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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .191717190042014 3.8834e-08  
a 2.589096838816388 1.371e-08 au
q 2.092722468131849 1.042e-07 au
i 12.12064367272333 5.1197e-06 deg
node 223.7514333667926 1.8396e-05 deg
peri 78.24916217408719 2.3581e-05 deg
M 226.706529320021 1.6325e-05 deg
tp 2459959.913493598037
(2023-Jan-15.41349360)
7.1563e-05 TDB
period 1521.671366651261
4.17
1.2086e-05
3.309e-08
d
yr
n .2365819636813245 1.8791e-09 deg/d
Q 3.085471209500928 1.6338e-08 au
  Orbit Determination Parameters
   # obs. used (total)      868  
   data-arc span      9651 days (26.42 yr)  
   first obs. used      1994-11-05  
   last obs. used      2021-04-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51542  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 21:27:02  

Additional Information
 Earth MOID = 1.11727 au 
 Jupiter MOID = 2.22624 au 
 T_jup = 3.363 
[ 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 14.94   n/a MPCxxxxx  
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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