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JPL Small-Body Database Browser
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442561 (2012 AK15)
Classification: Main-belt Asteroid          SPK-ID: 2442561
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .05373706727442756 7.6434e-08  
a 3.163146955688013 7.4687e-08 au
q 2.993168714931305 2.2019e-07 au
i 11.94137015037045 1.0411e-05 deg
node 318.2579950266115 3.5837e-05 deg
peri 124.8733226800337 0.0001073 deg
M 129.2151712667392 9.9954e-05 deg
tp 2457862.955060803708
(2017-Apr-19.45506080)
0.00056609 TDB
period 2054.837489342171
5.63
7.2777e-05
1.993e-07
d
yr
n .1751963363853408 6.205e-09 deg/d
Q 3.33312519644472 7.8701e-08 au
  Orbit Determination Parameters
   # obs. used (total)      112  
   data-arc span      6635 days (18.17 yr)  
   first obs. used      2001-03-25  
   last obs. used      2019-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53169  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:47  

Additional Information
 Earth MOID = 2.02805 au 
 Jupiter MOID = 1.79963 au 
 T_jup = 3.168 
[ 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 15.8   n/a MPO440833  
diameter diameter 4.171 km 0.887 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

442561 (2012 AK15)          Discovered 2004-Aug-25 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 2012 AK15 = 2010 NM72 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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