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49354 (1998 WP11)
Classification: Main-belt Asteroid          SPK-ID: 2049354
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1581461388657321 3.3085e-08  
a 2.630386483838452 1.1965e-08 au
q 2.214401017694791 8.5767e-08 au
i 14.65497943244515 4.9818e-06 deg
node 70.38782978267263 1.5725e-05 deg
peri 237.3788643254281 2.313e-05 deg
M 13.48111594836107 1.6791e-05 deg
tp 2458542.148622017149
(2019-Feb-27.64862202)
7.263e-05 TDB
period 1558.216408366406
4.27
1.0632e-05
2.911e-08
d
yr
n .231033377692008 1.5764e-09 deg/d
Q 3.046371949982112 1.3858e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1656  
   data-arc span      7711 days (21.11 yr)  
   first obs. used      1998-10-19  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4858  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:19:05  

Additional Information
 Earth MOID = 1.23461 au 
 Jupiter MOID = 2.22799 au 
 T_jup = 3.337 
[ 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 13.7   n/a MPO395468  
diameter diameter 3.573 km 0.293 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.604   0.102 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49354 (1998 WP11)          Discovered 1998-Nov-21 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 WP11 = 1999 XW180 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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