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49357 (1998 WG14)
Classification: Main-belt Asteroid          SPK-ID: 2049357
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1330823457544579 4.2152e-08  
a 2.596084035454266 1.2397e-08 au
q 2.250591082240314 1.0874e-07 au
i 15.93705792970013 5.3296e-06 deg
node 58.71169655140233 1.5675e-05 deg
peri 248.5181576491207 2.397e-05 deg
M 148.6160309999792 1.9055e-05 deg
tp 2458369.775495079781
(2018-Sep-08.27549508)
7.9808e-05 TDB
period 1527.835323305806
4.18
1.0944e-05
2.996e-08
d
yr
n .2356274884527877 1.6878e-09 deg/d
Q 2.941576988668219 1.4047e-08 au
  Orbit Determination Parameters
   # obs. used (total)      821  
   data-arc span      8008 days (21.92 yr)  
   first obs. used      1998-11-18  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54217  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:33:04  

Additional Information
 Earth MOID = 1.28819 au 
 Jupiter MOID = 2.32175 au 
 T_jup = 3.351 
[ 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 MPO449317  
diameter diameter 3.501 km 0.120 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.190   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49357 (1998 WG14)          Discovered 1998-Nov-21 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 WG14 = 1998 WT32 = 2001 HG30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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