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186638 (2003 JJ4)
Classification: Inner Main-belt Asteroid          SPK-ID: 2186638
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08132747814447723 5.8948e-08  
a 1.879501916210323 7.8026e-09 au
q 1.726646765197225 1.1342e-07 au
i 19.80795785108388 5.9969e-06 deg
node 217.0260599885239 1.1565e-05 deg
peri 200.0182680379347 3.7172e-05 deg
M 107.6935264992599 3.894e-05 deg
tp 2458918.953791104056
(2020-Mar-10.45379110)
0.00010099 TDB
period 941.1581039017825
2.58
5.8607e-06
1.605e-08
d
yr
n .3825074644818326 2.3819e-09 deg/d
Q 2.032357067223421 8.4372e-09 au
  Orbit Determination Parameters
   # obs. used (total)      502  
   data-arc span      7232 days (19.80 yr)  
   first obs. used      2001-07-13  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57159  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:14:22  

Additional Information
 Earth MOID = .739924 au 
 Jupiter MOID = 3.22252 au 
 T_jup = 3.896 
[ 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 17.0   n/a MPO320881  

186638 (2003 JJ4)          Discovered 2003-May-02 by Spacewatch at Kitt Peak
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

Alternate Designations
 2003 JJ4 = 2005 AG19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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