EUROPLANET N3 strategic workshop on Meteor Orbit Determination (MOD)

Workshop Agenda

Monday, 11th Sept.

Welcome, introduction, requirements for orbit data

10.00 Welcome, logistics (D. Koschny)
10.15 Introduction of participants (All)
10.30 Possible use of meteor orbit data and requirements (G. Ryabova)
11.20 Meteor stream/orbit nomenclature: The need for a consensus on meteor orbit analysis techniques. (P. Jenniskens)

12.10 LUNCH

Double-station setups and software

13.30 Double station setup and software near Beijing in China (Huan Meng)
14.20 Double station setup and software in Ireland (P. Atreya)
15.10 Meteor trajectory determination using double station data from the SPOSH camera (T. Maue)

16.00 COFFEE BREAK

16.30 Double station setups and software in Modra, Slovakia (J. Toth)
17.20 Double station setups and software in Poland (P. Zoladek)
18.10 Conclusion of session

18.30 DINNER

20.00 Discussion - fun presentations if you want - singing…

Tuesday, 12th Sept.

Double-station setups and software - continued

10.00 An overview of multi-station work/instrumentation/data reduction/future plans carried out in the Werkgroep Meteoren (F.C.M. Bettonvil)
10.45 A software for orbit determination at the Werkgroep Meteoren (E. Bettonvil)
11.30 The Meteor Orbit and Trajectory Software (MOTS) and double-station observations at ESA (J. Mc Auliffe)

12.30 LUNCH

14.00 SPICE - a software library and data format for computations of geometry within the solar system (D. Koschny)
15.00 Test runs of the software. Here we want to start with one common data set and ask all of you to use your own software to produce orbits from the data. We expect that we need time to convert the input data to the correct format, then to actually run the code. I expect that not all results will be the same. We'll then spend some time on finding out why there are differences. If there are no differences we celebrate with some beer ;-)
18.00 Conclusion of session

18.30 DINNER

20.00 Discussion about orbit determination software:
We'll collect items for general discussion during the presentations. Marc de Lignie already compiled a few very relevant points:
(1) What's the best way of measuring the position of the meteor in the image? Begin point, end point, middle point - centroiding, ...
(2) What's the best way to determine the plane in which the meteor is moving from the measurements?
(3) What's the best way to determine the average and the pre-atmospheric velocity from a set of measurements along the meteor trail? Should break-up effects be dealt with?
(4) What's the best way to convert geocentric to heliocentric positions?
(5) How should the effect of gravitation on the trail curvature be dealt with?
(6) How can errors be estimated?
(7) How robust are the methods which are applied in the different codes?
(8) Two-station vs. multi-station observations. How much do we gain?,
(9) What are the most critical parameters for orbit determination. Which ones are most sensitive? Are there ways to improve the accuracy?
(10) Fisheye lenses vs. ‘standard’  optics in terms of plate reduction,

Wednesday, 13th Sept.

Archiving - methods and ideas

10.00 Introduction - Goal of the day (D. Koschny)
10.10 The Unified Meteor Database - a generic archiving project for meteor data (G. Barensten)
10.45 The IAU Orbit Database (L. Kornos)
11.15 The current IMO meteor archive (S. Molau)
11.45 Summary of requirements to an orbit database which all of us would use (D. Koschny)

12.00 LUNCH

Discussion on Archiving

13.00 Discussion on what to store, where, who would do it - in the end we should have a draft proposal on how to proceed…

18.00 DINNER

21.00 Review of archiving proposal (G. Ryabova)
22.00 ADJOURN

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