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46974 (1998 SA140)
Classification: Main-belt Asteroid          SPK-ID: 2046974
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .191762463748014 4.3262e-08  
a 2.588972015593802 1.3678e-08 au
q 2.092504363308873 1.1533e-07 au
i 12.12160784565804 7.0097e-06 deg
node 223.7723902148203 1.8801e-05 deg
peri 78.1511318030459 2.6973e-05 deg
M 133.1296586178632 1.9188e-05 deg
tp 2458437.819611476997
(2018-Nov-15.31961148)
7.9274e-05 TDB
period 1521.56132578786
4.17
1.2058e-05
3.301e-08
d
yr
n .2365990735296805 1.8749e-09 deg/d
Q 3.085439667878731 1.6301e-08 au
  Orbit Determination Parameters
   # obs. used (total)      773  
   data-arc span      9478 days (25.95 yr)  
   first obs. used      1994-11-05  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5315  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:44:32  

Additional Information
 Earth MOID = 1.11743 au 
 Jupiter MOID = 2.22761 au 
 T_jup = 3.364 
[ 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 14.9   n/a MPO502469  
diameter diameter 2.888 km 0.173 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.279   0.093 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46974 (1998 SA140)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 SA140 = 2001 FJ138 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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