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21124 (1992 YR2)
Classification: Main-belt Asteroid          SPK-ID: 2021124
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06201872789471882 3.1501e-08  
a 2.373913962937132 7.5836e-09 au
q 2.226686838824261 7.2758e-08 au
i 5.142171381565966 3.193e-06 deg
node 69.09025365245512 3.8042e-05 deg
peri 169.541987934663 4.7025e-05 deg
M 146.40132128584 2.7462e-05 deg
tp 2458853.201651680998
(2020-Jan-04.70165168)		 0.00010191 TDB
period 1335.967487704347
3.66		 6.4017e-06
1.753e-08		 d
yr
n .2694676354876002 1.2912e-09 deg/d
Q 2.521141087050004 8.0539e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1900  
   data-arc span      10165 days (27.83 yr)  
   first obs. used      1992-12-18  
   last obs. used      2020-10-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50966  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:40:04  

Additional Information
 Earth MOID = 1.21465 au 
 Jupiter MOID = 2.46386 au 
 T_jup = 3.535 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6   n/a MPO384935  

21124 (1992 YR2)          Discovered 1992-Dec-18 by Elst, E. W. at Caussols
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1992 YR2 = 1998 MW31 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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