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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1229460470682517 3.5367e-08  
a 2.591644030077518 1.0686e-08 au
q 2.273011641171454 9.2925e-08 au
i 14.02366293327968 4.3233e-06 deg
node 161.8177921432176 1.2612e-05 deg
peri 315.03494885954 1.9297e-05 deg
M 296.3596555700615 1.499e-05 deg
tp 2459269.896204101555
(2021-Feb-24.39620410)
6.3934e-05 TDB
period 1523.917482617141
4.17
9.425e-06
2.58e-08
d
yr
n .2362332633534358 1.461e-09 deg/d
Q 2.910276418983583 1.2e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2399  
   data-arc span      30199 days (82.68 yr)  
   first obs. used      1938-02-20  
   last obs. used      2020-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41831  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:59:14  

Additional Information
 Earth MOID = 1.30846 au 
 Jupiter MOID = 2.18258 au 
 T_jup = 3.367 
[ 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 12.5   n/a MPO502187  
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. 2019-August); 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

[ show close-approach data ]
Alternate Designations
 1938 DN1 = 1955 GB = 1984 DJ3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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