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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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04521232898946204 6.9251e-08  
a 2.585797725041165 2.3121e-08 au
q 2.468887787596401 1.676e-07 au
i 27.68188204449753 4.9218e-06 deg
node 264.531878351031 1.5625e-05 deg
peri 1.108958654443427 8.6798e-05 deg
M 52.32432502864523 8.4656e-05 deg
tp 2458379.754741254555
(2018-Sep-18.25474125)
0.0003572 TDB
period 1518.763846544697
4.16
2.037e-05
5.577e-08
d
yr
n .2370348759743177 3.1792e-09 deg/d
Q 2.702707662485929 2.4166e-08 au
  Orbit Determination Parameters
   # obs. used (total)      508  
   data-arc span      7328 days (20.06 yr)  
   first obs. used      1999-11-14  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47546  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 13:02:34  

Additional Information
 Earth MOID = 1.45274 au 
 Jupiter MOID = 2.39941 au 
 T_jup = 3.260 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457719.5 (2016-Nov-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04569236300183659 6.8875e-08  
q 2.467849069898683 1.6681e-07 au
tp 2458383.998122806096
(2018-Sep-22.49812281)
0.00035466 TDB
node 264.560382488935 1.5636e-05 deg
peri 2.171524730119723 8.6357e-05 deg
i 27.66812209597614 4.9205e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      508  
   data-arc span      7328 days (20.06 yr)  
   first obs. used      1999-11-14  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47546  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 13:02:34  

Additional Information
 Jupiter MOID = 2.39941 au 
 T_jup = 3.260 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.743754911885784E-15 -1.142031211495116E-14 -7.805677191045094E-13 1.979571117970248E-14 -6.156861139504229E-13 8.646279280603112E-15
q -1.142031211495116E-14 2.782571159808298E-14 1.691232631020283E-12 -4.289188003543344E-14 1.397777356141665E-12 -1.938784467418871E-14
tp -7.805677191045094E-13 1.691232631020283E-12 1.257824277943697E-7 -1.728647906992539E-10 3.010630275418476E-8 -2.369282698407792E-10
node 1.979571117970248E-14 -4.289188003543344E-14 -1.728647906992539E-10 2.444922481201847E-10 -2.595448255428788E-10 2.209456045938667E-12
peri -6.156861139504229E-13 1.397777356141665E-12 3.010630275418476E-8 -2.595448255428788E-10 7.45749242157051E-9 -5.906318010595168E-11
i 8.646279280603112E-15 -1.938784467418871E-14 -2.369282698407792E-10 2.209456045938667E-12 -5.906318010595168E-11 2.42113654070325E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1   n/a MPO502965  
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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