Workshop on Relativistic Positioning System and Gravimetry
Relativistic positioning systems: from a paradigm shift to practical applications.
The classic concept of positioning systems for a Global Navigation Satellite System (GNSS) would work ideally if all satellites and the receiver were at rest in an inertial reference frame. But at the level of precision needed by a GNSS, one has to consider curvature and relativistic inertial effects of spacetime, which are far from being negligible.
There are two very different ways of including relativity in a positioning system: one way is to keep the newtonian conception of absolute time and space, and add a number of corrections depending on the desired accuracy; another way is to use a relativistic positioning system. This is a complete change of paradigm, as the constellation of satellites is described in a general relativistic framework. With the use of satellites' interlinks, this new scheme for positioning could lead to several advantages: a very stable and accurate primary reference system, which could be used for many areas of science such as geology, gravitational wave detection or relativistic gravimetry.
Therefore the Advanced Concepts Team organizes a one-day workshop on relativistic positioning systems. Researchers are welcome to present their latest research in this field, including its applications. The list of topics can
include (but is not limited to):
- Time transfer in General Relativity
- Properties of emission coordinates
- Relativistic positioning systems
- Relativistic reference frames
- Relativistic gravimetry
Here is a list of preliminary speakers:
- Angelo Tartaglia (Politecnico di Torino)
- J.-Fernando Pascual-Sanchez (University of Valladolid)
- Joan J. Ferrando (University of Valencia)
- Andrej Čadež and Uros Kostić (University of Ljubljana)
- Marc Lachièze-Rey (CEA, Saclay) (tbc)
- Clovis de Matos (ESA)
Some time will be devoted to discussion. The workshop will be followed by a dinner. No fee is asked for the registration.
Dates and location
26 April 2010
Conference room "Einstein
ESTEC, Noordwijk, Netherlands.
Registration (deadline April 17th)
The registration for the workshop is open until April 17th. To register please send an email to or . If you want to give a presentation, put in this email the title of your talk and a short abstract.
|Time||Title & Speaker|
|09:50||Relativistic Positioning Systems - the Strategic Perspective
Clovis de Matos
|10:20||Next generation gravimetry missions
|11:20||The covariant solution to the emission system
Juan Antonio Morales
|12:00||When the satellites broadcast their proper time
|14:30||Mapping the Spacetime Metric with a Global Navigation Satellite System: Ariadna final report
|15:10||A practical method for using null bases for global positioning
|16:30||End of the Workshop|
The workshop is held at the European Space Research and Technology Centre (ESTEC), the ESA establishment in the Netherlands, in the conference room "Einstein".
European Space Research and Technology Centre
2201 AZ Noordwijk
Tel: +31 71 565 6565
Fax: +31 71 565 6040
Badges will have to be prepared by the ESTEC security at the entrance gate. In order to speed up the process, we recommend bringing with you a copy of your passport or ID card on your arrival.
How to get to ESA/ESTEC
ESTEC is located at the southern tip of Noordwijk. A map is available here.
From Den Haag (The Hague): take the A4 (direction Amsterdam) and exit at "Leiden". Follow the N206 towards Katwijk and Haarlem. Take the exit "Katwijk Noord". From there follow signs to "ESTEC" (small white squares).
From Amsterdam: take the A4 (direction Den Haag-Rotterdam) then at the junction follow the A44. Take the exit "Noordwijk-Voorhout", continue to Noordwijk and from there, follow signs to "ESTEC".
From Leiden Centraal station, take the number 33 bus to Katwijk. The bus stops in front of the ESTEC entrance gate. Please note that this bus leaves twice an hour during peak periods and only once an hour during normal hours. Journey time is approx. 30 minutes.
From Schiphol airport, either take a taxi to ESTEC (30 min), or a train to Leiden (15 min) and then the number 32 bus (see train directions above) (30 min.). By rental car, follow the "By car" instructions as above from Amsterdam.
For the Hotel accommodation, we recommend to contact the ESTEC travel office:
2201 AZ Noordwijk
Tel: +31 71 565 8030
Fax: +31 71 565 5859