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226723 (2004 PL55)
Classification: Main-belt Asteroid          SPK-ID: 2226723
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1208446962559322 5.5828e-08  
a 2.743156639159693 2.2186e-08 au
q 2.411660708317996 1.4788e-07 au
i 5.900655110353057 4.6885e-06 deg
node 95.66913075504841 5.9438e-05 deg
peri 242.1370621689141 6.2841e-05 deg
M 166.7159537501032 2.1697e-05 deg
tp 2458231.990928406525
(2018-Apr-23.49092841)
9.7521e-05 TDB
period 1659.488846450484
4.54
2.0132e-05
5.512e-08
d
yr
n .2169342691094379 2.6317e-09 deg/d
Q 3.07465257000139 2.4867e-08 au
  Orbit Determination Parameters
   # obs. used (total)      376  
   data-arc span      7009 days (19.19 yr)  
   first obs. used      2000-11-24  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59534  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 05:56:50  

Additional Information
 Earth MOID = 1.40901 au 
 Jupiter MOID = 2.28234 au 
 T_jup = 3.331 
[ 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 15.8   n/a MPO470425  
diameter diameter 3.115 km 0.697 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.115   0.129 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226723 (2004 PL55)          Discovered 2004-Aug-08 by NEAT at Palomar
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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