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4376 Shigemori (1987 FA)
Classification: Main-belt Asteroid          SPK-ID: 2004376
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1584400407030605 3.1619e-08  
a 2.231477010819681 5.8971e-09 au
q 1.877921702397467 6.9586e-08 au
i .8747088335467726 3.6851e-06 deg
node 222.2643630524792 0.00024084 deg
peri 193.3227729594647 0.00024121 deg
M 82.80117048763833 1.2624e-05 deg
tp 2458720.459381819868
(2019-Aug-24.95938182)
4.2547e-05 TDB
period 1217.550693439756
3.33
4.8264e-06
1.321e-08
d
yr
n .2956755738711365 1.1721e-09 deg/d
Q 2.585032319241894 6.8315e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2272  
   data-arc span      25563 days (69.99 yr)  
   first obs. used      1950-02-08  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4335  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:11:50  

Additional Information
 Earth MOID = .889581 au 
 Jupiter MOID = 2.74414 au 
 T_jup = 3.625 
[ 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 MPO502195  
diameter diameter 4.967 km 0.290 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.268   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

4376 Shigemori (1987 FA)          Discovered 1987-Mar-20 by Niijima and Urata at Ojima
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1987 FA = 1972 TK8 = 1975 RD2 = 1980 AK = 1982 UV5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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