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181875 (1999 JC131)
Classification: Main-belt Asteroid          SPK-ID: 2181875
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07545257368760167 4.0885e-08  
a 2.276844764803767 1.1007e-08 au
q 2.10505096741218 9.1228e-08 au
i 5.726817859238679 3.9422e-06 deg
node 68.06449577954916 4.0762e-05 deg
peri 116.615876776389 4.804e-05 deg
M 146.4427276889356 2.4985e-05 deg
tp 2458690.037470911732
(2019-Jul-25.53747091)
8.688e-05 TDB
period 1254.869486329985
3.44
9.0997e-06
2.491e-08
d
yr
n .2868824239665456 2.0803e-09 deg/d
Q 2.448638562195354 1.1838e-08 au
  Orbit Determination Parameters
   # obs. used (total)      566  
   data-arc span      10869 days (29.76 yr)  
   first obs. used      1990-11-19  
   last obs. used      2020-08-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59794  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:32:25  

Additional Information
 Earth MOID = 1.11218 au 
 Jupiter MOID = 2.51532 au 
 T_jup = 3.598 
[ 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 16.45   n/a E2021B55  

181875 (1999 JC131)          Discovered 1999-May-13 by LINEAR at Socorro
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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