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3569 Kumon (1938 DN1)
Classification: Main-belt Asteroid          SPK-ID: 2003569
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1230599297718643 1.7001e-08  
a 2.592214375420116 9.975e-09 au
q 2.273216656427299 4.6437e-08 au
i 14.02349383062978 9.7839e-07 deg
node 161.8134552154649 3.655e-06 deg
peri 314.9610381586784 8.7585e-06 deg
M 343.6732309548149 9.1675e-06 deg
tp 2459269.635729148068
(2021-Feb-24.13572915)
3.8917e-05 TDB
period 1524.420565050161
4.17
8.7991e-06
2.409e-08
d
yr
n .2361553027121188 1.3631e-09 deg/d
Q 2.911212094412932 1.1203e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2645  
   data-arc span      30348 days (83.09 yr)  
   first obs. used      1938-02-20  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40339  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:04:07  

Additional Information
 Earth MOID = 1.30867 au 
 Jupiter MOID = 2.18138 au 
 T_jup = 3.366 
[ 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 12.52   n/a MPCxxxxx  
diameter diameter 7.700 km 0.165 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.49 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Clark, M. (2019) Minor Planet Bull. 46, 346-349.]
geometric albedo albedo 0.248   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3569 Kumon (1938 DN1)          Discovered 1938-Feb-20 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1938 DN1 = 1955 GB = 1984 DJ3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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