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120872 (1998 RD23)
Classification: Main-belt Asteroid          SPK-ID: 2120872
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .202022640992807 3.7858e-08  
a 2.198692870623371 1.065e-08 au
q 1.754507130167981 8.648e-08 au
i 3.881312468392253 4.2313e-06 deg
node 85.4160686586395 6.035e-05 deg
peri 221.9689073395411 6.1439e-05 deg
M 261.1279857372971 1.4066e-05 deg
tp 2459327.551511246266
(2021-Apr-23.05151125)
4.8242e-05 TDB
period 1190.817694234736
3.26
8.6518e-06
2.369e-08
d
yr
n .3023132774587712 2.1964e-09 deg/d
Q 2.64287861107876 1.2801e-08 au
  Orbit Determination Parameters
   # obs. used (total)      438  
   data-arc span      7849 days (21.49 yr)  
   first obs. used      1998-07-31  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61318  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 06:23:57  

Additional Information
 Earth MOID = .74195 au 
 Jupiter MOID = 2.60752 au 
 T_jup = 3.637 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO453679  

120872 (1998 RD23)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

Alternate Designations
 1998 RD23 = 2001 LX2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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