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173881 (2001 UY45)
Classification: Main-belt Asteroid          SPK-ID: 2173881
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2005325465455415 3.8252e-08  
a 3.125615773224327 2.6038e-08 au
q 2.498828082696741 1.2024e-07 au
i 4.651073641676548 4.8067e-06 deg
node 89.03568165614047 8.8859e-05 deg
peri 9.247156798740235 9.0727e-05 deg
M 90.31007430302246 1.9873e-05 deg
tp 2458494.167842627677
(2019-Jan-10.66784263)
0.00010837 TDB
period 2018.37478333174
5.53
2.5221e-05
6.905e-08
d
yr
n .1783613246523752 2.2287e-09 deg/d
Q 3.752403463751913 3.1259e-08 au
  Orbit Determination Parameters
   # obs. used (total)      352  
   data-arc span      8537 days (23.37 yr)  
   first obs. used      1996-12-10  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61465  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:31:30  

Additional Information
 Earth MOID = 1.51582 au 
 Jupiter MOID = 1.4333 au 
 T_jup = 3.178 
[ show covariance matrix ]

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 15.5   n/a MPO469864  

173881 (2001 UY45)          Discovered 2001-Oct-17 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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