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226818 (2004 RM245)
Classification: Main-belt Asteroid          SPK-ID: 2226818
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04476898240010351 7.2896e-08  
a 2.768463529472569 2.8621e-08 au
q 2.644522234446284 2.0108e-07 au
i 6.365296417179789 9.2958e-06 deg
node 10.17774209108923 5.1831e-05 deg
peri 24.74893346939177 9.6685e-05 deg
M 23.43439267532055 8.1875e-05 deg
tp 2458490.976367591463
(2019-Jan-07.47636759)
0.00038252 TDB
period 1682.506059079418
4.61
2.6091e-05
7.143e-08
d
yr
n .2139665400057898 3.318e-09 deg/d
Q 2.892404824498855 2.9902e-08 au
  Orbit Determination Parameters
   # obs. used (total)      157  
   data-arc span      8432 days (23.09 yr)  
   first obs. used      1995-09-17  
   last obs. used      2018-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62214  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 04:00:46  

Additional Information
 Earth MOID = 1.65042 au 
 Jupiter MOID = 2.29565 au 
 T_jup = 3.328 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456656.5 (2013-Dec-30.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0425985535212053 7.3172e-08  
q 2.649866991572209 2.0142e-07 au
tp 2456800.439738017988
(2014-May-22.93973802)
0.00039758 TDB
node 10.22363006992052 5.1885e-05 deg
peri 23.04442277269604 9.9597e-05 deg
i 6.363548568752782 9.2915e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      157  
   data-arc span      8432 days (23.09 yr)  
   first obs. used      1995-09-17  
   last obs. used      2018-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62214  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 04:00:46  

Additional Information
 Jupiter MOID = 2.29565 au 
 T_jup = 3.328 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.354177237488027E-15 -1.460189649567016E-14 -1.470585655073126E-11 8.035634099211218E-15 -3.169624273622426E-12 4.720502757232798E-16
q -1.460189649567016E-14 4.056887596285251E-14 4.081461052114239E-11 -2.133052026338436E-14 8.780268428978403E-12 2.606064824932691E-16
tp -1.470585655073126E-11 4.081461052114239E-11 1.580662011515908E-7 -1.882221016549188E-11 3.382800009011037E-8 -3.04991839954386E-12
node 8.035634099211218E-15 -2.133052026338436E-14 -1.882221016549188E-11 2.692061392826843E-9 -2.67880125088611E-9 -1.463309768277374E-10
peri -3.169624273622426E-12 8.780268428978403E-12 3.382800009011037E-8 -2.67880125088611E-9 9.919620144329924E-9 1.446675342538438E-10
i 4.720502757232798E-16 2.606064824932691E-16 -3.04991839954386E-12 -1.463309768277374E-10 1.446675342538438E-10 8.633128237264032E-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 16.7   n/a MPO454629  

226818 (2004 RM245)          Discovered 2004-Sep-10 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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