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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1230599596009245 3.4927e-08  
a 2.592214375473761 1.0141e-08 au
q 2.273216579151024 9.2219e-08 au
i 14.0234941473337 4.1152e-06 deg
node 161.8134643653984 1.2569e-05 deg
peri 314.9610316684827 1.8672e-05 deg
M 343.6732271084915 1.3787e-05 deg
tp 2459269.635745437477
(2021-Feb-24.13574544)		 5.8461e-05 TDB
period 1524.420565097482
4.17		 8.9456e-06
2.449e-08		 d
yr
n .2361553027047881 1.3858e-09 deg/d
Q 2.911212171796497 1.1389e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2567  
   data-arc span      30286 days (82.92 yr)  
   first obs. used      1938-02-20  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40631  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:11:37  

Additional Information
 Earth MOID = 1.30867 au 
 Jupiter MOID = 2.18138 au 
 T_jup = 3.366 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457301.5 (2015-Oct-06.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1213840415707506 3.4939e-08  
q 2.278043711187662 9.2106e-08 au
tp 2457745.240017846830
(2016-Dec-22.74001785)		 5.8462e-05 TDB
node 161.9045668766705 1.2557e-05 deg
peri 314.8842453204253 1.8849e-05 deg
i 14.02833090353181 4.1163e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      2567  
   data-arc span      30286 days (82.92 yr)  
   first obs. used      1938-02-20  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40631  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:11:37  

Additional Information
 Jupiter MOID = 2.18138 au 
 T_jup = 3.366 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.220746168574684E-15 -3.203184238205984E-15 6.156540986659899E-13 -6.809756403524434E-15 1.690295351172573E-13 -6.03553744166477E-16
q -3.203184238205984E-15 8.483595330869795E-15 -1.572105568360897E-12 1.7569296008541E-14 -4.394464878624833E-13 1.920326084142971E-15
tp 6.156540986659899E-13 -1.572105568360897E-12 3.417777337769361E-9 -5.112343591037877E-12 8.282003499650663E-10 -2.888356655077742E-12
node -6.809756403524434E-15 1.7569296008541E-14 -5.112343591037877E-12 1.576791555375409E-10 -1.538530739202502E-10 -7.096890495838325E-12
peri 1.690295351172573E-13 -4.394464878624833E-13 8.282003499650663E-10 -1.538530739202502E-10 3.552963520541224E-10 6.146085149721792E-12
i -6.03553744166477E-16 1.920326084142971E-15 -2.888356655077742E-12 -7.096890495838325E-12 6.146085149721792E-12 1.694419652814906E-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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)		 Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1926-Jun-26 14:26 00:01 Hebe 0.0453777022957368 0.0453733395967667 0.045382066473202 4.81478837817019 4.81478834971655 2424693.101105281 1.41165407108011 477.704224546275 61.015400977429 -63.8604344477697 100029.461410059 T 38 CATAB v2.0f-lin.ifort 2021-Feb-24 01:11:43 2021-Feb-24 01:11

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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