Rules of the Road

To ensure an orderly and efficient analysis, interpretation, and
delivery of the Cassini/Huygens engineering and instrument data 
necessary for the Huygens probe entry and descent trajectory
reconstruction, the Cassini/Huygens Descent Trajectory Working
Group  (DTWG) agrees to the following set of procedures and rules:

1. 

The DTWG membership comprises the DTWG Chair and Co-Chair, the
Cassini and Huygens Project Scientists, the Huygens Operations 
Scientist, contributing Probe and Orbiter Instrument team
representatives, Interdisciplinary Scientists (IDS), and other
appointed  instrument team members. It is the responsibility of the
DTWG members to ensure that these Rules-of-the-Road are known and
observed  by their team. 

2. 

Each team member is responsible for the analysis of data from
his/her instrument or investigation. The DTWG members and their
science  team are responsible for the initial analysis,
interpretation, and publication of their experiment data. 

3. 

All DTWG members will provide the agreed upon processed data to the
DTWG for the sole purpose of probe entry and descent trajectory 
reconstruction activities. The first delivery of the agreed upon
experiment data to the DTWG will be made within two days of the
return  of the initial probe data set to the Huygens Probe
Operations Centre (target date = Sunday Jan 16). Subsequent data
deliveries will be  made according to the following schedule (all
time periods relative to the date of the return of the consolidated
probe data set to the  Huygens Probe Operations Centre):

  i. 10 days 
 ii.  6 weeks 
iii.  5 months 

4. 

The DTWG-derived trajectory data will be made available to the
Huygens Science Working Team (HSWT) and to the Project Science Group
(PSG).  The first delivery of the DTWG-derived trajectory data will
be made within two days of the receipt of the initial instrument
team data delivery  defined in 3 (above). Subsequent deliveries will
be made according to the following schedule (all time periods
relative to the date of the return  of the consolidated probe data
set to the Huygens Probe Operations Centre):

  i. 2 weeks 
 ii. 2 months 
iii. 6 months (final data product) 

5. 

The DTWG-derived trajectory data will not be published without the
specific written authorisation of the DTWG and the HSWT. However,
with  HSWT authorization the preliminary reference trajectory may be
used in oral presentations addressing early experiment results.
Proper credit  must be provided to the contributing instrument teams
and to the DTWG.

6. 

Each member of the DTWG entrusted with the reference trajectory data
is required to see that the trajectory data is not distributed
beyond  the DTWG without the written permission of the HSWT. 

7. 

Publication of the Reference entry and descent trajectory will
follow the publication plan agreed upon by the HSWT.

8. 

Conflicts that may arrive from the usage or the interpretation of
the DTWG data set will be referred to the HSWT for resolution.

DTWG Membership

- Chair and Co-Chair
- Huygens Project Scientist and Huygens Operations Scientist
- Cassini Project Scientist
- Contributing Probe and Orbiter Instrument Team Representatives 
  and Interdisciplinary  Scientists (IDS)
- Other appointed instrument team members
	


04/03/04