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4377 Koremori (1987 GD)
Classification: Main-belt Asteroid          SPK-ID: 2004377
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer 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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0736401890034226 3.2143e-08  
a 2.376022070635715 7.4415e-09 au
q 2.201051356277798 7.795e-08 au
i 2.603753511665571 3.4109e-06 deg
node 227.7719091218904 7.5445e-05 deg
peri 335.0184135514877 7.9063e-05 deg
M 11.32626138444113 2.4815e-05 deg
tp 2458958.412007469721
(2020-Apr-18.91200747)
9.2172e-05 TDB
period 1337.747452280615
3.66
6.2846e-06
1.721e-08
d
yr
n .2691090903490534 1.2642e-09 deg/d
Q 2.550992784993633 7.9895e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2558  
   data-arc span      12001 days (32.86 yr)  
   first obs. used      1987-03-27  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45284  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:11:50  

Additional Information
 Earth MOID = 1.19749 au 
 Jupiter MOID = 2.41064 au 
 T_jup = 3.536 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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.DBLast Updated: 2003-08-29

Alternate Designations
 1987 GD = 1976 GC6 = 1988 SF1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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