#  MESSENGER in initial science orbit, from the end of the MOI at
#  00:59:43 UTC, 2011 March 18.  This orbit will change over four cycles,
#  but this should get things started.  The actual orbit will change from
#  periapsis of 200 km on 2011 Mar 18 (MOI) to 500 km on 2011 Jun 16 for
#  Orbital Correction Maneuver 1 (OCM-1, -2), where it will return to 200 
#  km.  The latitude of periapsis will change from approx. +65 degrees to
#  approx. +71.5 degrees in this same period, with OCM-1, -2  returning it
#  to +65 degrees.  Additional OCMs will be required about 2011 Sep 10
#  and 2011 Dec 16.

#  Sources:  McAdams, J. V., Farquhar, R. W., Taylor, A.H., & Williams,
#            B. G. (2007).  MESSENGER mission design and navigation.
#            Space Science Review  131:219-246.
#
#            NASA (2011).  MESSENGER Mercury orbit insertion press kit,
#            http://messenger.jhuapl.edu/news_room/Mercury_PK_TST_Rev7_Web.pdf


"Messenger" "Sol/Mercury"

{
	Class			"spacecraft"
	Mesh			"messenger2.3ds"
	Radius			0.006

	Beginning 2455639.70814  	# 2011 Mar 18 00:59:43 UTC
	
	EllipticalOrbit
	{
	Epoch			2455639.70814
	Period			0.5
	PericenterDistance	2639.7
	SemiMajorAxis		8799
	Eccentricity		0.7
	Inclination		82.5
	AscendingNode		315.0
	ArgOfPericenter		120
	MeanAnomaly		0
	}

}