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74224 (1998 SX1)
Classification: Main-belt Asteroid          SPK-ID: 2074224
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1640884746690371 6.3631e-08  
a 2.654693161897307 2.067e-08 au
q 2.219088610247254 1.6963e-07 au
i 13.4338288795979 7.6943e-06 deg
node 29.26854971349481 2.1251e-05 deg
peri 318.1579909530815 2.7949e-05 deg
M 17.2159223539973 2.3072e-05 deg
tp 2458924.947695093269
(2020-Mar-16.44769509)
0.0001007 TDB
period 1579.864802312379
4.33
1.8452e-05
5.052e-08
d
yr
n .2278675994762866 2.6614e-09 deg/d
Q 3.090297713547359 2.4062e-08 au
  Orbit Determination Parameters
   # obs. used (total)      754  
   data-arc span      7211 days (19.74 yr)  
   first obs. used      1998-09-14  
   last obs. used      2018-06-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60856  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 02:29:20  

Additional Information
 Earth MOID = 1.23318 au 
 Jupiter MOID = 2.40718 au 
 T_jup = 3.331 
[ 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 MPO302456  
diameter diameter 3.964 km 0.347 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.235   0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74224 (1998 SX1)          Discovered 1998-Sep-16 by ODAS at Caussols
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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