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129735 (1998 YU)
Classification: Main-belt Asteroid          SPK-ID: 2129735
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 .1502628362431302 3.1369e-08  
a 2.155380857413262 6.1359e-09 au
q 1.831507216594196 6.6922e-08 au
i 1.943267953297325 4.7459e-06 deg
node 310.8606099898997 9.8186e-05 deg
peri 120.7593558424305 9.9602e-05 deg
M 298.492682661232 1.5798e-05 deg
tp 2459197.973463704011
(2020-Dec-14.47346370)
5.0813e-05 TDB
period 1155.804707623555
3.16
4.9355e-06
1.351e-08
d
yr
n .3114713044733954 1.33e-09 deg/d
Q 2.479254498232329 7.0578e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1020  
   data-arc span      9024 days (24.71 yr)  
   first obs. used      1996-02-16  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55893  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:46:47  

Additional Information
 Earth MOID = .847037 au 
 Jupiter MOID = 2.77005 au 
 T_jup = 3.686 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456683.5 (2014-Jan-26.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1503216136516994 3.1422e-08  
q 1.831522488983577 6.7026e-08 au
tp 2456884.790988374528
(2014-Aug-15.29098837)
5.0319e-05 TDB
node 310.9717884248224 9.8265e-05 deg
peri 120.3934170476743 9.9668e-05 deg
i 1.94244848350004 4.7435e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1020  
   data-arc span      9024 days (24.71 yr)  
   first obs. used      1996-02-16  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55893  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:46:47  

Additional Information
 Jupiter MOID = 2.77005 au 
 T_jup = 3.686 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.873474581847228E-16 -2.099973138313413E-15 2.953351332592867E-13 -2.810727816685642E-15 7.186410148596491E-14 -9.85983665063811E-16
q -2.099973138313413E-15 4.492516353493259E-15 -6.528776677973057E-13 5.703489036217303E-15 -1.639616084392973E-13 2.071137222089217E-15
tp 2.953351332592867E-13 -6.528776677973057E-13 2.531986333915095E-9 5.130595528392688E-12 8.43795746777839E-10 -8.414426978649119E-13
node -2.810727816685642E-15 5.703489036217303E-15 5.130595528392688E-12 9.656065888695229E-9 -9.648012947206186E-9 7.966181135283835E-11
peri 7.186410148596491E-14 -1.639616084392973E-13 8.43795746777839E-10 -9.648012947206186E-9 9.933733686943435E-9 -7.984160887227848E-11
i -9.85983665063811E-16 2.071137222089217E-15 -8.414426978649119E-13 7.966181135283835E-11 -7.984160887227848E-11 2.250034654633667E-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 16.1   n/a MPO268061  

129735 (1998 YU)          Discovered 1998-Dec-16 by Kobayashi, T. at Oizumi
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

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Alternate Designations
 1998 YU = 1996 DX3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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