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49340 (1998 WG)
Classification: Main-belt Asteroid          SPK-ID: 2049340
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2137599903787054 4.3695e-08  
a 2.557512362657214 1.1069e-08 au
q 2.010818544622188 1.143e-07 au
i 3.674618062391872 2.9924e-06 deg
node 101.1116488438593 8.2096e-05 deg
peri 231.5453869768754 8.2774e-05 deg
M 68.49649733296874 1.0054e-05 deg
tp 2458316.256264184539
(2018-Jul-16.75626418)
4.2113e-05 TDB
period 1493.912081316215
4.09
9.6981e-06
2.655e-08
d
yr
n .2409780364603659 1.5644e-09 deg/d
Q 3.10420618069224 1.3435e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1163  
   data-arc span      7856 days (21.51 yr)  
   first obs. used      1997-07-02  
   last obs. used      2019-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57843  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:50:06  

Additional Information
 Earth MOID = 1.00194 au 
 Jupiter MOID = 2.26511 au 
 T_jup = 3.401 
[ 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 15.4   n/a MPO459187  
diameter diameter 2.139 km 0.577 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.267   0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49340 (1998 WG)          Discovered 1998-Nov-16 by Boattini, A., Tesi, L. at San Marcello
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 WG = 2001 KD8 = 2014 UC55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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