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245926 (2006 RU18)
Classification: Main-belt Asteroid          SPK-ID: 2245926
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2797732588417305 4.7001e-08  
a 3.155006288338445 2.448e-08 au
q 2.272319897383845 1.4772e-07 au
i 14.99024773806613 6.2249e-06 deg
node 217.8192485192762 2.0607e-05 deg
peri 186.0991076321879 2.3603e-05 deg
M 137.9547433094569 1.2809e-05 deg
tp 2458216.108448496067
(2018-Apr-07.60844850)
6.6579e-05 TDB
period 2046.91010810687
5.60
2.3823e-05
6.522e-08
d
yr
n .175874845980879 2.047e-09 deg/d
Q 4.037692679293044 3.1329e-08 au
  Orbit Determination Parameters
   # obs. used (total)      431  
   data-arc span      8960 days (24.53 yr)  
   first obs. used      1995-10-15  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5654  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:09:52  

Additional Information
 Earth MOID = 1.28168 au 
 Jupiter MOID = 1.38367 au 
 T_jup = 3.094 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457193.5 (2015-Jun-20.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2797740404656515 4.6958e-08  
q 2.272297253810619 1.4746e-07 au
tp 2458216.918224275014
(2018-Apr-08.41822428)
6.6545e-05 TDB
node 217.843192876939 2.0605e-05 deg
peri 186.3692665411074 2.3605e-05 deg
i 14.99116744474276 6.2249e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      431  
   data-arc span      8960 days (24.53 yr)  
   first obs. used      1995-10-15  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5654  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:09:52  

Additional Information
 Jupiter MOID = 1.38367 au 
 T_jup = 3.094 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.205052733417766E-15 -6.876109377150566E-15 -3.288149489917527E-13 1.674615476721289E-14 -9.599234789352556E-14 -8.97531435525635E-15
q -6.876109377150566E-15 2.174521381011106E-14 1.784814097776215E-12 -4.738894977166077E-14 3.950258364622626E-13 2.891235565693828E-14
tp -3.288149489917527E-13 1.784814097776215E-12 4.428170586590637E-9 2.534162719308579E-11 7.797671160943015E-10 2.346315599478799E-12
node 1.674615476721289E-14 -4.738894977166077E-14 2.534162719308579E-11 4.245579466547612E-10 -4.049535620420279E-10 -2.615463447366491E-11
peri -9.599234789352556E-14 3.950258364622626E-13 7.797671160943015E-10 -4.049535620420279E-10 5.572183778038841E-10 2.561721988015011E-11
i -8.97531435525635E-15 2.891235565693828E-14 2.346315599478799E-12 -2.615463447366491E-11 2.561721988015011E-11 3.87492442965631E-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 15.2   n/a MPO433611  

245926 (2006 RU18)          Discovered 2006-Sep-14 by NEAT at Palomar
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

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