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173902 (2001 UN163)
Classification: Main-belt Asteroid          SPK-ID: 2173902
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0906425877348805 4.4665e-08  
a 3.060954043527605 3.114e-08 au
q 2.783501248084717 1.4036e-07 au
i 8.579660013492967 6.1081e-06 deg
node 61.85053915755262 3.4732e-05 deg
peri 262.7274520260423 4.9983e-05 deg
M 248.189129323443 3.8675e-05 deg
tp 2459608.026420181915
(2022-Jan-28.52642018)
0.00021446 TDB
period 1956.06661447227
5.36
2.985e-05
8.172e-08
d
yr
n .184042811904504 2.8085e-09 deg/d
Q 3.338406838970493 3.3963e-08 au
  Orbit Determination Parameters
   # obs. used (total)      350  
   data-arc span      7645 days (20.93 yr)  
   first obs. used      1999-05-19  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56024  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:32:08  

Additional Information
 Earth MOID = 1.78843 au 
 Jupiter MOID = 1.95002 au 
 T_jup = 3.210 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457206.5 (2015-Jul-03.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08926140694793744 4.4712e-08  
q 2.788546292697019 1.4036e-07 au
tp 2457652.173909512795
(2016-Sep-20.67390951)
0.00020482 TDB
node 61.87031703095705 3.4723e-05 deg
peri 262.9896219379734 5.0367e-05 deg
i 8.579772614325982 6.108e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      350  
   data-arc span      7645 days (20.93 yr)  
   first obs. used      1999-05-19  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56024  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:32:08  

Additional Information
 Jupiter MOID = 1.95002 au 
 T_jup = 3.210 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.999129305282618E-15 -6.146601071264214E-15 1.61697393292405E-12 2.956917391499006E-15 3.266097741865645E-13 -1.641425581642916E-16
q -6.146601071264214E-15 1.970028984322925E-14 -2.845675873427449E-12 -1.297439317935235E-14 -6.570136382646926E-13 2.713560114124183E-15
tp 1.61697393292405E-12 -2.845675873427449E-12 4.194944390202843E-8 5.276135378086363E-11 7.49796723660339E-9 5.182904516708641E-12
node 2.956917391499006E-15 -1.297439317935235E-14 5.276135378086363E-11 1.205662916234316E-9 -1.182691871808909E-9 -5.654493165023999E-11
peri 3.266097741865645E-13 -6.570136382646926E-13 7.49796723660339E-9 -1.182691871808909E-9 2.536848968982808E-9 5.686141163909064E-11
i -1.641425581642916E-16 2.713560114124183E-15 5.182904516708641E-12 -5.654493165023999E-11 5.686141163909064E-11 3.730761285811442E-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 MPO433118  

173902 (2001 UN163)          Discovered 2001-Oct-23 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

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