Topic: GOES-10 to GOES-11 Transition Plan
Message Issued: May 10, 2006, 1900 UTC
Satellites Impacted: GOES-10 and GOES-11
Products Impacted: GOES-10 and GOES-11 Imager and Sounder Data and
Associated Products including AWIPS
Date/Time of Initial Impact: On or About June 27, 2006.
-----------------------------------------
Details:
***GOES-11 is scheduled to replace GOES-10 as the GOES-West operational
spacecraft on June 27, 2006***
(The exact time to be determined, but likely in the 1800-1900Z time frame)
This message is to provide additional information on a planned
transition from GOES-10 to GOES-11 as the operational GOES-West
spacecraft. Characteristics of the Imager and Sounder are similar from
GOES-10 to GOES-11 (except GOES-10 is currently operating in a Yaw Flip
mode). Additional information can be found at:
http://www.osd.noaa.gov/Gvar/gvardownload.htm ). Ground equipment may
require adjustments to satellite id.
The plans developed are intended to cause as few disruptions to all
users who need to acquire the GOES-11 GVAR signal via a ground antenna.
An up to date synopsis:
(1) GOES-11 is currently being taken out of Z-axis storage and being
moved to the 135 degrees West position.
(2) As GOES-11 arrives close to 135 degrees West, GOES-11 data will be
flowed through GOES-10 communication links (on or about June 27, 2006),
thus, GOES-11 data is operational but received through GOES-10
downlink. Users point to GOES-10 to receive GOES-11 data. At this point
GOES-11 data are considered operational, but should significant problems
occur, GOES-10 data can be reestablished quickly.
(3) As GOES-11 is within 1 degree of GOES-10, will turn off GOES-10
signal, and acquire GOES-11 data directly from GOES-11, not GOES-10.
Users should not need to repoint their antenna, as the two satellites
are very close.
(4) Switch ancillary communication services (DCS, LRIT, EMWIN, SAR) from
GOES-10 to GOES-11, **date TBD**
(5) Pending the successful launch and checkout of GOES-N (launch
scheduled for May 20, 2006), GOES-10 will be moved to 60 degrees West at
a rate of 0.6 degrees per day for South American support in October 2006.
These intricate steps are necessary to provide a continuous flow of
data, with minimal impact to users. There should be no need to readjust
antenna unless there is a desire to acquire GOES-11 data prior to
GOES-11 becoming operational. (We are awaiting on final plans from
OSO/SOCC concerning the startup of GOES-11 INR and GVAR)
----------------------------------------
Contact Information:
Brian Hughes
Satellite Services Division
NOAA/NESDIS/OSDPD
301-763-8051 x106
brian.hughes@xxxxxxxx
See http://www.ssd.noaa.gov/PS/SATS/messages.html for this and other
satellite related messages.
See http://www.ssd.noaa.gov for full GOES scanning schedules.
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