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49342 (1998 WE3)
Classification: Main-belt Asteroid          SPK-ID: 2049342
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02981498857966912 3.6628e-08  
a 2.74245899237076 1.616e-08 au
q 2.660692608833015 9.9773e-08 au
i 4.48457999040909 5.0759e-06 deg
node 339.0441077144349 5.3342e-05 deg
peri 76.09890486994274 0.00010295 deg
M 178.3019429626691 8.8785e-05 deg
tp 2457778.896623581876
(2017-Jan-25.39662358)
0.00040826 TDB
period 1658.855818371262
4.54
1.4663e-05
4.015e-08
d
yr
n .2170170523641192 1.9182e-09 deg/d
Q 2.824225375908505 1.6642e-08 au
  Orbit Determination Parameters
   # obs. used (total)      903  
   data-arc span      9366 days (25.64 yr)  
   first obs. used      1993-09-15  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54878  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:40:39  

Additional Information
 Earth MOID = 1.67481 au 
 Jupiter MOID = 2.27146 au 
 T_jup = 3.344 
[ 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 14.7   n/a MPO263747  
diameter diameter 6.545 km 0.192 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49342 (1998 WE3)          Discovered 1998-Nov-18 by Kagawa, T. at Gekko
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 WE3 = 1993 RA17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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