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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2604794115129819 4.691e-08  
a 3.172645637345401 2.744e-08 au
q 2.346236768790442 1.5022e-07 au
i 19.79818780215066 5.2714e-06 deg
node 143.3391792117626 1.7689e-05 deg
peri 232.6542325910293 2.0426e-05 deg
M 288.405204317736 1.2825e-05 deg
tp 2459410.996757315275
(2021-Jul-15.49675732)
7.7121e-05 TDB
period 2064.100207637126
5.65
2.6778e-05
7.331e-08
d
yr
n .1744101370020737 2.2627e-09 deg/d
Q 3.99905450590036 3.4587e-08 au
  Orbit Determination Parameters
   # obs. used (total)      404  
   data-arc span      8868 days (24.28 yr)  
   first obs. used      1995-01-29  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61402  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:58:23  

Additional Information
 Earth MOID = 1.39678 au 
 Jupiter MOID = 1.68642 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 15.0   n/a MPO436583  

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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