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JPL Small-Body Database Browser
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49344 (1998 WC4)
Classification: Main-belt Asteroid          SPK-ID: 2049344
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07824773837158661 5.1815e-08  
a 2.754995038569297 1.8963e-08 au
q 2.539422907576307 1.4275e-07 au
i 6.036047891998515 5.8293e-06 deg
node 7.185216186441584 4.5264e-05 deg
peri 28.2071689393625 5.5004e-05 deg
M 281.3066284596491 3.2715e-05 deg
tp 2459365.602923365444
(2021-May-31.10292337)
0.00015326 TDB
period 1670.242993009444
4.57
1.7245e-05
4.721e-08
d
yr
n .2155375005353873 2.2253e-09 deg/d
Q 2.970567169562286 2.0447e-08 au
  Orbit Determination Parameters
   # obs. used (total)      785  
   data-arc span      9361 days (25.63 yr)  
   first obs. used      1993-10-22  
   last obs. used      2019-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59286  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 07:40:06  

Additional Information
 Earth MOID = 1.5472 au 
 Jupiter MOID = 2.36837 au 
 T_jup = 3.331 
[ 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 14.9   n/a MPO302339  

49344 (1998 WC4)          Discovered 1998-Nov-20 by Farra d'Isonzo at Farra d'Isonzo
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 WC4 = 2000 ER172 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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