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21379 (1998 DU13)
Classification: Main-belt Asteroid          SPK-ID: 2021379
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04734299211536776 4.0935e-08  
a 2.338562015991954 1.0312e-08 au
q 2.227847492907548 9.6714e-08 au
i 6.992660008851076 4.7473e-06 deg
node 3.636624893735767 3.2637e-05 deg
peri 134.4941666898459 5.9923e-05 deg
M 172.123551205867 4.8881e-05 deg
tp 2458575.961003739499
(2019-Apr-02.46100374)		 0.00017714 TDB
period 1306.236346383937
3.58		 8.6401e-06
2.366e-08		 d
yr
n .2756009668515123 1.823e-09 deg/d
Q 2.44927653907636 1.08e-08 au
   Orbit Determination Parameters
   # obs. used (total)      733  
   data-arc span      21816 days (59.73 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-06-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54273  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:44:18  

Additional Information
 Earth MOID = 1.24513 au 
 Jupiter MOID = 2.53905 au 
 T_jup = 3.554 
[ 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 15.99   n/a E2021B10  

21379 (1998 DU13)          Discovered 1998-Feb-27 by ODAS at Caussols
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1998 DU13 = 6681 P-L 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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