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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07364018853285904 3.218e-08  
a 2.376022071385347 7.7472e-09 au
q 2.201051358090296 7.8155e-08 au
i 2.603754055420143 3.4822e-06 deg
node 227.7719187057506 7.6487e-05 deg
peri 335.0184069107812 8.047e-05 deg
M 11.32625789782317 2.669e-05 deg
tp 2458958.412020405954
(2020-Apr-18.91202041)
9.9123e-05 TDB
period 1337.747452913701
3.66
6.5427e-06
1.791e-08
d
yr
n .2691090902216981 1.3162e-09 deg/d
Q 2.550992784680398 8.3177e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2489  
   data-arc span      11974 days (32.78 yr)  
   first obs. used      1987-03-27  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45787  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 19:32:09  

Additional Information
 Earth MOID = 1.19749 au 
 Jupiter MOID = 2.41064 au 
 T_jup = 3.536 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456596.5 (2013-Oct-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07409786064737427 3.2092e-08  
q 2.200475997574871 7.8005e-08 au
tp 2456283.307251745938
(2012-Dec-21.80725175)
9.6032e-05 TDB
node 227.8464115852513 7.6557e-05 deg
peri 335.2287020415391 8.0514e-05 deg
i 2.602009863635892 3.4811e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2489  
   data-arc span      11974 days (32.78 yr)  
   first obs. used      1987-03-27  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45787  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 19:32:09  

Additional Information
 Jupiter MOID = 2.41064 au 
 T_jup = 3.536 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.029879661120805E-15 -2.493051436966951E-15 -2.897383861362492E-13 1.283699793456297E-16 -6.631692626152941E-14 -2.378353894989319E-16
q -2.493051436966951E-15 6.084810574105949E-15 7.888872008520656E-13 8.197913117627486E-17 1.848852161434638E-13 6.062788820747525E-16
tp -2.897383861362492E-13 7.888872008520656E-13 9.222180577243814E-9 9.80015546783437E-12 2.406303682988496E-9 1.676499904322953E-13
node 1.283699793456297E-16 8.197913117627486E-17 9.80015546783437E-12 5.861010688210823E-9 -5.85197783384348E-9 -3.455536745361649E-13
peri -6.631692626152941E-14 1.848852161434638E-13 2.406303682988496E-9 -5.85197783384348E-9 6.482498579578572E-9 3.832293317207085E-13
i -2.378353894989319E-16 6.062788820747525E-16 1.676499904322953E-13 -3.455536745361649E-13 3.832293317207085E-13 1.21177495289734E-11

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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