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18204 (3065 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2018204
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1278829278576809 4.6297e-08  
a 2.702679663824005 1.453e-08 au
q 2.357053075352779 1.2341e-07 au
i 5.589233033670237 4.0444e-06 deg
node 261.4870499456138 4.921e-05 deg
peri 46.530381411959 5.2177e-05 deg
M 203.3552596600743 2.0485e-05 deg
tp 2459706.660797414957
(2022-May-07.16079741)
9.5433e-05 TDB
period 1622.894496921639
4.44
1.3087e-05
3.583e-08
d
yr
n .2218258800451047 1.7889e-09 deg/d
Q 3.048306252295232 1.6388e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1040  
   data-arc span      21780 days (59.63 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54974  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:16:20  

Additional Information
 Earth MOID = 1.34636 au 
 Jupiter MOID = 2.18039 au 
 T_jup = 3.348 
[ 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 14.8   n/a MPO492949  

18204 (3065 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 3065 P-L = 1999 JL43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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