Subject: ESPC Notification (TRMM Data Outage) This is a multi-part message in MIME format. --------------060607080105070801080504 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit *Details of the Outage: *We will be temporarily suspending TRMM data production from Wednesday December 31, 2008 to Friday January 02, 2008 to allow for quality assurance of data products after we implement leap second adjustments. After PPS production is complete on December. 31, we will shut down PPS production systems. Verification checks will be performed on products to assure that this year's leap second is implemented correctly with L0 and ephemeris inputs for TRMM products. We plan to resume production on Friday January 02, 2009 after our checks are complete. Real time users need to be aware that products generated starting on January 01, 2009 00:00 Universal Time (7:00 p.m. December 31, 2008 in Eastern Standard Time) are expected to have some geolocation errors of about 7 km (about1/2 a pixel in the high resolution channels). This results from our software requiring a special version of the ephemeris file to properly handle the leap second, and constraints with the automated delivery of ephemeris files to us and the TRMM Mission Operations Center (MOC). The real time geolocation error is expected to be corrected after approximately 12 hours into the new year, with the delivery of a special ephemeris file on the morning of Thursday January 01, 2009 EST from the Flight Dynamics System support. We appreciate your patience during this period. Please let us know if you have any questions. Best Regards, Helpdesk ********************************************************** * PPS Helpdesk * * NASA/GSFC Code 610.2 Greenbelt, MD 20771 * * email: helpdesk@pps-mail.nascom.nasa.gov * * Voice: 301-614-5184 FAX: 301-614-5575 * ********************************************************** *Data Affected by the Outage: *TRMM data *Date and Time of the Outage: * 12/31/2008 *Length of the Outage: * 12/31/2008, until 01/02/2009 *Contact Point for Questions: ESPC Operations OCL (Operations Crew Leader), 301-817-3880 * --------------060607080105070801080504 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Details of the Outage:

We will be temporarily suspending TRMM data production from Wednesday December 31, 2008 to
Friday January 02, 2008 to allow for quality assurance of data products after
we implement leap second adjustments.

After PPS production is complete on December. 31, we will shut down PPS production systems.
Verification checks will be performed on products to assure that this year's leap second is implemented
correctly with L0 and ephemeris inputs for TRMM products. We plan to resume production on
Friday January 02, 2009 after our checks are complete.

Real time users need to be aware that products generated starting on January 01, 2009 00:00
Universal Time (7:00 p.m. December 31, 2008 in Eastern Standard Time) are expected to have
some geolocation errors of about 7 km (about1/2 a pixel in the high resolution channels). This results
from our software requiring a special version of the ephemeris file to properly handle the leap second,
and constraints with the automated delivery of ephemeris files to us and the
TRMM Mission Operations Center (MOC). The real time geolocation error is
expected to be corrected after approximately 12 hours into the new year, with the delivery
of a special ephemeris file on the morning of Thursday January 01, 2009 EST
from the Flight Dynamics System support.

We appreciate your patience during this period.   Please let us know if you have any questions.

Best Regards,
Helpdesk

**********************************************************
*   PPS Helpdesk                    &nbs *
*   NASA/GSFC Code 610.2 Greenbelt, MD 20771            *
*   email: helpdesk@pps-mail.nascom.nasa.gov       &nbs *
*   Voice: 301-614-5184               FAX: 301-614-5575 *
**********************************************************

Data Affected by the Outage:

TRMM data

Date and Time of the Outage:

12/31/2008

Length of the Outage:

12/31/2008, until 01/02/2009

Contact Point for Questions:
ESPC Operations OCL (Operations Crew Leader), 301-817-3880

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