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118223 (1996 SO4)
Classification: Main-belt Asteroid          SPK-ID: 2118223
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1844381801131226 7.5521e-08  
a 2.77594314379791 1.6185e-08 au
q 2.263953242258323 2.1048e-07 au
i 35.64774123516016 9.2256e-06 deg
node 9.210888437551578 7.7213e-06 deg
peri 324.5145292343589 1.6518e-05 deg
M 68.09910895325071 1.4493e-05 deg
tp 2458680.939416386854
(2019-Jul-16.43941639)
6.7956e-05 TDB
period 1689.329153773617
4.63
1.4775e-05
4.045e-08
d
yr
n .2131023425457575 1.8638e-09 deg/d
Q 3.287933045337497 1.917e-08 au
  Orbit Determination Parameters
   # obs. used (total)      673  
   data-arc span      8720 days (23.87 yr)  
   first obs. used      1996-09-21  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49627  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:02:24  

Additional Information
 Earth MOID = 1.3029 au 
 Jupiter MOID = 2.26412 au 
 T_jup = 3.041 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6   n/a MPO502793  
diameter diameter 4.030 km 0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 10.121 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.207   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118223 (1996 SO4)          Discovered 1996-Sep-21 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

Alternate Designations
 1996 SO4 = 2005 NF7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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