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18220 (6286 P-L)
Classification: Outer Main-belt Asteroid          SPK-ID: 2018220
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09202141955473789 5.4386e-08  
a 3.219249241795099 1.9768e-08 au
q 2.9230093566646 1.7558e-07 au
i 2.809918744513894 5.7539e-06 deg
node 322.3860098688817 8.7253e-05 deg
peri 230.3436971221803 9.0304e-05 deg
M 331.4765791539755 2.3252e-05 deg
tp 2459367.658874741342
(2021-Jun-02.15887474)
0.00013637 TDB
period 2109.74676676169
5.78
1.9433e-05
5.32e-08
d
yr
n .1706365928232108 1.5717e-09 deg/d
Q 3.515489126925598 2.1588e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1181  
   data-arc span      22087 days (60.47 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52365  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:25:20  

Additional Information
 Earth MOID = 1.92301 au 
 Jupiter MOID = 1.4597 au 
 T_jup = 3.181 
[ 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 13.94   n/a E2021B10  
diameter diameter 8.414 km 0.293 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.033   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18220 (6286 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
 6286 P-L = 1994 PV36 = 1998 FJ47 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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