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4377 Koremori (1987 GD)

Classification: Main-belt Asteroid SPK-ID: 2004377

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Orbit Diagram

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Note: This Java-based orbit viewer will eventually be retired.

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 two-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.

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)

Element	Value	Uncertainty (1-sigma)	Units
e	.07364018666391857	3.1813e-08
a	2.376022072370201	6.6561e-09	au
q	2.201051363443268	7.6683e-08	au
i	2.603751878983798	3.3256e-06	deg
node	227.7718404234606	6.722e-05	deg
peri	335.0184888941066	7.0196e-05	deg
M	11.3262533869093	1.9899e-05	deg
t_p	2458958.412037142185 (2020-Apr-18.91203714)	7.396e-05	TDB
period	1337.747453745439 3.66	5.6213e-06 1.539e-08	d yr
n	.2691090900543808	1.1308e-09	deg/d
Q	2.550992781297133	7.1463e-09	au

Orbit Determination Parameters

# obs. used (total)	2743
data-arc span	12085 days (33.09 yr)
first obs. used	1987-03-27
last obs. used	2020-04-27
planetary ephem.	DE431
SB-pert. ephem.	SB431-N16
condition code	0
norm. resid. RMS	.44233
source	ORB
producer	Otto Matic
solution date	2020-May-20 02:06:59

Additional Information

Earth MOID = 1.19749 au

Jupiter MOID = 2.41064 au

T_jup = 3.536

[ show covariance matrix ]

Physical Parameter Table

Parameter	Symbol	Value	Units	Sigma	Reference	Notes
absolute magnitude	H	13.5		n/a	MPO365300
diameter	diameter	9.520	km	0.159	urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
rotation period	rot_per	11.107	h	n/a	LCDB (Rev. 2019-August); Warner et al., 2009	Published Reference List: [Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo	albedo	0.075		0.010	urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)

4377 Koremori (1987 GD) Discovered 1987-Apr-04 by Niijima and Urata at Ojima
Reference: DISCOVERY.DB	Last Updated: 2003-08-29

Alternate Designations

1987 GD = 1976 GC6 = 1988 SF1

2020-Jun-01 20:39 UT
(server date/time)

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