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442564 (2012 AP18)
Classification: Main-belt Asteroid          SPK-ID: 2442564
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2038076023660291 8.0071e-08  
a 2.677522982280152 2.9345e-08 au
q 2.131823442981694 2.1998e-07 au
i 12.26277442332977 8.2382e-06 deg
node 76.51687801645906 2.8296e-05 deg
peri 306.9122662667698 3.2885e-05 deg
M 303.2889251380223 1.5861e-05 deg
tp 2458852.594642196523
(2020-Jan-04.09464220)
7.2042e-05 TDB
period 1600.288328366617
4.38
2.6309e-05
7.203e-08
d
yr
n .2249594611287611 3.6983e-09 deg/d
Q 3.22322252157861 3.5326e-08 au
  Orbit Determination Parameters
   # obs. used (total)      239  
   data-arc span      6109 days (16.73 yr)  
   first obs. used      2002-12-05  
   last obs. used      2019-08-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58124  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:47  

Additional Information
 Earth MOID = 1.16115 au 
 Jupiter MOID = 2.28108 au 
 T_jup = 3.316 
[ 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 16.4   n/a MPO450446  
diameter diameter 3.126 km 0.533 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.024   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

442564 (2012 AP18)          Discovered 2002-Dec-05 by LINEAR at Socorro
Reference: Last Updated: 2015-09-02

Alternate Designations
 2012 AP18 = 2002 XY18 = 2006 SY111 = 2010 HX51 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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