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46729 (1997 SJ31)
Classification: Main-belt Asteroid          SPK-ID: 2046729
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03056611344676074 4.4326e-08  
a 3.037167295866123 2.4163e-08 au
q 2.944332895743888 1.3916e-07 au
i .6964530699331749 6.5602e-06 deg
node 334.1476895593588 0.00040717 deg
peri 308.9147106704145 0.00042182 deg
M 93.47653474623638 0.00011042 deg
tp 2458098.502444192353
(2017-Dec-11.00244419)
0.00059349 TDB
period 1933.310007493932
5.29
2.3071e-05
6.316e-08
d
yr
n .1862091431816736 2.2221e-09 deg/d
Q 3.130001695988359 2.4901e-08 au
  Orbit Determination Parameters
   # obs. used (total)      462  
   data-arc span      9479 days (25.95 yr)  
   first obs. used      1992-10-03  
   last obs. used      2018-09-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56564  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 23:57:54  

Additional Information
 Earth MOID = 1.92734 au 
 Jupiter MOID = 1.90657 au 
 T_jup = 3.240 
[ 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 15.2   n/a MPO351163  
diameter diameter 6.534 km 2.184 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.034   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46729 (1997 SJ31)          Discovered 1997-Sep-28 by Spacewatch at Kitt Peak
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 SJ31 = 2000 EN8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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