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243469 (2009 SY158)
Classification: Main-belt Asteroid          SPK-ID: 2243469
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1650545498895562 1.0663e-07  
a 3.181350283357118 6.2366e-08 au
q 2.656253944296597 3.057e-07 au
i 7.448715685563813 9.515e-06 deg
node 228.5548614705672 5.6145e-05 deg
peri 179.2227895768126 6.3795e-05 deg
M 232.2153646809431 2.8885e-05 deg
tp 2459336.184826388792
(2021-May-01.68482639)
0.00017519 TDB
period 2072.600800860662
5.67
6.0946e-05
1.669e-07
d
yr
n .1736948088848115 5.1076e-09 deg/d
Q 3.706446622417639 7.266e-08 au
  Orbit Determination Parameters
   # obs. used (total)      193  
   data-arc span      7091 days (19.41 yr)  
   first obs. used      1998-12-15  
   last obs. used      2018-05-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55538  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:33:06  

Additional Information
 Earth MOID = 1.66577 au 
 Jupiter MOID = 1.68234 au 
 T_jup = 3.165 
[ show covariance matrix ]

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 15.8   n/a MPO450092  
diameter diameter 4.807 km 0.327 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.033   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243469 (2009 SY158)          Discovered 2009-Sep-20 by Spacewatch at Kitt Peak
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

[ show close-approach data ]
Alternate Designations
 2009 SY158 = 1998 XX14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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