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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1229460471451394 3.5315e-08  
a 2.591644030120475 1.0634e-08 au
q 2.273011641009864 9.2835e-08 au
i 14.02366296530958 4.2999e-06 deg
node 161.8177921470665 1.2612e-05 deg
peri 315.0349489186202 1.924e-05 deg
M 296.3596554905818 1.4873e-05 deg
tp 2459269.896204444698
(2021-Feb-24.39620444)
6.3422e-05 TDB
period 1523.917482655029
4.17
9.3797e-06
2.568e-08
d
yr
n .2362332633475625 1.454e-09 deg/d
Q 2.910276419231085 1.1942e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2419  
   data-arc span      30217 days (82.73 yr)  
   first obs. used      1938-02-20  
   last obs. used      2020-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41709  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:12:56  

Additional Information
 Earth MOID = 1.30846 au 
 Jupiter MOID = 2.18258 au 
 T_jup = 3.367 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457243.5 (2015-Aug-09.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1213844625898169 3.5318e-08  
q 2.278090300089727 9.2712e-08 au
tp 2457745.201315623697
(2016-Dec-22.70131562)
6.2458e-05 TDB
node 161.9044824212575 1.2599e-05 deg
peri 314.873110104382 1.9421e-05 deg
i 14.02824381406511 4.3011e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2419  
   data-arc span      30217 days (82.73 yr)  
   first obs. used      1938-02-20  
   last obs. used      2020-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41709  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:12:56  

Additional Information
 Jupiter MOID = 2.18258 au 
 T_jup = 3.367 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.247378343390557E-15 -3.257656384897092E-15 7.276136514786111E-13 -6.444182068361299E-15 1.915315940050757E-13 4.307262397946751E-16
q -3.257656384897092E-15 8.595464706258879E-15 -1.798668744226875E-12 1.633468595752687E-14 -4.84504115549701E-13 -8.204026984264542E-16
tp 7.276136514786111E-13 -1.798668744226875E-12 3.900964088018287E-9 -7.14578475324841E-12 9.287523158951618E-10 -3.198720832908221E-12
node -6.444182068361299E-15 1.633468595752687E-14 -7.14578475324841E-12 1.587301251425444E-10 -1.552799816606654E-10 -5.906700461938272E-12
peri 1.915315940050757E-13 -4.84504115549701E-13 9.287523158951618E-10 -1.552799816606654E-10 3.77185492496992E-10 4.935821101231477E-12
i 4.307262397946751E-16 -8.204026984264542E-16 -3.198720832908221E-12 -5.906700461938272E-12 4.935821101231477E-12 1.849964619072246E-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. 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

[ 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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