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226807 (2004 RB217)
Classification: Main-belt Asteroid          SPK-ID: 2226807
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1792045734309565 4.1796e-08  
a 2.666645663483759 2.4185e-08 au
q 2.188770564867642 1.1314e-07 au
i 12.00360945279943 6.9094e-06 deg
node 237.8036156664521 2.8695e-05 deg
peri 56.08410460278972 3.6734e-05 deg
M 273.1716093408029 2.3846e-05 deg
tp 2459384.123890306935
(2021-Jun-18.62389031)
0.00010786 TDB
period 1590.546588068867
4.35
2.1638e-05
5.924e-08
d
yr
n .226337287257387 3.0791e-09 deg/d
Q 3.144520762099876 2.8518e-08 au
  Orbit Determination Parameters
   # obs. used (total)      347  
   data-arc span      7594 days (20.79 yr)  
   first obs. used      1999-07-13  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5766  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 10:30:32  

Additional Information
 Earth MOID = 1.19815 au 
 Jupiter MOID = 2.0808 au 
 T_jup = 3.329 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457158.5 (2015-May-16.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1787422119470699 4.1979e-08  
q 2.192327934430346 1.1385e-07 au
tp 2457790.798088241246
(2017-Feb-06.29808824)
9.9064e-05 TDB
node 237.9382806153505 2.8723e-05 deg
peri 55.44376620892565 3.6745e-05 deg
i 11.99492115100099 6.9018e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      347  
   data-arc span      7594 days (20.79 yr)  
   first obs. used      1999-07-13  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5766  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 10:30:32  

Additional Information
 Jupiter MOID = 2.0808 au 
 T_jup = 3.329 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.762243218770769E-15 -4.704438629270327E-15 -7.691631671285736E-14 2.454243826585162E-15 -4.344739488847382E-14 -9.822198942793168E-16
q -4.704438629270327E-15 1.296140671376248E-14 9.105502485937826E-13 -1.064987725821505E-15 2.306593575094321E-13 2.708690386849658E-16
tp -7.691631671285736E-14 9.105502485937826E-13 9.813735724815037E-9 -3.013379336893123E-11 2.295097994441477E-9 -1.485158853416205E-11
node 2.454243826585162E-15 -1.064987725821505E-15 -3.013379336893123E-11 8.250047435178192E-10 -8.146300743377131E-10 -8.013323516869927E-11
peri -4.344739488847382E-14 2.306593575094321E-13 2.295097994441477E-9 -8.146300743377131E-10 1.350164659561408E-9 7.516350977169714E-11
i -9.822198942793168E-16 2.708690386849658E-16 -1.485158853416205E-11 -8.013323516869927E-11 7.516350977169714E-11 4.7635171508936E-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 15.8   n/a MPO433485  

226807 (2004 RB217)          Discovered 2004-Sep-11 by LINEAR at Socorro
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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