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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2021166019739244 3.7776e-08  
a 2.198724328577408 1.0453e-08 au
q 1.754325638607944 8.6376e-08 au
i 3.881311329797946 4.0049e-06 deg
node 85.4154779650266 6.0313e-05 deg
peri 221.9752630707093 6.1338e-05 deg
M 321.5943026653637 1.4336e-05 deg
tp 2459327.542126296210
(2021-Apr-23.04212630)
4.8103e-05 TDB
period 1190.843250888955
3.26
8.492e-06
2.325e-08
d
yr
n .3023067895218475 2.1558e-09 deg/d
Q 2.643123018546873 1.2566e-08 au
  Orbit Determination Parameters
   # obs. used (total)      486  
   data-arc span      7908 days (21.65 yr)  
   first obs. used      1998-07-31  
   last obs. used      2020-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59452  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:54:07  

Additional Information
 Earth MOID = .739784 au 
 Jupiter MOID = 2.60685 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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