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(2015 RH2)
Classification: Apollo [NEO, PHA]          SPK-ID: 3726791
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 69 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2664338405254538 2.9564e-08  
a 1.217147594404633 4.0916e-09 au
q .892858286341089 3.3631e-08 au
i 5.356437974088111 5.6619e-06 deg
node 332.4119903193417 2.8005e-05 deg
peri 115.2745939856359 2.9335e-05 deg
M 115.8923007916328 1.1883e-05 deg
tp 2458842.606090313345
(2019-Dec-25.10609031)
1.558e-05 TDB
period 490.4709553518474
1.34
2.4732e-06
6.771e-09
d
yr
n .7339884167896306 3.7011e-09 deg/d
Q 1.541436902468176 5.1818e-09 au
  Orbit Determination Parameters
   # obs. used (total)      380  
   # delay obs. used      0  
   # Doppler obs. used      1  
   data-arc span      1700 days (4.65 yr)  
   first obs. used      2015-08-21  
   last obs. used      2020-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39906  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Apr-17 06:28:14  

Additional Information
 Earth MOID = .0111109 au 
 Jupiter MOID = 3.65022 au 
 T_jup = 5.203 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457889.5 (2017-May-16.0) TDB
Reference: JPL 69 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2664985576009624 2.9556e-08  
q .8931509627267534 3.3515e-08 au
tp 2457861.105319625546
(2017-Apr-17.60531963)
1.1315e-05 TDB
node 332.505698739739 2.7992e-05 deg
peri 115.307167031316 2.945e-05 deg
i 5.350836010595731 5.6597e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      380  
   # delay obs. used      0  
   # Doppler obs. used      1  
   data-arc span      1700 days (4.65 yr)  
   first obs. used      2015-08-21  
   last obs. used      2020-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39906  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Apr-17 06:28:14  

Additional Information
 Jupiter MOID = 3.65022 au 
 T_jup = 5.203 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.735535121603243E-16 -9.877121077012523E-16 1.539203629365739E-13 -7.023350692113055E-16 1.636195947885104E-13 2.555692028689526E-14
q -9.877121077012523E-16 1.123261331671162E-15 -1.626514346569841E-13 -5.496608373638976E-15 -1.720686779286027E-13 -3.005829216377905E-14
tp 1.539203629365739E-13 -1.626514346569841E-13 1.280358797896503E-10 -1.895246385685616E-13 1.042723486000935E-10 1.582922137496785E-11
node -7.023350692113055E-16 -5.496608373638976E-15 -1.895246385685616E-13 7.835724748910714E-10 -7.801395093776713E-10 1.052856489892546E-10
peri 1.636195947885104E-13 -1.720686779286027E-13 1.042723486000935E-10 -7.801395093776713E-10 8.673169463360576E-10 -9.242331996414546E-11
i 2.555692028689526E-14 -3.005829216377905E-14 1.582922137496785E-11 1.052856489892546E-10 -9.242331996414546E-11 3.203175009594888E-11

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 21.9   n/a MPO373589  

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