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541093 (2018 RJ4)
Classification: Mars-crossing Asteroid          SPK-ID: 2541093
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3352674899286403 7.0215e-08  
a 2.409480663267521 2.0051e-08 au
q 1.601660129262224 1.6468e-07 au
i 23.64960750638949 1.1598e-05 deg
node 163.0381582895093 1.6837e-05 deg
peri 226.444416905651 2.3471e-05 deg
M 210.0705040714921 1.2317e-05 deg
tp 2459769.442235611661
(2022-Jul-08.94223561)
4.917e-05 TDB
period 1366.10347117997
3.74
1.7052e-05
4.669e-08
d
yr
n .2635232305566507 3.2894e-09 deg/d
Q 3.217301197272818 2.6773e-08 au
  Orbit Determination Parameters
   # obs. used (total)      128  
   data-arc span      5606 days (15.35 yr)  
   first obs. used      2003-09-02  
   last obs. used      2019-01-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54972  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:22:06  

Additional Information
 Earth MOID = .66365 au 
 Jupiter MOID = 2.42731 au 
 T_jup = 3.334 
[ 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 17.5   .53161 E2018S67 autocmod 2.6n

541093 (2018 RJ4)          Discovered 2003-Sep-02 by LINEAR at Socorro
Reference: Last Updated: 2019-05-29

Alternate Designations
 2018 RJ4 = 2003 RD2 = 2018 RD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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