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JPL Small-Body Database Browser
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74164 (1998 QL104)
Classification: Main-belt Asteroid          SPK-ID: 2074164
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .185534139858593 6.4878e-08  
a 2.558277195159279 1.6011e-08 au
q 2.083629436235548 1.7054e-07 au
i 4.823859700744608 4.6837e-06 deg
node 41.13036453556435 7.3876e-05 deg
peri 306.2266114888101 7.5342e-05 deg
M 20.75800696314333 1.9487e-05 deg
tp 2458514.320696732671
(2019-Jan-30.82069673)
8.0345e-05 TDB
period 1494.58227041371
4.09
1.403e-05
3.841e-08
d
yr
n .2408699789409047 2.2612e-09 deg/d
Q 3.032924954083009 1.8981e-08 au
  Orbit Determination Parameters
   # obs. used (total)      410  
   data-arc span      9565 days (26.19 yr)  
   first obs. used      1991-01-19  
   last obs. used      2017-03-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57162  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-11 16:21:10  

Additional Information
 Earth MOID = 1.08069 au 
 Jupiter MOID = 2.39411 au 
 T_jup = 3.407 
[ 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 15.6   n/a MPO400698  

74164 (1998 QL104)          Discovered 1998-Aug-26 by Elst, E. W. at La Silla
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QL104 = 2001 FT4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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