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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1844444718162376 6.1897e-08  
a 2.776451432922636 1.5191e-08 au
q 2.264350314853784 1.696e-07 au
i 35.64636446432397 6.1995e-06 deg
node 9.20322861546634 7.6254e-06 deg
peri 324.5762542080849 1.3719e-05 deg
M 110.6530011564156 1.2772e-05 deg
tp 2458681.109209146535
(2019-Jul-16.60920915)
5.8907e-05 TDB
period 1689.793161985162
4.63
1.3868e-05
3.797e-08
d
yr
n .2130438257763297 1.7485e-09 deg/d
Q 3.288552550991488 1.7993e-08 au
  Orbit Determination Parameters
   # obs. used (total)      884  
   data-arc span      8933 days (24.46 yr)  
   first obs. used      1996-09-21  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46762  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:56:15  

Additional Information
 Earth MOID = 1.30156 au 
 Jupiter MOID = 2.26418 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 14.54   n/a E2021B55  
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. 2020-October); 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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