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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1377604978338637 4.2612e-08  
a 2.599817162837747 1.3438e-08 au
q 2.241665056208196 1.0665e-07 au
i 13.86368285094106 5.5006e-06 deg
node 67.63612234660809 1.7365e-05 deg
peri 263.6529915304242 2.7518e-05 deg
M 114.7403580044725 2.0818e-05 deg
tp 2458512.492679995538
(2019-Jan-28.99268000)		 8.7668e-05 TDB
period 1531.132011935664
4.19		 1.1871e-05
3.25e-08		 d
yr
n .2351201576308802 1.823e-09 deg/d
Q 2.957969269467298 1.5289e-08 au
   Orbit Determination Parameters
   # obs. used (total)      799  
   data-arc span      8017 days (21.95 yr)  
   first obs. used      1998-11-11  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55463  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:32:57  

Additional Information
 Earth MOID = 1.28148 au 
 Jupiter MOID = 2.42925 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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