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74058 (1998 KQ18)
Classification: Main-belt Asteroid          SPK-ID: 2074058
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1992861660178858 5.0698e-08  
a 2.416861197360898 1.4438e-08 au
q 1.935214195541448 1.2795e-07 au
i 2.647043756585695 5.8819e-06 deg
node 30.64994975702148 0.00010303 deg
peri 223.5336994728526 0.00010432 deg
M 294.3562246744322 2.0777e-05 deg
tp 2459250.745940030752
(2021-Feb-05.24594003)
8.0784e-05 TDB
period 1372.385088521587
3.76
1.2298e-05
3.367e-08
d
yr
n .2623170442545488 2.3506e-09 deg/d
Q 2.898508199180348 1.7316e-08 au
  Orbit Determination Parameters
   # obs. used (total)      454  
   data-arc span      9534 days (26.10 yr)  
   first obs. used      1994-03-14  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59988  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:02:49  

Additional Information
 Earth MOID = .921681 au 
 Jupiter MOID = 2.15555 au 
 T_jup = 3.487 
[ 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 16.4   n/a MPO493386  

74058 (1998 KQ18)          Discovered 1998-May-22 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 KQ18 = 1999 UH33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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