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3902 Yoritomo (1986 AL)
Classification: Outer Main-belt Asteroid          SPK-ID: 2003902
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06537001541831447 4.1014e-08  
a 3.225922259323209 2.0332e-08 au
q 3.015043671492967 1.3527e-07 au
i 15.55163588865333 4.732e-06 deg
node 293.6851972558148 1.5567e-05 deg
peri 354.4084479747231 3.9924e-05 deg
M 229.1300165964029 3.8466e-05 deg
tp 2459969.837353691452
(2023-Jan-25.33735369)
0.00022719 TDB
period 2116.309944617216
5.79
2.0008e-05
5.478e-08
d
yr
n .1701074083763824 1.6082e-09 deg/d
Q 3.436800847153452 2.1661e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2405  
   data-arc span      31852 days (87.21 yr)  
   first obs. used      1934-01-07  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39112  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:17:48  

Additional Information
 Earth MOID = 1.99714 au 
 Jupiter MOID = 1.76858 au 
 T_jup = 3.127 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.59   n/a E2021B10  
diameter diameter 28.402 km 0.301 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.061   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

3902 Yoritomo (1986 AL)          Discovered 1986-Jan-14 by Inoda, S. and Urata, T. at Karasuyama
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1986 AL = 1934 AB = 1984 WF1 = 1984 YG1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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