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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1205546971284829 5.7205e-08  
a 2.743501824850531 2.2788e-08 au
q 2.412759793284235 1.5295e-07 au
i 5.90061861809112 4.7706e-06 deg
node 95.66954864536386 6.6211e-05 deg
peri 242.1232853931192 6.9933e-05 deg
M 79.99308785724489 2.2701e-05 deg
tp 2458231.686960081718
(2018-Apr-23.18696008)
0.000104 TDB
period 1659.802089494618
4.54
2.068e-05
5.662e-08
d
yr
n .2168933285953472 2.7023e-09 deg/d
Q 3.074243856416826 2.5535e-08 au
  Orbit Determination Parameters
   # obs. used (total)      310  
   data-arc span      6612 days (18.10 yr)  
   first obs. used      2000-11-24  
   last obs. used      2019-01-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63122  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 18:42:53  

Additional Information
 Earth MOID = 1.4092 au 
 Jupiter MOID = 2.27991 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 15.7   n/a MPO418209  
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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