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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1207592491947072 5.4195e-08  
a 2.670918534767201 1.7452e-08 au
q 2.348380417848486 1.4912e-07 au
i 12.90148323701936 5.2207e-06 deg
node 28.82708176955752 2.0018e-05 deg
peri 165.5573933569304 2.6935e-05 deg
M 44.68517597906356 1.8953e-05 deg
tp 2458402.597918741053
(2018-Oct-11.09791874)
8.3362e-05 TDB
period 1594.371012136135
4.37
1.5626e-05
4.278e-08
d
yr
n .2257943711091891 2.213e-09 deg/d
Q 2.993456651685915 1.9559e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1009  
   data-arc span      15740 days (43.09 yr)  
   first obs. used      1975-04-15  
   last obs. used      2018-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54778  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 02:13:33  

Additional Information
 Earth MOID = 1.34877 au 
 Jupiter MOID = 1.96552 au 
 T_jup = 3.335 
[ 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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