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195 Eurykleia

Classification: Main-belt Asteroid SPK-ID: 2000195

[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbit Diagram

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: MPO250191 (heliocentric ecliptic J2000)

Element	Value	Uncertainty (1-sigma)	Units
e	0.0435376	n/a
a	2.8762416	n/a	AU
q	2.7510169	n/a	AU
i	6.96679	n/a	deg
node	7.06989	n/a	deg
peri	121.89663	n/a	deg
M	228.46031	n/a	deg
t_p	2457051.5146776 (2015-Jan-29.01467760)	n/a	JED
period	1781.7077411 4.88	n/a n/a	d yr
n	0.20205334	n/a	deg/d
Q	3.0014663	n/a	AU

Orbit Determination Parameters

# obs. used (total)	1256
first obs. used	1884-??-??
last obs. used	2012-11-02
# oppositions	49
planetary ephem.	DE403
condition code	0
fit RMS	0.56
data source	MPC:mpn
producer	MPCLINUX

Additional Information

T_jup = 3.284

[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table

Parameter	Symbol	Value	Units	Sigma	Reference	Notes
absolute magnitude	H	9.01	mag	n/a	IRAS-A-FPA-3-RDR-IMPS-V6.0	IRAS observations used: 26
diameter	diameter	85.71	km	1.7	IRAS-A-FPA-3-RDR-IMPS-V6.0	IRAS observations used: 26
rotation period	rot_per	16.521	h	n/a	Asteroid Lightcurve DataBase (Rev. 2013-May-01)	Published Reference List: [Behrend, R. (2001) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Garlitz, J. (2013) Posting on CALL web site. http://www.minorplanet.info/call.html]
geometric albedo	albedo	0.0599		0.002	IRAS-A-FPA-3-RDR-IMPS-V6.0	IRAS observations used: 26
B-V	BV	.704	mag	.039	EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1	#obs=3; phase (min.=3.17, mean=3.72, max.=4.28) deg.
U-B	UB	.387	mag	.020	EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1	#obs=3; phase (min.=3.17, mean=3.72, max.=4.28) deg.
Tholen spectral type	spec_T	C		n/a	EAR-A-5-DDR-TAXONOMY-V4.0	used 7 color indices
SMASSII spectral type	spec_B	Ch		n/a	EAR-A-5-DDR-TAXONOMY-V4.0	based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

195 Eurykleia Discovered 1879-Apr-19 by Palisa, J. at Pola
Reference: DISCOVERY.DB	Last Updated: 2003-08-29

Alternate Designations

1949 QB2

[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

2013-May-22 11:34 UT
(server date/time)

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