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123898 (2001 DU61)
Classification: Main-belt Asteroid          SPK-ID: 2123898
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1482822393397167 5.0443e-08  
a 2.762942952268645 1.8092e-08 au
q 2.353247584138363 1.3271e-07 au
i 8.356402708071071 4.1257e-06 deg
node 164.0893281062543 3.4048e-05 deg
peri 27.7939174301925 3.72e-05 deg
M 37.86592237771673 1.4501e-05 deg
tp 2458824.057849127632
(2019-Dec-06.55784913)
6.7337e-05 TDB
period 1677.475955304663
4.59
1.6476e-05
4.511e-08
d
yr
n .2146081431817703 2.1079e-09 deg/d
Q 3.172638320398928 2.0774e-08 au
  Orbit Determination Parameters
   # obs. used (total)      760  
   data-arc span      7078 days (19.38 yr)  
   first obs. used      2001-01-31  
   last obs. used      2020-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56195  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 02:04:06  

Additional Information
 Earth MOID = 1.35758 au 
 Jupiter MOID = 1.78986 au 
 T_jup = 3.309 
[ 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 14.9   n/a MPO338123  
diameter diameter 6.457 km 0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

123898 (2001 DU61)          Discovered 2001-Feb-19 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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