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226837 (2004 SZ16)
Classification: Main-belt Asteroid          SPK-ID: 2226837
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2145416224486118 4.8674e-08  
a 2.784834733904324 2.3045e-08 au
q 2.187371771841242 1.3429e-07 au
i 9.32288811852556 5.4293e-06 deg
node 96.6412878612516 4.3579e-05 deg
peri 210.5380708621505 4.6118e-05 deg
M 172.1650961389655 1.7478e-05 deg
tp 2458188.716581602381
(2018-Mar-11.21658160)
7.8604e-05 TDB
period 1697.452254708211
4.65
2.107e-05
5.769e-08
d
yr
n .2120825484201224 2.6325e-09 deg/d
Q 3.382297695967405 2.7989e-08 au
  Orbit Determination Parameters
   # obs. used (total)      301  
   data-arc span      7496 days (20.52 yr)  
   first obs. used      1999-07-16  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53304  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 05:59:09  

Additional Information
 Earth MOID = 1.17798 au 
 Jupiter MOID = 1.88764 au 
 T_jup = 3.279 
[ 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 15.7   n/a MPO454630  
diameter diameter 4.030 km 0.238 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.075   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226837 (2004 SZ16)          Discovered 2004-Sep-17 by LONEOS at Anderson Mesa
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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