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46971 (1998 SE138)
Classification: Main-belt Asteroid          SPK-ID: 2046971
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08633592118057767 3.4252e-08  
a 2.744706764702368 1.3744e-08 au
q 2.507739977801227 9.7183e-08 au
i 5.606447547064184 4.9468e-06 deg
node 15.32843065030096 3.7999e-05 deg
peri 293.9902449405467 4.7494e-05 deg
M 338.9737787144674 2.7661e-05 deg
tp 2459097.506555925489
(2020-Sep-05.00655593)
0.00012763 TDB
period 1660.895681584267
4.55
1.2475e-05
3.415e-08
d
yr
n .2167505184049906 1.628e-09 deg/d
Q 2.98167355160351 1.493e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1216  
   data-arc span      7947 days (21.76 yr)  
   first obs. used      1998-09-14  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57621  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 21:42:25  

Additional Information
 Earth MOID = 1.50004 au 
 Jupiter MOID = 2.2367 au 
 T_jup = 3.336 
[ 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 14.4   n/a MPO337633  
diameter diameter 6.941 km 0.217 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46971 (1998 SE138)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 SE138 = 2000 AX31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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