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JPL Small-Body Database Browser
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71140 (1999 XK180)
Classification: Main-belt Asteroid          SPK-ID: 2071140
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1126873790603396 4.9709e-08  
a 2.772020011599174 1.7225e-08 au
q 2.459648341789251 1.4069e-07 au
i 15.25223660977704 5.143e-06 deg
node 77.04767013985484 1.9197e-05 deg
peri 338.7687186691721 2.8888e-05 deg
M 126.4399196928995 2.2658e-05 deg
tp 2458008.427787193176
(2017-Sep-11.92778719)
0.00010344 TDB
period 1685.749224834617
4.62
1.5712e-05
4.302e-08
d
yr
n .2135548957676776 1.9905e-09 deg/d
Q 3.084391681409097 1.9166e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1127  
   data-arc span      10779 days (29.51 yr)  
   first obs. used      1989-11-06  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48459  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:36:28  

Additional Information
 Earth MOID = 1.47778 au 
 Jupiter MOID = 2.24241 au 
 T_jup = 3.276 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0   n/a MPO385267  
diameter diameter 7.767 km 0.196 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.097   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71140 (1999 XK180)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XK180 = 1989 XN1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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