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120992 (1998 XS23)
Classification: Outer Main-belt Asteroid          SPK-ID: 2120992
[ 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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04123290165916983 4.4049e-08  
a 3.258997941793732 3.4458e-08 au
q 3.124620000152314 1.5944e-07 au
i 4.097905967418439 5.5706e-06 deg
node 182.9258971552045 5.8037e-05 deg
peri 247.8986637541076 0.0001028 deg
M 229.1777366331127 8.8529e-05 deg
tp 2459781.414908423519
(2022-Jul-20.91490842)		 0.00053505 TDB
period 2148.941317763687
5.88		 3.4082e-05
9.331e-08		 d
yr
n .1675243511882571 2.6569e-09 deg/d
Q 3.39337588343515 3.5879e-08 au
   Orbit Determination Parameters
   # obs. used (total)      418  
   data-arc span      7901 days (21.63 yr)  
   first obs. used      1998-12-11  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56952  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:12:01  

Additional Information
 Earth MOID = 2.14181 au 
 Jupiter MOID = 1.74544 au 
 T_jup = 3.174 
[ 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 15.1   n/a MPO436584  

120992 (1998 XS23)          Discovered 1998-Dec-11 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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Alternate Designations
 1998 XS23 = 2000 DB22 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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