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74248 (1998 SS64)
Classification: Main-belt Asteroid          SPK-ID: 2074248
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 .2619731031548755 3.7229e-08  
a 2.684648201537569 1.4714e-08 au
q 1.981342581301617 1.0314e-07 au
i 4.169916716064622 5.3518e-06 deg
node 56.29595980651717 6.6708e-05 deg
peri 247.9117275088058 6.7679e-05 deg
M 21.00587315216171 1.4702e-05 deg
tp 2458906.750763413902
(2020-Feb-27.25076341)
6.507e-05 TDB
period 1606.6804234473
4.40
1.3209e-05
3.616e-08
d
yr
n .2240644715316706 1.8421e-09 deg/d
Q 3.387953821773522 1.8569e-08 au
  Orbit Determination Parameters
   # obs. used (total)      904  
   data-arc span      7594 days (20.79 yr)  
   first obs. used      1998-09-18  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58872  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:13:19  

Additional Information
 Earth MOID = .970791 au 
 Jupiter MOID = 1.88724 au 
 T_jup = 3.321 
[ 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 14.9   n/a MPO247886  
diameter diameter 3.271 km 1.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.198   0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74248 (1998 SS64)          Discovered 1998-Sep-20 by Elst, E. W. at La Silla
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SS64 = 1998 US38 = 2001 FR112 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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