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172989 Xuliyang (2006 KW67)
Classification: Main-belt Asteroid          SPK-ID: 2172989
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .186103364447286 5.3439e-08  
a 2.343645524303545 1.6305e-08 au
q 1.907485207158832 1.3299e-07 au
i 4.603800287201127 4.1836e-06 deg
node 249.5793929345181 7.8934e-05 deg
peri 34.86993578141429 8.0629e-05 deg
M 302.0228838121002 1.5512e-05 deg
tp 2459211.552462490466
(2020-Dec-28.05246249)
5.6209e-05 TDB
period 1310.497856608212
3.59
1.3676e-05
3.744e-08
d
yr
n .2747047606256605 2.8667e-09 deg/d
Q 2.779805841448259 1.9339e-08 au
  Orbit Determination Parameters
   # obs. used (total)      201  
   data-arc span      6597 days (18.06 yr)  
   first obs. used      2002-04-05  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53739  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:22:57  

Additional Information
 Earth MOID = .893236 au 
 Jupiter MOID = 2.3712 au 
 T_jup = 3.535 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457534.5 (2016-May-26.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1860018608131621 5.3351e-08  
q 1.908676497919709 1.3277e-07 au
tp 2457899.810072737632
(2017-May-26.31007274)
5.9318e-05 TDB
node 249.6272024480224 7.8979e-05 deg
peri 34.59090139205104 8.068e-05 deg
i 4.601496566382825 4.1822e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      201  
   data-arc span      6597 days (18.06 yr)  
   first obs. used      2002-04-05  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53739  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:22:57  

Additional Information
 Jupiter MOID = 2.3712 au 
 T_jup = 3.535 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.846297618317204E-15 -7.058600987419779E-15 1.677281707713514E-12 6.087214131329151E-14 4.828519527747168E-13 -5.403826473070123E-15
q -7.058600987419779E-15 1.762813589293546E-14 -4.179288967938006E-12 -1.467059809158881E-13 -1.218748879037827E-12 1.373050115470035E-14
tp 1.677281707713514E-12 -4.179288967938006E-12 3.518657610129473E-9 7.070303958311764E-11 1.024721561267374E-9 -3.756848913472359E-12
node 6.087214131329151E-14 -1.467059809158881E-13 7.070303958311764E-11 6.237640316962126E-9 -6.195812883397093E-9 -1.281311201461568E-12
peri 4.828519527747168E-13 -1.218748879037827E-12 1.024721561267374E-9 -6.195812883397093E-9 6.509256544710989E-9 -2.508951730477162E-16
i -5.403826473070123E-15 1.373050115470035E-14 -3.756848913472359E-12 -1.281311201461568E-12 -2.508951730477162E-16 1.749118658994418E-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 17.2   n/a MPO427055  

172989 Xuliyang           Discovered 2006 May 25 by Q.-z. Ye and H.-C. Lin at Lulin.
Xu Liyang (b. 1989) is a good friend of the first discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20111210/MPCPages.arcLast Updated: 2011-12-12

[ show close-approach data ]
Alternate Designations
 2006 KW67 = 2003 SH286 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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