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13146 Yuriko (1995 DR2)
Classification: Main-belt Asteroid          SPK-ID: 2013146
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09461921705752922 4.3791e-08  
a 3.182096989099791 2.0981e-08 au
q 2.881009463390048 1.373e-07 au
i 8.915485233348077 3.7274e-06 deg
node 73.80256405847949 3.3269e-05 deg
peri 145.1740183735345 3.9969e-05 deg
M 109.4449437389125 2.3413e-05 deg
tp 2458370.179042192302
(2018-Sep-08.67904219)
0.00013334 TDB
period 2073.330544644363
5.68
2.0506e-05
5.614e-08
d
yr
n .1736336740564204 1.7173e-09 deg/d
Q 3.483184514809535 2.2966e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1853  
   data-arc span      9401 days (25.74 yr)  
   first obs. used      1995-02-20  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44728  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:51:57  

Additional Information
 Earth MOID = 1.87774 au 
 Jupiter MOID = 1.52236 au 
 T_jup = 3.173 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457396.5 (2016-Jan-09.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09284128046331637 4.3786e-08  
q 2.888471340600585 1.3671e-07 au
tp 2458378.051268901054
(2018-Sep-16.55126890)
0.00013692 TDB
node 73.83708996573593 3.3263e-05 deg
peri 146.7385281068877 4.0305e-05 deg
i 8.915373126800166 3.731e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1853  
   data-arc span      9401 days (25.74 yr)  
   first obs. used      1995-02-20  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44728  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:51:57  

Additional Information
 Jupiter MOID = 1.52236 au 
 T_jup = 3.173 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.917241054700189E-15 -5.930460823045641E-15 -2.173092671159564E-12 -4.640406585395476E-15 -4.070552039811218E-13 1.606733785240942E-15
q -5.930460823045641E-15 1.868978221708801E-14 7.366459868457441E-12 1.275162658540978E-14 1.338442196303361E-12 -4.415288904047922E-15
tp -2.173092671159564E-12 7.366459868457441E-12 1.874817561519775E-8 7.570305579551866E-12 3.160622361619773E-9 -4.258861091924817E-12
node -4.640406585395476E-15 1.275162658540978E-14 7.570305579551866E-12 1.106414446622162E-9 -1.091491020328173E-9 -3.942606832592132E-11
peri -4.070552039811218E-13 1.338442196303361E-12 3.160622361619773E-9 -1.091491020328173E-9 1.624525965585336E-9 3.815658007966269E-11
i 1.606733785240942E-15 -4.415288904047922E-15 -4.258861091924817E-12 -3.942606832592132E-11 3.815658007966269E-11 1.392064377163086E-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 12.9   n/a MPO435826  

13146 Yuriko           Discovered 1995 Feb. 20 by T. Okuni at Nanyo.
Yuriko Okuni (b. 1934) is the wife of the discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010509/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 1995 DR2 = 1998 UH27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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