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JPL Small-Body Database Browser
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71142 (1999 XP181)
Classification: Main-belt Asteroid          SPK-ID: 2071142
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1213111642690139 5.0911e-08  
a 2.668925192981433 1.6719e-08 au
q 2.345154770473953 1.3922e-07 au
i 12.89917265384261 5.1355e-06 deg
node 28.76357456478811 1.9779e-05 deg
peri 165.2176483460117 2.6645e-05 deg
M 135.4040217552854 1.8785e-05 deg
tp 2458401.492732188821
(2018-Oct-09.99273219)
8.1418e-05 TDB
period 1592.586494969505
4.36
1.4965e-05
4.097e-08
d
yr
n .2260473771045593 2.124e-09 deg/d
Q 2.992695615488913 1.8747e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1062  
   data-arc span      16157 days (44.24 yr)  
   first obs. used      1975-04-15  
   last obs. used      2019-07-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56137  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 11:24:57  

Additional Information
 Earth MOID = 1.34541 au 
 Jupiter MOID = 1.96526 au 
 T_jup = 3.336 
[ 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 14.4   n/a MPO436280  
diameter diameter 4.037 km 0.120 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.269   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71142 (1999 XP181)          Discovered 1999-Dec-12 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XP181 = 1975 GU 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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