Subject: Administrative: NOAA-17 Data Transmission Change Scheduled for
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Content-Type: text/plain; charset=ISO-8859-1
Topic: NOAA-17 Data Transmission Change
Date/Time Issued: November 5, 2012 1225 UTC
Product(s) or Data Impacted: NOAA-17 GAC Data & NOAA-17 HRPT Data
Date/Time of Initial Impact: November 6, 2012 0000 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 at
ESPCOperations@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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Topic:=A0 NOAA-17
Data Tran=
smission Change
=A0
Date/Time Issued:=A0
Novemb=
er 5, 2012 1225 UTC
=A0
Product(s) or Data
Impacted=
:=A0 NOAA-17 GAC Data & NOAA-17 HRPT Data
=A0
Date/Time of Initial
Impact=
:=A0 November 6, 2012 0000 UTC
=A0
Date/Time of Expected
End:=
=A0 This configuration change is effective until further
notice.
=A0
Length of Outage:=A0
N/A
=A0
Details/Specifics
of Change=
:=A0 Due to the loss of S-Band Transmitter #1 (STX1) on NOAA-17,
a new data=
transmission configuration is being promoted.=A0 The new configuration
wil=
l move HRPT broadcast from STX1 to STX2 (1702.5MHz) in order to allow
for t=
he continued collection of spacecraft health and safety information.=A0
The=
new configuration also includes a schedule change that will impact
the tra=
nsmission of NOAA-17 GAC (Global Area Coverage) data and prevent
the recove=
ry of all GACs.=A0 Whereas GAC was previously dumped from two
transmitters,=
it will now be dumped by only one transmitter.=A0 Typically, 2-3
GAC dumps=
occur during each of 6-8 passes per day.=A0 The same is true going
forward=
, but with the restriction of delivering those dumps with only one
availabl=
e transmitter there may be a reduced number of GACs
recovered.=A0
=A0
Here is the current
transmi=
tter status:
STX1=A0 L-Band
Transmitter =
#1 (1698MHz)=A0 Status is Orange
STX2=A0 L-Band
Transmitter =
#2 (1702.5MHz)=A0 Status is Green
STX3=A0 L-Band
Transmitter =
#3 (1707MHz)=A0 Status is Red
STX4=A0 S-Band
Transmitter =
#4 (2247.5MHz)=A0 Status is Green
=A0
Impact to Products:=A0
The =
benefit of this configuration change is that it allows for continued
nomina=
l transmission of HRPT data for the Argos Data Collection System.=A0
Only p=
roducts that rely on NOAA-17 GAC data will be negatively impacted.=A0
The i=
mpact to Blended Total Precipitable Water (bTPW) will be a twice per
day, 8=
0 minute degradation of the refresh rate.=A0 =A0Ozone products will
also se=
e an impact due to the lack of NOAA-17 GAC data.
=A0
Contact Information
for Fur=
ther Information: =A0ESPC Operations at=A0ESPCOperations@n=
oaa.gov=A0and=A0301-817-3880
=A0
Web Site(s) for
applicable =
information: =A0N/A
=A0
This message was sent from=A0ESPC.Notification@noaa.gov.=A0 You have been sent this
and oth=
er notifications because you have opted in to receive it.=A0 For
requests t=
o unsubscribe, please contact the ESPC Help Desk atESPCOpe=
rations@noaa.gov=A0or=A0(301)
817-388=
0. Please note: it make take up to two business days to process
your un=
subscribe request.
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