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173358 (1999 YL12)
Classification: Main-belt Asteroid          SPK-ID: 2173358
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04521232638061608 6.9293e-08  
a 2.58579772609567 2.3146e-08 au
q 2.468887795349177 1.6775e-07 au
i 27.68188158803135 4.9675e-06 deg
node 264.5318774581091 1.5678e-05 deg
peri 1.108957564454407 8.6879e-05 deg
M 52.32432646759695 8.47e-05 deg
tp 2458379.754735048890
(2018-Sep-18.25473505)
0.00035739 TDB
period 1518.76384747374
4.16
2.0392e-05
5.583e-08
d
yr
n .2370348758293212 3.1826e-09 deg/d
Q 2.702707656842162 2.4193e-08 au
  Orbit Determination Parameters
   # obs. used (total)      506  
   data-arc span      7305 days (20.00 yr)  
   first obs. used      1999-11-14  
   last obs. used      2019-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47443  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 14:33:37  

Additional Information
 Earth MOID = 1.45274 au 
 Jupiter MOID = 2.39941 au 
 T_jup = 3.260 
[ 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 15.0   n/a MPO454190  
diameter diameter 5.785 km 0.173 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

173358 (1999 YL12)          Discovered 1999-Dec-27 by Spacewatch at Kitt Peak
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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