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JPL Small-Body Database Browser
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74166 (1998 QO109)
Classification: Main-belt Asteroid          SPK-ID: 2074166
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1846093720335496 5.4415e-08  
a 2.636630224752638 1.9467e-08 au
q 2.149883574676377 1.5327e-07 au
i 3.105329848770712 4.0537e-06 deg
node 248.1128828639332 9.7324e-05 deg
peri 106.6001046838511 9.8268e-05 deg
M 278.4586899171213 1.5499e-05 deg
tp 2458954.699097488645
(2020-Apr-15.19909749)
6.9854e-05 TDB
period 1563.767800226772
4.28
1.7318e-05
4.741e-08
d
yr
n .2302132068122864 2.5496e-09 deg/d
Q 3.123376874828899 2.3061e-08 au
  Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      13385 days (36.65 yr)  
   first obs. used      1981-08-30  
   last obs. used      2018-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59943  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 04:44:47  

Additional Information
 Earth MOID = 1.14681 au 
 Jupiter MOID = 2.3324 au 
 T_jup = 3.371 
[ 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 14.9   n/a MPO436302  

74166 (1998 QO109)          Discovered 1998-Aug-19 by NEAT at Haleakala
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QO109 = 1981 QX4 = 1981 UO1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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