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JPL Small-Body Database Browser
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487751 (2015 RK122)
Classification: Main-belt Asteroid          SPK-ID: 2487751
[ 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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .132519990297308 7.7898e-08  
a 2.811556150886407 4.7753e-08 au
q 2.438968757050604 2.2475e-07 au
i 9.26423257313869 7.3776e-06 deg
node 94.64464860813237 6.396e-05 deg
peri 299.6410761085454 8.5097e-05 deg
M 242.7837525659606 5.3707e-05 deg
tp 2459161.165563197666
(2020-Nov-07.66556320)		 0.00026177 TDB
period 1721.942198027967
4.71		 4.3869e-05
1.201e-07		 d
yr
n .2090662511275266 5.3263e-09 deg/d
Q 3.184143544722211 5.4081e-08 au
   Orbit Determination Parameters
   # obs. used (total)      104  
   data-arc span      6032 days (16.51 yr)  
   first obs. used      2001-10-15  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65061  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 07:09:23  

Additional Information
 Earth MOID = 1.46167 au 
 Jupiter MOID = 2.24835 au 
 T_jup = 3.289 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457195.5 (2015-Jun-22.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1350217966494981 7.9754e-08  
q 2.429247016440526 2.3165e-07 au
tp 2457436.980703989785
(2016-Feb-18.48070399)		 0.0002379 TDB
node 94.75684708504954 6.4197e-05 deg
peri 298.8781928210049 8.3953e-05 deg
i 9.252246573639372 7.3638e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      104  
   data-arc span      6032 days (16.51 yr)  
   first obs. used      2001-10-15  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65061  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 07:09:23  

Additional Information
 Jupiter MOID = 2.24835 au 
 T_jup = 3.289 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.360639831730317E-15 -1.818905261715567E-14 -1.211763707489724E-11 -7.269471424976335E-14 -2.787867419927067E-12 -3.311508618285948E-14
q -1.818905261715567E-14 5.365998042286681E-14 3.660535564338923E-11 2.22281166805069E-13 8.351302888184421E-12 1.006603948527067E-13
tp -1.211763707489724E-11 3.660535564338923E-11 5.659764861865716E-8 3.160220439407098E-10 1.30350750369776E-8 1.092487299575428E-10
node -7.269471424976335E-14 2.22281166805069E-13 3.160220439407098E-10 4.121233078269251E-9 -3.992557890982298E-9 1.874678253910777E-10
peri -2.787867419927067E-12 8.351302888184421E-12 1.30350750369776E-8 -3.992557890982298E-9 7.048174443630885E-9 -1.596352202930488E-10
i -3.311508618285948E-14 1.006603948527067E-13 1.092487299575428E-10 1.874678253910777E-10 -1.596352202930488E-10 5.42261916832818E-11

[ 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 MPO450510  

487751 (2015 RK122)          Discovered 2015-May-30 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2017-03-14
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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