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413056 (2001 RA87)
Classification: Main-belt Asteroid          SPK-ID: 2413056
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3250914672157409 7.8334e-08  
a 2.628030839304146 1.1425e-08 au
q 1.773680437866546 2.0607e-07 au
i 2.800074453142318 7.1978e-06 deg
node 311.1822417105535 0.00025483 deg
peri .3714574898657687 0.00025521 deg
M 167.9841596740866 1.7312e-05 deg
tp 2458274.377418170674
(2018-Jun-04.87741817)
7.4436e-05 TDB
period 1556.123684314752
4.26
1.0147e-05
2.778e-08
d
yr
n .2313440786414918 1.5086e-09 deg/d
Q 3.482381240741745 1.5139e-08 au
  Orbit Determination Parameters
   # obs. used (total)      259  
   data-arc span      6338 days (17.35 yr)  
   first obs. used      2001-08-27  
   last obs. used      2019-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57278  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:43:31  

Additional Information
 Earth MOID = .759434 au 
 Jupiter MOID = 1.81875 au 
 T_jup = 3.322 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457065.5 (2015-Feb-12.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3273384149268494 7.8797e-08  
q 1.765648527823292 2.0758e-07 au
tp 2456719.365304345221
(2014-Mar-02.86530435)
7.3703e-05 TDB
node 311.3583898532175 0.0002539 deg
peri .1853012339196619 0.00025428 deg
i 2.808294863590039 7.22e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      259  
   data-arc span      6338 days (17.35 yr)  
   first obs. used      2001-08-27  
   last obs. used      2019-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57278  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:43:31  

Additional Information
 Jupiter MOID = 1.81875 au 
 T_jup = 3.322 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.208903289866674E-15 -1.63458243733909E-14 3.7759208508402E-12 2.778888563266828E-13 4.420571252082291E-13 -9.190789659326428E-15
q -1.63458243733909E-14 4.309147035017785E-14 -1.00062107754292E-11 -7.520424062162103E-13 -1.160947425777796E-12 2.424086554896774E-14
tp 3.7759208508402E-12 -1.00062107754292E-11 5.432193046606825E-9 2.043669268841895E-10 1.245202592577851E-9 -1.208546560055085E-11
node 2.778888563266828E-13 -7.520424062162103E-13 2.043669268841895E-10 6.446749418531025E-8 -6.434560295098475E-8 1.177941186083954E-9
peri 4.420571252082291E-13 -1.160947425777796E-12 1.245202592577851E-9 -6.434560295098475E-8 6.465877011284302E-8 -1.179741151608983E-9
i -9.190789659326428E-15 2.424086554896774E-14 -1.208546560055085E-11 1.177941186083954E-9 -1.179741151608983E-9 5.212862500566987E-11

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 16.9   n/a MPO455940  

413056 (2001 RA87)          Discovered 2001-Aug-27 by LONEOS at Anderson Mesa
Reference: Last Updated: 2014-11-10

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