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JPL Small-Body Database Browser
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49376 (1998 WB41)
Classification: Main-belt Asteroid          SPK-ID: 2049376
[ 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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1375780341690811 4.3082e-08  
a 2.599062657567767 1.355e-08 au
q 2.241488726457326 1.08e-07 au
i 13.86497920002412 5.5977e-06 deg
node 67.63567721239868 1.8061e-05 deg
peri 263.5522701920484 2.8409e-05 deg
M 20.78698738059479 2.1007e-05 deg
tp 2458512.128423478331
(2019-Jan-28.62842348)		 8.917e-05 TDB
period 1530.465524672411
4.19		 1.1969e-05
3.277e-08		 d
yr
n .2352225477781059 1.8395e-09 deg/d
Q 2.956636588678208 1.5415e-08 au
   Orbit Determination Parameters
   # obs. used (total)      731  
   data-arc span      7696 days (21.07 yr)  
   first obs. used      1998-11-11  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55145  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:19:23  

Additional Information
 Earth MOID = 1.28046 au 
 Jupiter MOID = 2.42812 au 
 T_jup = 3.361 
[ 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 14.8   n/a MPO452841  
diameter diameter 3.150 km 0.206 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.257   0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49376 (1998 WB41)          Discovered 1998-Nov-18 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 WB41 = 2001 KN9 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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