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74268 (1998 SK109)
Classification: Main-belt Asteroid          SPK-ID: 2074268
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .264061898424229 4.2123e-08  
a 2.676486896404811 1.9646e-08 au
q 1.969728685432584 1.0726e-07 au
i 12.2833755311556 5.4435e-06 deg
node 354.1378571080751 2.3459e-05 deg
peri 34.08515626187776 2.6781e-05 deg
M 333.8166589568519 1.3719e-05 deg
tp 2459116.823824066612
(2020-Sep-24.32382407)
6.1688e-05 TDB
period 1599.359554419386
4.38
1.761e-05
4.821e-08
d
yr
n .225090098724355 2.4784e-09 deg/d
Q 3.383245107377038 2.4834e-08 au
  Orbit Determination Parameters
   # obs. used (total)      486  
   data-arc span      10766 days (29.48 yr)  
   first obs. used      1991-02-07  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54567  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:11:53  

Additional Information
 Earth MOID = .98532 au 
 Jupiter MOID = 2.14798 au 
 T_jup = 3.296 
[ 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 15.3   n/a MPO439561  
diameter diameter 5.030 km 0.858 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.044   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

74268 (1998 SK109)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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