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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456759.5 (2014-Apr-12.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1998613468182875 5.0504e-08  
q 1.933749509335936 1.2749e-07 au
tp 2456505.944337078633
(2013-Aug-01.44433708)
6.5554e-05 TDB
node 30.67565841820796 0.00010303 deg
peri 223.5567328554914 0.00010433 deg
i 2.647701939733262 5.8811e-06 deg
  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
 Jupiter MOID = 2.15555 au 
 T_jup = 3.487 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.550631223047766E-15 -6.417491943947769E-15 -1.568155212088544E-12 7.60374528711234E-15 -3.6900074344289E-13 -1.521288469787669E-16
q -6.417491943947769E-15 1.625392334815676E-14 4.165994719302791E-12 -2.084367959608878E-14 9.843303790631963E-13 7.113252623399028E-16
tp -1.568155212088544E-12 4.165994719302791E-12 4.29738412080813E-9 -1.545751068851824E-11 1.092336105187956E-9 1.780555955729214E-12
node 7.60374528711234E-15 -2.084367959608878E-14 -1.545751068851824E-11 1.061506631624728E-8 -1.060733779581947E-8 -8.130498068281264E-11
peri -3.6900074344289E-13 9.843303790631963E-13 1.092336105187956E-9 -1.060733779581947E-8 1.08839986463131E-8 8.168875625781305E-11
i -1.521288469787669E-16 7.113252623399028E-16 1.780555955729214E-12 -8.130498068281264E-11 8.168875625781305E-11 3.458677601361148E-11

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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