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(2018 RB)
Classification: Apollo [NEO, PHA]          SPK-ID: 3827151
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7320350040428548 1.1077e-07  
a 1.950575413480747 1.1824e-07 au
q .5226859327874752 2.4763e-07 au
i 4.557127406361812 8.185e-06 deg
node 349.249116883772 6.4908e-05 deg
peri 244.2836889737621 8.4491e-05 deg
M 324.2603071891953 4.0077e-06 deg
tp 2459299.284967216756
(2021-Mar-25.78496722)
1.0496e-05 TDB
period 995.0445961102687
2.72
9.0479e-05
2.477e-07
d
yr
n .3617928295950522 3.2898e-08 deg/d
Q 3.378464894174019 2.048e-07 au
  Orbit Determination Parameters
   # obs. used (total)      253  
   data-arc span      888 days (2.43 yr)  
   first obs. used      2018-09-01  
   last obs. used      2021-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .40009  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-15 06:48:32  

Additional Information
 Earth MOID = .0239954 au 
 Jupiter MOID = 1.66891 au 
 T_jup = 3.499 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 21.8   .37909 E2018T49 autocmod 2.6n

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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