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49325 (1998 VK31)
Classification: Main-belt Asteroid          SPK-ID: 2049325
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08306974926354745 3.717e-08  
a 2.468226194754106 1.0101e-08 au
q 2.263191263630163 9.358e-08 au
i 8.194572006334342 4.2141e-06 deg
node 248.9478142009906 2.9581e-05 deg
peri 19.27435396273284 4.0782e-05 deg
M 1.517885843775449 2.9378e-05 deg
tp 2458994.528100748894
(2020-May-25.02810075)
0.00011557 TDB
period 1416.367205224563
3.88
8.6943e-06
2.38e-08
d
yr
n .2541713749598731 1.5602e-09 deg/d
Q 2.67326112587805 1.094e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1455  
   data-arc span      7965 days (21.81 yr)  
   first obs. used      1998-11-14  
   last obs. used      2020-09-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52307  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:33:14  

Additional Information
 Earth MOID = 1.24909 au 
 Jupiter MOID = 2.38592 au 
 T_jup = 3.467 
[ 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 14.3   n/a MPO337652  

49325 (1998 VK31)          Discovered 1998-Nov-14 by Kobayashi, T. at Oizumi
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 VK31 = 2000 EV158 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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