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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04123290420954721 4.3184e-08  
a 3.258997943316536 3.4103e-08 au
q 3.124619993300654 1.5769e-07 au
i 4.097906079773352 5.2516e-06 deg
node 182.9258981200446 5.6762e-05 deg
peri 247.8986588679832 0.00010115 deg
M 229.1777402387297 8.7628e-05 deg
tp 2459781.414887447914
(2022-Jul-20.91488745)
0.00052998 TDB
period 2148.941319269863
5.88
3.3731e-05
9.235e-08
d
yr
n .1675243510708406 2.6295e-09 deg/d
Q 3.393375893332419 3.5509e-08 au
  Orbit Determination Parameters
   # obs. used (total)      431  
   data-arc span      7972 days (21.83 yr)  
   first obs. used      1998-12-11  
   last obs. used      2020-10-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56502  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:53:19  

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 15.20   n/a E2021B55  

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

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