POLAR Telecon Agenda for February 23, 2007
Agenda:
0. Upcoming Polar Telecon
1. Happy Birthday Polar
2. Operations
3. Polar SWT Meeting
4. Resident Archives
5. MFE Data Processing Status
6. CEPPAD Science Report
0. Upcoming Polar Telecon
Friday February 23, 2007
4 pm ET, 3 pm CT,
2 pm MT, 1 pm PT
PIs and their designated representatives will be telephoned
at their usual numbers.
Other participants may call in at: 1-800-857-7003
(Leader: John
Sigwarth)
The web site for the final agenda will be:
http://pwg.gsfc.nasa.gov/polar/telecons/2007Feb23/
Future Polar Telecons
Next telecon: Friday March 23,
2007
Future Telecon Science Discussion
Schedule
[Errors/omissions/preferences to: nicola.fox@jhuapl.edu]
March 2007: TIDE
April 2007: PIXIE
May 2007: UVI
June 2007: MDI
July 2007: CAMMICE
August 2007: VIS
September 2007: TIMAS
October 2007: EFI
November 2007: Hydra
December 2007: MFE
January 2008: CEPPAD
1. Happy Birthday
Polar
On Saturday February 26, 2007, Polar will celebrate 11 years
on orbit – going a full solar cycle. Please raise a glass of your favorite
beverage and remember what great benefits we have received from our spacecraft.
2. Operations
If you have any concerns about Polar operations, please
contact Nicky Fox (nicola.fox@jhuapl.edu)
Upcoming Polar Sun Angle maneuver
The next Polar maneuver is scheduled for February 26 - March
2. The Polar operations team has been meeting weekly to discuss this attitude
adjustment. It is planned that we will attempt to orient the spacecraft as
close to orbit normal as possible expending the remaining fuel and inert gas in
the tanks. The possible range of sun
angles is illustrated in the accompanying sun
angle figure. It is estimated that
the remaining thrust is equivalent to ~ 2 kg of fuel. If this estimate is correct, the spin axis
will be approximately 15 degrees from orbit normal. This orientation will keep the EFI antenna out
of the spacecraft shadow until August and allow 10 hours of imaging centered on
perigee. The remaining 8 hours of the
orbit will be used for science mode 2 operations.
This will extend the working life of Polar to
September. After this, the spacecraft
battery radiators will be in sunlight, causing the batteries to overheat and to
fail after an unknown amount of time.
The preliminary Polar Maneuver and Instrument Operations
Timeline for the maneuvers the week of February 26-March 2, 2007 is shown
below. Due to the uncertainty of the maneuvers, the post maneuver configuration
is TBD. It will depend on the maneuver progress. We hope to begin post maneuver
operations the week of March 5, but no later than March 12. Please be aware
that the support times are still subject to change.
POLAR Final Maneuvers February 26, 2007 - March 2,
2007
PRE-MANEUVER
054/ UVI 19:20 (close door) D46/19:10
– 20:35 SCI
Mode-1 tlm
054/ VIS 19:30 (HV off ) “ “
057/ HYDRA 13:15 (HV
off) D66/13:05 – 13:50 “
057/ TIDE 13:25 (HV off) “ “
057/ TIMAS 13:35 (HV off) “ “
057/ MAN tlm. 17:07 D46/17:20
– 22:05
S/C reconfig. 21:41
– 22:05 “
CON tlm ~22:01 “
SCI Mode-2 tlm
058/ MAN tlm. 11:47 D46/12:00
– 19:00
S/C reconfig. TBD “
CON tlm ~TBD “
059/ MAN tlm. TBD D46/10:30
– 14:05
S/C reconfig. TBD “
CON tlm ~TBD “
059/ MAN tlm. TBD D24/18:55 –
22:20
S/C reconfig. TBD “
CON tlm ~TBD “
060/ MAN tlm. TBD D66/13:20
– 16:40
S/C reconfig. TBD “
CON tlm ~TBD “
060/ MAN tlm. TBD D46/18:30
– 20:30
S/C reconfig. TBD “
CON tlm ~TBD “
061/ MAN tlm. TBD D46/13:25
– 18:55
S/C reconfig. TBD “
CON tlm ~TBD “
TBD
Unattended Weekends
The 12 hour shifts during the weekdays are still being
covered as usual and the MOC staff has a pager to cover emergencies on the
weekend.
MOC staff pager: 301-224-0386
Mike Machado should be contacted by cell phone for
instrument emergencies.
Mike's cell phone: 443-694-4317
3. Polar SWT Meeting
Based on inputs from the science teams we have decided to delay the Science Working Team meeting until mid-September. This meeting has been selected to coincide with the end of Polar operations.
Please send ideas for agenda items to Nicky (nicola.fox@jhuapl.edu)
4. Resident Archives.
We need to return to the issue of finalizing the resident
archive plans and their implementation. Previously,
we submitted the Polar
Mission Resident Archives white paper to Chuck Holmes. In
that document, the Polar Science Team had agreed previously on the following Guiding Principles to aid in the
development of the Polar resident archive environment:
1. The resident archives are to be distributed at the PI institutions or their designated locations where the expertise in handling the specific data resides.
2. The
resident archives should provide the highest available resolution (spatial and
temporal).
3. The
resident archives should be designed for minimal human support.
4. The
data in the resident archive should be available to a requestor without human
intervention.
5. The
archive should provide for virtual observatories dynamic access to the full
data set.
6. Every site should allow plots of the data,
either previously made or made on demand.
7. Every
archive should allow ASCII downloads of low and high resolution data for
re-plotting by the requestor.
8. Positional
and attitude information for the Polar spacecraft should be provided at one or
more sites.
9. Every
site should provide direct links with brief descriptions of every other Polar
site.
10.
Documented procedures for producing scientifically useful data from the
Polar instruments will be made available and will be a fundamental element of
the resident archives.
Discussion
What products need to be made available to the community [images,
survey plots, custom plots, analysis software, documentation, etc.]? What is the best method to provide these
products? Do we need to poll the broader
community for input?
As an example, see the Polar/VIS resident archive status report. For the next Polar telecon, I am asking the CEPPAD, TIDE, and TIMAS teams to report on their resident archive status. The other teams will report in succeeding telecons.
5. MFE Data Processing Status
