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JPL Small-Body Database Browser
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442028 (2010 PA4)
Classification: Main-belt Asteroid          SPK-ID: 2442028
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1979164277490181 9.1922e-08  
a 3.188243111146353 9.8613e-08 au
q 2.557237423792852 3.0869e-07 au
i 14.21771841571775 1.0984e-05 deg
node 303.4854453412142 3.1315e-05 deg
peri 348.5143742383695 3.8872e-05 deg
M 328.1317728141346 2.7441e-05 deg
tp 2459184.569136775710
(2020-Dec-01.06913678)
0.00016334 TDB
period 2079.340305087513
5.69
9.6471e-05
2.641e-07
d
yr
n .1731318337451496 8.0325e-09 deg/d
Q 3.819248798499856 1.1813e-07 au
  Orbit Determination Parameters
   # obs. used (total)      196  
   data-arc span      4484 days (12.28 yr)  
   first obs. used      2006-12-27  
   last obs. used      2019-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52445  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:43:06  

Additional Information
 Earth MOID = 1.54283 au 
 Jupiter MOID = 1.42953 au 
 T_jup = 3.120 
[ 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 15.5   n/a MPO397577  
diameter diameter 4.904 km 0.398 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

442028 (2010 PA4)          Discovered 2006-Dec-27 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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