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(2018 RB1)
Classification: Apollo [NEO]          SPK-ID: 3827174
[ 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 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2823588063876081 0.00014826  
a 1.119459120333123 0.00011275 au
q .8033699793161404 8.5122e-05 au
i 5.043471553288176 0.0028905 deg
node 166.8659034545423 7.7569e-05 deg
peri 266.7002224742102 0.0007135 deg
M 274.4598616108265 0.088859 deg
tp 2459303.296477492441
(2021-Mar-29.79647749)		 0.12231 TDB
period 432.6241761372079
1.18		 0.065358
0.0001789		 d
yr
n .8321310270136754 0.00012571 deg/d
Q 1.435548261350105 0.00014458 au
   Orbit Determination Parameters
   # obs. used (total)      41  
   data-arc span      4 days  
   first obs. used      2018-09-06  
   last obs. used      2018-09-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .34648  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Sep-10 06:55:17  

Additional Information
 Earth MOID = .00172105 au 
 Jupiter MOID = 3.81839 au 
 T_jup = 5.535 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458368.5 (2018-Sep-07.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2816093323717893 0.0001492  
q .7991213111853951 7.9881e-05 au
tp 2458438.785450037460
(2018-Nov-16.28545004)		 0.0099805 TDB
node 166.9631716276629 0.00020165 deg
peri 267.8210067691635 0.0016402 deg
i 5.127543442295948 0.0028043 deg
   Orbit Determination Parameters
   # obs. used (total)      41  
   data-arc span      4 days  
   first obs. used      2018-09-06  
   last obs. used      2018-09-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .34648  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Sep-10 06:55:17  

Additional Information
 Jupiter MOID = 3.81839 au 
 T_jup = 5.535 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.226094712654155E-8 -1.191389767945483E-8 -1.488252251390373E-6 -3.002039662608798E-8 -2.286326670341525E-7 4.183306243503294E-7
q -1.191389767945483E-8 6.38090375220995E-9 7.957730926616599E-7 1.60690264599812E-8 1.210989660504794E-7 -2.239812008006383E-7
tp -1.488252251390373E-6 7.957730926616599E-7 9.961083199126347E-5 2.006673952771477E-6 1.548250846228432E-5 -2.795256993820237E-5
node -3.002039662608798E-8 1.60690264599812E-8 2.006673952771477E-6 4.066162292969367E-8 3.075463397537356E-7 -5.644837762451695E-7
peri -2.286326670341525E-7 1.210989660504794E-7 1.548250846228432E-5 3.075463397537356E-7 2.690265503192078E-6 -4.270661004690745E-6
i 4.183306243503294E-7 -2.239812008006383E-7 -2.795256993820237E-5 -5.644837762451695E-7 -4.270661004690745E-6 7.864238332875846E-6

[ 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 27.9   .58105 MPO452092 autocmod 2.6n

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