PS5	Planetary magnetospheres and ionospheres
		.2	Non-magnetized planets and comets I

Convener: Sauer, K.
Co-Convener(s): Prangé, R.
Monday, 19 April 1999
Lecture Room: Vermeer Lounge
Chairperson: N.N.

14:30	MAZELLE, CH.
		The solar wind interaction with Mars after MGS observations (Solicited Paper)

15:00	VIGNES, D.; MAZELLE, C.; REME, H.; SAUVAUD, J.A.; D'USTON, C.;
		ACUNA, M.; CONNERNEY, J.E.P.; WASILEWSKI, P.; LIN, R.P.;
		MITCHELL, D.; ANDERSON, K.A.; CARLSON, C.W.; MCFADDEN, J.;
		CURTIS, D.W.; CLOUTIER, P.A.; CRIDER, D.H.; LAW, C.C.;
		BAUER, S.J.; NESS, N.F.
		Analysis of the position and shape of the Martian bow shock and
		magnetic pile-up boundary

15:15	SAUER, K.; DUBININ, E.
		Heavy ion influence on the Martian bow shock structure

15:30	GLASSMEIER, K.-H.; SCHWINGENSCHUH, K.
		Concerning aeromagnetic variations detectable at the surface of planet Mars

15:45	TROTIGNON, J.G.; GRARD, R.; LAAKSO, H.; MEYER-VERNET, N.
		Exploration of the ionosphere of planet Mars: the AIM
		experiment onboard Mars Express

16:00	FISCHER, CH.TH.; HAERENDEL, G.; BOGDANOV, A.T.
		Comet tail dynamics: analysis of observations of comet Austin
		in conjunction with results from 3D bi-ion fluid simulations

16:15	ISRAELEVICH, P.L.; GOMBOSI, T.I.; ERSHKOVICH, A.I.;
		DE ZEEUW, D.L.; NEUBAUER, F.M.; POWELL, K.G.
		Comparison of the experimental model of the comet Halley
		magnetosphere with the results of 3D numerical simulations

16:30	END OF PART I

17:00	Opening, Society Lecture & Reception

PS5	Planetary magnetospheres and ionospheres
		.2	Non-magnetized planets and comets II

Convener: Sauer, K.
Co-Convener(s): Prangé, R.
Tuesday, 20 April 1999
Lecture Room: Vermeer Lounge
Chairperson: N.N.

08:30	WEGMANN, R.; SCHMIDT, H.U.; DENNERL, K.; ENGLHAUSER, J.
		Analysis of the X-ray emission of comets

08:45	GEISWILLER, J.; KOLESNIKOVA, E.; TROTIGNON, J.G.; BEGHIN, C.
		Modelling of the frequency response of the mutual impedance
		probe of the ROSETTA mission: influence of the stationary surface
		waves on the electron temperature measurement

09:00	MIKHAILOV, YU.M.; MASLENITSIN, S.F.
		Regions and boundaries of cometary plasma environments

09:15	END OF SUB-SESSION