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249502 (2009 YL16)
Classification: Main-belt Asteroid          SPK-ID: 2249502
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1202900975227772 6.5258e-08  
a 2.6609067154964 2.5807e-08 au
q 2.340825987190325 1.7591e-07 au
i 12.03457720623343 5.9726e-06 deg
node 278.8362355609514 3.8977e-05 deg
peri 308.3697740007137 4.8664e-05 deg
M 68.63373966619076 2.9832e-05 deg
tp 2458698.241819619037
(2019-Aug-02.74181962)
0.00013141 TDB
period 1585.414775100013
4.34
2.3065e-05
6.315e-08
d
yr
n .2270699161216597 3.3034e-09 deg/d
Q 2.980987443802474 2.8912e-08 au
  Orbit Determination Parameters
   # obs. used (total)      290  
   data-arc span      6621 days (18.13 yr)  
   first obs. used      2002-06-17  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57188  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 17:01:57  

Additional Information
 Earth MOID = 1.34986 au 
 Jupiter MOID = 2.13074 au 
 T_jup = 3.344 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457071.5 (2015-Feb-18.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1188894298180985 6.5548e-08  
q 2.343590248678456 1.7602e-07 au
tp 2457112.337853656909
(2015-Mar-30.83785366)
0.00013521 TDB
node 278.8640220668255 3.8989e-05 deg
peri 308.1787507538372 4.8818e-05 deg
i 12.03276866146462 5.972e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      290  
   data-arc span      6621 days (18.13 yr)  
   first obs. used      2002-06-17  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57188  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 17:01:57  

Additional Information
 Jupiter MOID = 2.13074 au 
 T_jup = 3.344 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.296540104654978E-15 -1.144439026160507E-14 -2.823433192311081E-12 -1.143101410458561E-14 -6.769571149673528E-13 2.705176136178466E-15
q -1.144439026160507E-14 3.098359547026261E-14 6.897083552985796E-12 2.576606541747416E-14 1.667435002180622E-12 -5.124651202866316E-15
tp -2.823433192311081E-12 6.897083552985796E-12 1.828297085877583E-8 7.210913084324438E-11 4.063711224623351E-9 -4.315822480161658E-12
node -1.143101410458561E-14 2.576606541747416E-14 7.210913084324438E-11 1.520138490011602E-9 -1.471331113174976E-9 -4.943889172066948E-12
peri -6.769571149673528E-13 1.667435002180622E-12 4.063711224623351E-9 -1.471331113174976E-9 2.383150394082311E-9 3.638129180910374E-12
i 2.705176136178466E-15 -5.124651202866316E-15 -4.315822480161658E-12 -4.943889172066948E-12 3.638129180910374E-12 3.566478555941213E-11

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 15.6   n/a MPO476003  
diameter diameter 2.098 km 0.583 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.278   0.171 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249502 (2009 YL16)          Discovered 2009-Dec-19 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2009 YL16 = 2003 UA341 = 2004 YS30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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