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JPL Small-Body Database Browser
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(2012 RJ15)
Classification: Apollo [NEO]          SPK-ID: 3608620
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1240328535017952 8.146e-05  
a 1.008478435881153 0.00051613 au
q .8833939777837864 0.00053423 au
i 24.772583748189 0.080453 deg
node 175.8612893641386 0.0098869 deg
peri 320.1385586731495 0.10388 deg
M 53.72971956101286 1.7376 deg
tp 2458545.290930924830
(2019-Mar-02.79093092)
1.743 TDB
period 369.9119412765909
1.01
0.28397
0.0007775
d
yr
n .9732045923081474 0.00074711 deg/d
Q 1.13356289397852 0.00058014 au
  Orbit Determination Parameters
   # obs. used (total)      41  
   data-arc span      8 days  
   first obs. used      2012-09-14  
   last obs. used      2012-09-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .54404  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:49:02  

Additional Information
 Earth MOID = .0871821 au 
 Jupiter MOID = 3.8668 au 
 T_jup = 5.953 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456187.5 (2012-Sep-17.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .123925248855164 8.6629e-05  
q .8828179345921173 0.00054283 au
tp 2456327.793725946407
(2013-Feb-04.29372595)
0.046324 TDB
node 175.9304365874693 0.012234 deg
peri 320.4545215476987 0.12847 deg
i 24.77901813924173 0.080571 deg
  Orbit Determination Parameters
   # obs. used (total)      41  
   data-arc span      8 days  
   first obs. used      2012-09-14  
   last obs. used      2012-09-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .54404  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:49:02  

Additional Information
 Jupiter MOID = 3.8668 au 
 T_jup = 5.953 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.504649494487851E-9 -4.700969633733305E-8 3.99730174857497E-6 1.058294905835211E-6 1.112604607057725E-5 -6.970128290137105E-6
q -4.700969633733305E-8 2.946604728422785E-7 -2.501168514443132E-5 -6.637898665521961E-6 -6.970702944577705E-5 4.371750120550439E-5
tp 3.99730174857497E-6 -2.501168514443132E-5 .002145938816447663 .0005617598306068247 .005934695272614008 -.003700222239803932
node 1.058294905835211E-6 -6.637898665521961E-6 .0005617598306068247 .0001496721141287488 .001569024670909177 -.0009857125816904045
peri 1.112604607057725E-5 -6.970702944577705E-5 .005934695272614008 .001569024670909177 .01650421654705572 -.01033401315297333
i -6.970128290137105E-6 4.371750120550439E-5 -.003700222239803932 -.0009857125816904045 -.01033401315297333 .006491731264101658

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 23.6   n/a MPO240066  

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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