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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1521188985336803 4.3901e-08  
a 2.204319073065727 7.7847e-09 au
q 1.869000483654185 9.6327e-08 au
i 3.251439616402631 4.0627e-06 deg
node 82.89562341078098 7.194e-05 deg
peri 319.6563371377858 7.282e-05 deg
M 157.8573044356507 1.2727e-05 deg
tp 2458476.329836939575
(2018-Dec-23.82983694)
4.0931e-05 TDB
period 1195.391365489048
3.27
6.3324e-06
1.734e-08
d
yr
n .3011566005855495 1.5953e-09 deg/d
Q 2.539637662477269 8.9688e-09 au
  Orbit Determination Parameters
   # obs. used (total)      607  
   data-arc span      10014 days (27.42 yr)  
   first obs. used      1992-11-26  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54892  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 22:38:53  

Additional Information
 Earth MOID = .879172 au 
 Jupiter MOID = 2.84074 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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