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JPL Small-Body Database Browser
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71139 (1999 XB180)
Classification: Main-belt Asteroid          SPK-ID: 2071139
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07881348719331625 4.8005e-08  
a 3.085841017040938 3.1065e-08 au
q 2.842635125563772 1.4676e-07 au
i 12.06288605503494 5.8061e-06 deg
node 76.97927910293109 3.7925e-05 deg
peri 29.45702234878916 6.6872e-05 deg
M 206.2204789385717 5.6362e-05 deg
tp 2459446.274819559375
(2021-Aug-19.77481956)
0.00031293 TDB
period 1979.970628987384
5.42
2.9899e-05
8.186e-08
d
yr
n .1818208789208731 2.7456e-09 deg/d
Q 3.329046908518104 3.3514e-08 au
  Orbit Determination Parameters
   # obs. used (total)      638  
   data-arc span      7227 days (19.79 yr)  
   first obs. used      1998-09-28  
   last obs. used      2018-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61867  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 02:13:29  

Additional Information
 Earth MOID = 1.86597 au 
 Jupiter MOID = 1.88619 au 
 T_jup = 3.188 
[ 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 13.9   n/a MPO309690  
diameter diameter 5.841 km 0.220 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.156   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71139 (1999 XB180)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XB180 = 2001 FA169 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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