Cassini Significant Events for 10/03/07 - 10/09/07

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Cassini Significant Events 
for 10/03/07 - 10/09/07

The most recent spacecraft telemetry was acquired on Tuesday, October 9,
from the Goldstone tracking complex. The Cassini spacecraft is in an
excellent state of health and all subsystems are operating normally.
Information on the present position and speed of the Cassini spacecraft may
be found on the "Present Position" web page located at
http://saturn.jpl.nasa.gov/operations/present-position.cfm.

Wednesday, October 3 (DOY 276):

Science activities this week included a Composite Infrared Spectrometer
(CIRS) determination of upper troposphere and tropopause temperatures with
spatial resolution of about two degrees, along with F-ring monitoring.
Science activity will be paused during the upcoming flight software upload
and checkout.

Thursday, October 4 (DOY 277):

On October 3-4, Cassini Outreach participated in Science and Technology
Education Partnership (STEP) 8 for the Riverside Department of Education.
STEP holds an annual event that brings community science and technology
companies such as Southern California Edison, Kaiser Health Foundation, and
JPL together to introduce students from Riverside schools to technical
careers. Over 5,000 students in grades K-12 attended the 2-day event.

Friday, October 5 (DOY 278):

A Solid State Power Switch (SSPS) trip occurred today on the CIRS
decontamination heater #2, while it was OFF.  The SSPS trip algorithm
cleared the trip.  SSPS trips are believed to be caused by galactic cosmic
rays and are predicted to occur at a rate of about two per year. This trip
was number 22 in 10 years of flight.

Orbit Trim Maneuver (OTM) #131 was performed today.  This is the cleanup
maneuver following the Titan 36 encounter on Oct. 2.  The main engine burn
began at 11:45 AM PDT. Telemetry immediately after the maneuver showed the
burn duration was 8.17 seconds, giving a delta-V of 1.3 m/sec. All
subsystems reported nominal performance after the maneuver.

Cassini Outreach and the Language Arts curriculum development team attended
the annual International Storytelling Festival in Jonesboro, Tennessee.

Monday, October 8 (DOY 281)

Command and Data Subsystem (CDS) V10 flight software (FSW) activities
continued this week.  Last Friday, sequence leads uplinked a mini-S34
background sequence to run for the next two weeks in support of the CDS
flight software checkout.  On Sunday, Oct. 7, at the end of part A of S34,
instruments were either put in a sleep state or powered off.  Next the V10
FSW was loaded to the online CDS-A.  Today via a string swap, CDS-A with the
V10 FSW was made prime and CDS-B was made online.  Tuesday will be a day of
no additional FSW activities as the Spacecraft Operations team observes
Cassini and monitors telemetry.

Outreach will be presenting a poster session and support the JPL outreach
booth at the week long Division of Planetary Sciences (DPS) meeting in
Orlando, FL.  For the DPS meeting, the Cassini Media Relations office
coordinated a news briefing for today where several science team members
presented the latest Iapetus results.  A second briefing will occur Thursday
where RADAR will release an update to the Titan North Polar Mosaic.  Also
presented will be a Radar image from the Oct. 2nd Titan flyby, showing lakes
on the moon's south polar region.  To see the full Iapetus news release link
to:  

http://saturn.jpl.nasa.gov/news/press-release-details.cfm?newsID=779

Tuesday, October 9 (DOY 282)

Andrew P. Ingersoll, Cassini imaging scientist from the California Institute
of Technology, has been awarded the 2007 Gerard P. Kuiper Prize by the
Division for Planetary Sciences of the American Astronomical Society in
honor of his outstanding contributions to planetary science.   The full news
release may be found at:

http://saturn.jpl.nasa.gov/news/press-release-details.cfm?newsID=781

Wrap up:

Check out the Cassini web site at http://saturn.jpl.nasa.gov for the latest
press releases and images.

The Cassini-Huygens mission is a cooperative project of NASA, the European
Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, a
division of the California Institute of Technology in Pasadena, manages the
Cassini-Huygens mission for NASA's Science Mission Directorate, Washington,
D.C.  JPL designed, developed and assembled the Cassini orbiter.


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