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18733 (1998 KV31)
Classification: Main-belt Asteroid          SPK-ID: 2018733
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03307579110171012 3.1708e-08  
a 2.870976289958124 1.4784e-08 au
q 2.776016477933507 9.1921e-08 au
i 13.50993907724128 3.8089e-06 deg
node 68.23533524125835 1.5593e-05 deg
peri 220.7868840823067 6.7572e-05 deg
M 183.2754956323246 6.7069e-05 deg
tp 2460072.742225672376
(2023-May-08.24222567)
0.00033257 TDB
period 1776.817552073952
4.86
1.3725e-05
3.758e-08
d
yr
n .2026094348177716 1.565e-09 deg/d
Q 2.965936101982742 1.5273e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1791  
   data-arc span      11084 days (30.35 yr)  
   first obs. used      1990-11-14  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46079  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:46:32  

Additional Information
 Earth MOID = 1.769 au 
 Jupiter MOID = 2.09316 au 
 T_jup = 3.256 
[ 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 13.71   n/a MPCxxxxx  

18733 (1998 KV31)          Discovered 1998-May-22 by LINEAR at Socorro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 KV31 = 2000 RH61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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