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390730 (2003 JK18)
Classification: Main-belt Asteroid          SPK-ID: 2390730
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07148635847514408 9.7719e-08  
a 3.16340486162831 4.3932e-08 au
q 2.937264567687935 2.9215e-07 au
i 4.623409204041571 1.2974e-05 deg
node 233.2864192282044 7.0649e-05 deg
peri 299.2864510366048 0.00011862 deg
M 52.07067139014102 9.2859e-05 deg
tp 2458703.250405990742
(2019-Aug-07.75040599)
0.00052753 TDB
period 2055.088805011916
5.63
4.281e-05
1.172e-07
d
yr
n .175174911722568 3.6491e-09 deg/d
Q 3.389545155568685 4.7073e-08 au
  Orbit Determination Parameters
   # obs. used (total)      141  
   data-arc span      6259 days (17.14 yr)  
   first obs. used      2003-05-03  
   last obs. used      2020-06-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65347  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:38:49  

Additional Information
 Earth MOID = 1.94568 au 
 Jupiter MOID = 1.60899 au 
 T_jup = 3.195 
[ 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 16.2   n/a MPO434440  

390730 (2003 JK18)          Discovered 2003-May-03 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2003 JK18 = 2008 CT103 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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