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JPL Small-Body Database Browser
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226845 (2004 SG40)
Classification: Main-belt Asteroid          SPK-ID: 2226845
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08670166561286009 6.9839e-08  
a 2.719498061621498 3.2328e-08 au
q 2.48371305004797 2.029e-07 au
i 5.86962458307114 8.4494e-06 deg
node 32.26445129706344 5.5954e-05 deg
peri 313.4227286391989 6.7879e-05 deg
M 116.181342982439 3.8546e-05 deg
tp 2458071.853393354948
(2017-Nov-14.35339335)
0.00017463 TDB
period 1638.06660782863
4.48
2.9209e-05
7.997e-08
d
yr
n .2197712829743869 3.9188e-09 deg/d
Q 2.955283073195026 3.5131e-08 au
  Orbit Determination Parameters
   # obs. used (total)      261  
   data-arc span      5228 days (14.31 yr)  
   first obs. used      2004-09-17  
   last obs. used      2019-01-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51142  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 19:06:58  

Additional Information
 Earth MOID = 1.48054 au 
 Jupiter MOID = 2.39763 au 
 T_jup = 3.346 
[ 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 16.0   n/a MPO334336  
diameter diameter 4.057 km 0.482 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226845 (2004 SG40)          Discovered 2004-Sep-17 by LINEAR at Socorro
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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