.

U.S. Coast Guard CORS Site Replacement dates

Flagstaff      FST_    6 - 7  DEC 07   
Bakersfield    BKR_   25 - 26 FEB 08 
Essex          CAE_   28 - 29 FEB 08 
Austin         AST_   18 - 19 MAR 08 
Summerfield    STL_   24 - 25 MAR 08 
Hawk Run       HRN_   27 - 28 MAR 08 
Medora         MDR_    7 - 8  APR 08   
Myton          MYT_   17 - 18 APR 08 
Hudson Falls   HDF_    1 - 2  MAY 08   
Pine River     PNR_    6 - 7  MAY 08   
Clark          CLK_    8 - 9  MAY 08   
Spokane        SPN_   19 - 20 MAY 08  
Polson         PLS_   22 - 23 MAY 08


Oklahoma CORS
Due to weather, power is out at various loctions across the State of Oklahoma.
The power companies say 7-10 days for complete recovery.   Add to this the 
forecast for more rain, sleet and freezing rain for the next few days, in short,
data download for ODOT CORS will be spotty at best.  I will be checking sites 
daily and will update you when they become reliable.  So for now, any data
received from ODOT CORS should be veiwed as the exception, not the rule.
Steve 'iceman' Telford 

North Carolina Geodetic Survey (NCGS) sites
We are experiencing difficulties downloading data from NCGS to Silver Spring.
However, we are able to download the data to our secondary server in Boulder.
From there we will pull the data and make it available here in Silver Spring so
OPUS and User Friendly CORS can have direct access to it.  This will be the
method until Monday Dec. 17, 2007

You can access our Boulder server directly at...
ftp://alt.ngs.noaa.gov/cors/rinex

AZGB - Globe, AZ
We will be doing some planned maintenance on the FTP and GPS servers on 17Dec07 during normal working hours.
The GPS server will have service packs installed coupled with server reboot resulting in loss of 1 hour of data.
The FTP server will be updated to a new version that may take a portion of the day.
Regards,
Tom Homan
AZGB site operator

PSCC - Pellissippi State - Knoxville, TN
The PSCC GPS base station receiver is scheduled to be upgraded on 11/01/07.
Starting at 9:00am, and will be down for the day for system maintenance.

NPRI - Newport, RI - Monday Oct. 29
Today I spoke with Mr. Gray at NPRI and he told me that the power to
the building has been shut down and the building will be demolished within
a week or so - Ernie M.
NPRI decommissioned effective 2007/271 ( Sep 28, 2007 )

NEGI - Grand Island, NE - Thursday Oct. 25
We are having a new Trimble NetR5 Reference Station installed on
Thursday October 25th. The NEGI CORS reference could possibly be
offline until Monday October 29th.

Florida DOT CORS and UFCORS - Oct 12, 2007
Ongoing failures by UFCORS to provide data from sites from the FLDOT CORS
has been resolved. The issue revolved around compatability of user software
RINEX 2.10 and RINEX 2.11 and C2 observables. Previous data for the last 30
days will be corrected tonight, earlier data will require a delay of about
1 week. Sorry not to have been able to resolve this problem sooner. G. Sella.

Ohio DOT CORS System Notice - Oct 7, 2007
The Ohio CORS servers and ftp site will be off-line on Sunday, October 7, 2007 
from 8:00am to 5:00pm.  The State of Ohio Computing Center (where our servers 
are located) will be upgrading UPS capacity and all power to the building will 
be shutdown for most of the day.  The Ohio GPS receivers will still be 
collecting and storing data internally and will upload to the ftp directory 
when the servers are brought back on-line.

DP3A - Naperville, IL - Oct 03, 2007
The Naperville IL. base station In DuPage County is going to be down for 
repairs. We plan on replacing the older 500 series unit with a new 1200 series.

LVWD - Las Vegas, NV - Sep 28, 2007
This site will be decommissioned as of Friday, Sept. 28, 2007 due to proposed 
construction on the existing building, which will compromise the antenna mount.
Please note, this will not take effect until Friday, Sept. 28, 2007. 

Coop CORS members required to update station log files.

For many years the Cooperative CORS sites had little restrictions as to the style of their log files. We are now urging those members to follow the guidelines set forth by the International GPS Service ( IGS ). These guidelines were established in order to retrieve the necessary metadata easily and without error. For more information on creating the proper file see Appendix 2 of the CORS Guidelines.