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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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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 .1229460478800979 3.5681e-08  
a 2.591644030525021 1.0861e-08 au
q 2.273011639459922 9.352e-08 au
i 14.0236629640956 4.418e-06 deg
node 161.8177920608968 1.2617e-05 deg
peri 315.034949564498 1.951e-05 deg
M 296.3596547737291 1.5407e-05 deg
tp 2459269.896207542288
(2021-Feb-24.39620754)
6.5758e-05 TDB
period 1523.917483011846
4.17
9.58e-06
2.623e-08
d
yr
n .2362332632922498 1.4851e-09 deg/d
Q 2.91027642159012 1.2197e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2278  
   data-arc span      30112 days (82.44 yr)  
   first obs. used      1938-02-20  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42738  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:04:53  

Additional Information
 Earth MOID = 1.30846 au 
 Jupiter MOID = 2.18258 au 
 T_jup = 3.367 
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Orbital Elements at Epoch 2457191.5 (2015-Jun-18.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1214003269745791 3.5686e-08  
q 2.278049398302607 9.3399e-08 au
tp 2457745.169158040330
(2016-Dec-22.66915804)
6.4378e-05 TDB
node 161.9044794459279 1.2603e-05 deg
peri 314.8678538144277 1.9696e-05 deg
i 14.02823215398022 4.4193e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2278  
   data-arc span      30112 days (82.44 yr)  
   first obs. used      1938-02-20  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42738  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:04:53  

Additional Information
 Jupiter MOID = 2.18258 au 
 T_jup = 3.367 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.273493828721095E-15 -3.315415543751986E-15 8.064164749841514E-13 -6.793150400744851E-15 2.080329028979334E-13 7.550636499015765E-16
q -3.315415543751986E-15 8.723358107848189E-15 -1.971840718542E-12 1.71048745636822E-14 -5.207539293555726E-13 -1.622599235373551E-15
tp 8.064164749841514E-13 -1.971840718542E-12 4.144571737610341E-9 -8.129452282935226E-12 9.796389499485771E-10 -3.15947831472776E-12
node -6.793150400744851E-15 1.71048745636822E-14 -8.129452282935226E-12 1.588479330306536E-10 -1.555941148907167E-10 -6.138128226442653E-12
peri 2.080329028979334E-13 -5.207539293555726E-13 9.796389499485771E-10 -1.555941148907167E-10 3.879156440778086E-10 5.160075365339812E-12
i 7.550636499015765E-16 -1.622599235373551E-15 -3.15947831472776E-12 -6.138128226442653E-12 5.160075365339812E-12 1.95302501020346E-11

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

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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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