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JPL Small-Body Database Browser
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71185 (1999 XS220)
Classification: Main-belt Asteroid          SPK-ID: 2071185
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03009878383295992 5.0889e-08  
a 2.700054766133706 2.1007e-08 au
q 2.618786401390694 1.4164e-07 au
i 15.85744785859042 5.1511e-06 deg
node 75.51331705934294 1.9452e-05 deg
peri 316.1053697046988 8.5238e-05 deg
M 153.6846176936057 8.41e-05 deg
tp 2457908.692625792845
(2017-Jun-04.19262579)
0.00037833 TDB
period 1620.530788651191
4.44
1.8912e-05
5.178e-08
d
yr
n .2221494355560114 2.5925e-09 deg/d
Q 2.781323130876717 2.1639e-08 au
  Orbit Determination Parameters
   # obs. used (total)      669  
   data-arc span      7141 days (19.55 yr)  
   first obs. used      1999-10-19  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54148  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:36:33  

Additional Information
 Earth MOID = 1.64387 au 
 Jupiter MOID = 2.40683 au 
 T_jup = 3.312 
[ 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 14.9   n/a MPO390209  
diameter diameter 3.166 km 0.805 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.279   0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71185 (1999 XS220)          Discovered 1999-Dec-14 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XS220 = 2001 CG35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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