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120855 (1998 QO23)
Classification: Main-belt Asteroid          SPK-ID: 2120855
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2598365155454579 4.6708e-08  
a 3.172408569729103 2.8169e-08 au
q 2.348100981084143 1.4943e-07 au
i 19.81192433796888 5.0284e-06 deg
node 143.3137300887088 1.7543e-05 deg
peri 232.5940614652672 2.009e-05 deg
M 323.2937937623171 1.299e-05 deg
tp 2459410.935544533485
(2021-Jul-15.43554453)
7.6443e-05 TDB
period 2063.868860255078
5.65
2.7489e-05
7.526e-08
d
yr
n .1744296873375505 2.3232e-09 deg/d
Q 3.996716158374062 3.5488e-08 au
  Orbit Determination Parameters
   # obs. used (total)      423  
   data-arc span      9302 days (25.47 yr)  
   first obs. used      1995-01-29  
   last obs. used      2020-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60227  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:54:15  

Additional Information
 Earth MOID = 1.39704 au 
 Jupiter MOID = 1.68828 au 
 T_jup = 3.059 
[ 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 15.02   n/a E2021B55  

120855 (1998 QO23)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1998 QO23 = 2004 TZ6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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