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120997 (1998 XT96)
Classification: Main-belt Asteroid          SPK-ID: 2120997
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .18161984064026 4.6182e-08  
a 2.321822654956009 9.1897e-09 au
q 1.900133594367953 1.0861e-07 au
i 3.34716050353983 4.474e-06 deg
node 111.4689761424056 7.6389e-05 deg
peri 316.5803216750379 7.7772e-05 deg
M 105.8367088192723 1.1369e-05 deg
tp 2458820.594291783078
(2019-Dec-03.09429178)
4.128e-05 TDB
period 1292.236469594257
3.54
7.6719e-06
2.1e-08
d
yr
n .278586782272934 1.6539e-09 deg/d
Q 2.743511715544064 1.0859e-08 au
  Orbit Determination Parameters
   # obs. used (total)      378  
   data-arc span      7735 days (21.18 yr)  
   first obs. used      1998-12-11  
   last obs. used      2020-02-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53459  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:53:18  

Additional Information
 Earth MOID = .915375 au 
 Jupiter MOID = 2.54716 au 
 T_jup = 3.553 
[ 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 17.13   n/a E2021B55  

120997 (1998 XT96)          Discovered 1998-Dec-11 by Naranjo, O. A. at Merida
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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Alternate Designations
 1998 XT96 = 2001 UU18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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