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18224 (6726 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2018224
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05606554548927348 3.3985e-08  
a 2.933335209344817 1.4161e-08 au
q 2.768876170730008 1.0366e-07 au
i 3.024782314432712 3.5254e-06 deg
node 118.0766806195502 6.5144e-05 deg
peri 208.7504138689984 7.2971e-05 deg
M 21.62594507122841 3.1453e-05 deg
tp 2459090.266508217443
(2020-Aug-28.76650822)
0.00016048 TDB
period 1835.020708274944
5.02
1.3288e-05
3.638e-08
d
yr
n .1961830721455055 1.4206e-09 deg/d
Q 3.097794247959627 1.4954e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1076  
   data-arc span      21991 days (60.21 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-12-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49552  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:25:26  

Additional Information
 Earth MOID = 1.75541 au 
 Jupiter MOID = 2.09648 au 
 T_jup = 3.271 
[ 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 14.91   n/a E2021B10  
diameter diameter 2.996 km 0.614 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.237   0.065 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18224 (6726 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

Alternate Designations
 6726 P-L = 1998 DC19 = 1999 LZ30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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