Gaia-FUN-SSO workshop 2012



1st Announcement

Gaia-FUN-SSO 2012 Workshop

Second Workshop on the Gaia Follow-Up Network for the Solar System Objects
to be held in Paris Observatory, PARIS, France
on September 19-21, 2012


Scientific Rationale
The observation of the Solar System Objects (SSO) by the Gaia space astrometry mission will be constrained by a scanning law. Several detections of interesting objects may be done with no possibility of further observations by the probe. These objects will then require complementary ground-based observations. Among them, previously unknown Near-Earth Objects, fast moving towards the Earth or going away from it could be found. Several objects discovered by Gaia can also be Inner-Earth Objects, as the probe will observe at rather low Solar elongations. In order to confirm from the ground the discoveries made in space and to follow interesting targets, a dedicated network is organized, the Gaia Follow-Up Network. This task is performed in the frame of the Coordination Unit 4 of the Gaia Data Processing and Analysis Consortium, devoted to data processing of specific objects. The goal of the network will be to improve the knowledge of the orbit of poorly observed targets by astrometric observations on alert. This activity will be coordinated by a central node interacting with the Gaia data reduction pipeline all along the mission.

Two years after a kick-off workshop, we organize this year a second Gaia-FUN-SSO workshop in Paris in September 2012 in order to discuss further the coordination of the network of observing stations, to discuss the prelaunch training observations which have been performed. During this workshop, the participants will have the opportunity to be informed about the status of the Gaia mission, about the alert process for SSO and the ground-based data processing. But they will also be invited to present their activities in relation with this program, or their equipment, instruments and observing sites. Large time slots will be reserved for discussions.

* Status of the Gaia mission
* Gaia observation of the Solar System Objects
* Update of Gaia-FUN-SSO organization
* Observing sites participating to Gaia-FUN-SSO
* Prelaunch observing campaigns - Training alerts past and next
* Round table for discussion of the on-alert process
* Round table for the actions to perform in 2013

Scientific Organizing Committee
* W. Thuillot (co-Chair, IMCCE, France)
* P. Tanga (co-Chair, OCA,France)
* J.-E. Arlot (IMCCE, France)
* J. Berthier (IMCCE, France)
* A. Cellino (Torino obs., Italy)
* D. Hestroffer (IMCCE, France)
* F. Mignard (OCA, France)
* Zhao HaiBin (PMO, China)
* R. Teixeira (IAG-USP, São Paulo, Brazil)

The maximum number of participant is 50 due to the size of the conference room. A participation fee of 50 Euros will be paid by each participant at his arrival. A registration desk will be opened at the meeting site starting on Wednesday 19 September 9 a.m.

For the registration connect and register online on the web page:
or send an e-mail to
With the following information:
First name:...
Contributed communications: yes/no
if so, title,authors and short abstract:...

The workshop will take place at the Paris Observatory
Room: Salle de l'Atelier
77 avenue Denfert Rochereau,
75014 Paris (France)

Paris Observatory is located in the Paris downtown and several hotels and restaurants are available all around. Do not hesitate to book an hotel as soon as possible. Several addresses are given on the workshop website.

A few grants for travels or accommodation will be available on request to the SOC.

Key dates
15 March  : 1st announcement
20 May  : 2nd announcement
1 Sept.: deadline for grant requests
10 Sept. : deadline for submitting short abstracts
10 Sept. : deadline for registration
15 Sept. : 3rd annoucement - preliminary program
19-21 Sept.: workshop sessions

The proceedings of this workshop will be published by IMCCE. Every participant will receive one issue.


* Contact:

* Workshop: Further details on the workshop are available on the website at the address

* Network: candidate observing sites can register on the wiki at the address