NOAA Satellite Information System

LRIT Administrative Notices

All GOES East LRIT Users:

The following is the most current GOES-13 to GOES-16 Transition Schedule.

GOES-13/GOES-16 upcoming schedule:
11/30/2017 – GOES-16 will start drifting 1.14° a day to the east.
12/07/2017 - GOES-13 GVAR and LRIT will be patched through GOES-14, users at this time should point their antennas at GOES-14, located at 105° West.
12/11/2017 – GOES-16 will arrive at 75.2° West, beginning a 3-week period co-located with GOES-13.
12/14/2017 - GOES-13 DCS, EMWIN, LRIT and SARSAT will be disabled @1532 UTC. Nominal GOES-13 GVAR will be disabled, but still re-routed to GOES-14.
12/14/2017 - GOES-16 GRB, DCS, HRIT/EMWIN and SARSAT will be enabled @1545 UTC. All data distribution will be turned on and GOES-16 will be the operational GOES East satellite.
01/02/2018 – GOES-14 re-routed GVAR and LRIT will be disabled, GOES-13 will start drifting to the east.
01/22/2018 - GOES-13 arrives at 60° West.

All GOES East EMWIN Users:

An EMWIN broadcast on GOES-14 will be available for a 6-month overlap past GOES East transition on December 14th, 2017. The broadcast from GOES-14 provides GOES-East users an additional opportunity to continue to use their existing EMWIN satellite receivers and software, while making preparations for transitioning to the new HRIT/EMWIN broadcast which is scheduled to become operational on December 14, 2017, when GOES-16 replaces GOES-13 at the GOES-East station at 75.2° West longitude. GOES-14 is expected remain in its present geosynchronous orbit at 105° West longitude, throughout this service period.

The EMWIN broadcast characteristics:
Frequency: 1692.7 MHz
Modulation: Offset QPSK
Data rate: 19.2 kbps
Data format: EMWIN Quick Block Transfer (QBT) packets

Please visit http://www.nws.noaa.gov/emwin for more information.

Any questions or comments may be addressed to nws.emwin.support@noaa.gov.

All GOES West LRIT Users:

The first of the National Oceanic and Atmospheric Administration’s (NOAA) Geostationary Operational Environmental Satellite-R Series (GOES-R) series of satellites was launched on November 19, 2016, as GOES-16 and will become the primary GOES East satellite on December 2017. NOAA’s National Environmental Satellite, Data, and Information Service (NESDIS) plans to launch the follow up satellite GOES-S in spring of 2018 of which will ultimately become the operational GOES West satellite at a later date to be identified.

All GOES West LRIT users are reminded when GOES-S replaces GOES-15 in the west location of 135 degrees, users will need to modify legacy equipment to become HRIT/EMWIN compatible.

More information about the HRIT/EMWIN service and prototype receiver.

All questions regarding HRIT/EMWIN and the legacy LRIT broadcast can be forwarded to seth.clevenstine@noaa.gov.

 

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