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JPL Small-Body Database Browser
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71187 (1999 XG224)
Classification: Main-belt Asteroid          SPK-ID: 2071187
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 .08502154745515596 4.3572e-08  
a 2.797308549539099 1.4926e-08 au
q 2.559477047947747 1.2224e-07 au
i 1.212567544206207 4.1237e-06 deg
node 293.9555854410954 0.00023819 deg
peri 100.2669900904049 0.00023975 deg
M 109.4414127453539 2.679e-05 deg
tp 2458080.996861384516
(2017-Nov-23.49686138)
0.00012636 TDB
period 1708.869843783278
4.68
1.3677e-05
3.745e-08
d
yr
n .2106655467703694 1.6861e-09 deg/d
Q 3.035140051130451 1.6195e-08 au
  Orbit Determination Parameters
   # obs. used (total)      986  
   data-arc span      7521 days (20.59 yr)  
   first obs. used      1998-08-27  
   last obs. used      2019-03-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54163  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:41:27  

Additional Information
 Earth MOID = 1.56541 au 
 Jupiter MOID = 2.32433 au 
 T_jup = 3.321 
[ 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 MPO247873  
diameter diameter 5.177 km 0.314 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.060   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71187 (1999 XG224)          Discovered 1999-Dec-13 by Spacewatch at Kitt Peak
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XG224 = 1998 RS43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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