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JPL Small-Body Database Browser
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136517 (2005 SY20)
Classification: Main-belt Asteroid          SPK-ID: 2136517
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1520537109336127 4.7445e-08  
a 2.204790015164981 8.2738e-09 au
q 1.86954351152977 1.0513e-07 au
i 3.251474520306316 5.3414e-06 deg
node 82.89751519062638 7.2337e-05 deg
peri 319.7489634635251 7.3705e-05 deg
M 37.31706728283068 1.3731e-05 deg
tp 2458476.547787878005
(2018-Dec-24.04778788)
4.5439e-05 TDB
period 1195.774470317198
3.27
6.731e-06
1.843e-08
d
yr
n .3010601153781987 1.6947e-09 deg/d
Q 2.540036518800193 9.5319e-09 au
  Orbit Determination Parameters
   # obs. used (total)      538  
   data-arc span      9514 days (26.05 yr)  
   first obs. used      1992-11-26  
   last obs. used      2018-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56317  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 04:35:24  

Additional Information
 Earth MOID = .879178 au 
 Jupiter MOID = 2.83942 au 
 T_jup = 3.645 
[ 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 16.7   n/a MPO453848  
diameter diameter 2.333 km 0.322 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.074   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

136517 (2005 SY20)          Discovered 2005-Sep-25 by Spacewatch at Kitt Peak
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Alternate Designations
 2005 SY20 = 2003 AH29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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