Subject: Administrative: Update #1 - NOAA-17 Data Transmission Change
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Content-Type: text/plain; charset=ISO-8859-1
Update #1: The Initial Impact Time has been changed from November
6, 2012
at 0000 UTC to November 6, 2012 at 0250 UTC. All other details of this
notification remain the same.
Topic: NOAA-17 Data Transmission Change
Date/Time Issued: November 5, 2012 1740 UTC
Product(s) or Data Impacted: NOAA-17 GAC Data & NOAA-17 HRPT Data
Date/Time of Initial Impact: November 6, 2012 0250 UTC
Date/Time of Expected End: This configuration change is effective
until
further notice.
Length of Outage: N/A
Details/Specifics of Change: Due to the loss of S-Band Transmitter #1
(STX1) on NOAA-17, a new data transmission configuration is being
promoted.
The new configuration will move HRPT broadcast from STX1 to STX2
(1702.5MHz) in order to allow for the continued collection of
spacecraft
health and safety information. The new configuration also includes a
schedule change that will impact the transmission of NOAA-17 GAC
(Global
Area Coverage) data and prevent the recovery of all GACs. Whereas
GAC was
previously dumped from two transmitters, it will now be dumped by
only one
transmitter. Typically, 2-3 GAC dumps occur during each of 6-8
passes per
day. The same is true going forward, but with the restriction of
delivering those dumps with only one available transmitter there may
be a
reduced number of GACs recovered.
Here is the current transmitter status:
STX1 L-Band Transmitter #1 (1698MHz) Status is Orange
STX2 L-Band Transmitter #2 (1702.5MHz) Status is Green
STX3 L-Band Transmitter #3 (1707MHz) Status is Red
STX4 S-Band Transmitter #4 (2247.5MHz) Status is Green
Impact to Products: The benefit of this configuration change is
that it
allows for continued nominal transmission of HRPT data for the
Argos Data
Collection System. Only products that rely on NOAA-17 GAC data will be
negatively impacted. The impact to Blended Total Precipitable Water
(bTPW)
will be a twice per day, 80 minute degradation of the refresh rate.
Ozone
products will also see an impact due to the lack of NOAA-17 GAC data.
Contact Information for Further Information: ESPC Operations at
ESPCOperations@noaa.gov and 301-817-3880
Web Site(s) for applicable information: N/A
This message was sent from ESPC.Notification@noaa.gov. You have
been sent
this and other notifications because you have opted in to receive it.
For
requests to unsubscribe, please contact the ESPC Help Desk
atESPCOperations@noaa.gov or (301) 817-3880. Please note: it make
take up
to two business days to process your unsubscribe request.
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Content-Type: text/html; charset=ISO-8859-1
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Update #1: =A0The Initial Impact Time has been changed
from Novemb=
er 6, 2012 at 0000 UTC to November 6, 2012 at 0250 UTC. =A0All
other detail=
s of this notification remain the same. =A0
Topic: =A0NOAA-17 Data Transmission Change
=A0
Date/Time Issued: =A0November 5, 2012 1740 UTC
=A0
Product(s) or Data Impacted: =A0NOAA-17 GAC Data &
NOAA-17=
HRPT Data
=A0
Date/Time of Initial Impact: =A0November 6, 2012 0250
UTC
=A0
Date/Time of Expected End: =A0This configuration change
is eff=
ective until further notice.
=A0
Length of Outage: =A0N/A
=A0
Details/Specifics of Change: =A0Due to the loss of
S-Band Tran=
smitter #1 (STX1) on NOAA-17, a new data transmission configuration
is bein=
g promoted. =A0The new configuration will move HRPT broadcast from
STX1 to =
STX2 (1702.5MHz) in order to allow for the continued collection
of spacecra=
ft health and safety information. =A0The new configuration also
includes a =
schedule change that will impact the transmission of NOAA-17 GAC
(Global Ar=
ea Coverage) data and prevent the recovery of all GACs. =A0Whereas
GAC was =
previously dumped from two transmitters, it will now be dumped by
only one =
transmitter. =A0Typically, 2-3 GAC dumps occur during each of 6-8
passes pe=
r day. =A0The same is true going forward, but with the restriction
of deliv=
ering those dumps with only one available transmitter there may be
a reduce=
d number of GACs recovered.=A0
=A0
Here is the current transmitter status:
STX1 =A0L-Band Transmitter #1
(1698MHz=
) =A0Status is Orange
STX2 =A0L-Band
Tran=
smitter #2 (1702.5MHz) =A0Status is Green
STX3 =A0L-Band Transmitter #3 (1707MHz) =A0Status
is Red
STX4 =A0S-Band Transmitter #4
(2247.5M=
Hz) =A0Status is Green
=A0
Impact to Products: =A0The benefit
of this =
configuration change is that it allows for continued nominal
transmission o=
f HRPT data for the Argos Data Collection System. =A0Only products
that rel=
y on NOAA-17 GAC data will be negatively impacted. =A0The impact
to Blended=
Total Precipitable Water (bTPW) will be a twice per day, 80 minute
degrada=
tion of the refresh rate. =A0 Ozone products will also see an impact
due to=
the lack of NOAA-17 GAC data.
=A0
Contact Information for Further Information: =A0ESPC
Operation=
s at ESPCOpera=
tions@noaa.gov and 301-817-3880
=A0
Web Site(s) for applicable information: =A0N/A
=A0
This message was sent from ESPC.Notification@noaa.gov. =A0You
have be=
en sent this and other notifications because you have opted in to
receive i=
t. =A0For requests to unsubscribe, please contact the ESPC Help Desk
atESPCOperations@n=
oaa.gov or (301) 817-3880. Please note: it make take up
to two b=
usiness days to process your unsubscribe request.
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