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(2018 BU1)
Classification: Apollo [NEO]          SPK-ID: 3797752
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .462555727875136 1.903e-07  
a 1.593085580804963 1.8713e-08 au
q .8561947204083397 3.0011e-07 au
i 6.378517608367578 2.7295e-05 deg
node 302.9884849464693 1.0235e-05 deg
peri 238.0274519907544 6e-05 deg
M 233.8269678725136 2.5251e-05 deg
tp 2459653.907458259766
(2022-Mar-15.40745826)
5.5492e-05 TDB
period 734.4412939199593
2.01
1.294e-05
3.543e-08
d
yr
n .490168517184756 8.6365e-09 deg/d
Q 2.329976441201587 2.7368e-08 au
  Orbit Determination Parameters
   # obs. used (total)      109  
   data-arc span      745 days (2.04 yr)  
   first obs. used      2018-01-09  
   last obs. used      2020-01-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42007  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:20:14  

Additional Information
 Earth MOID = .00731775 au 
 Jupiter MOID = 2.65743 au 
 T_jup = 4.241 
[ 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 24.6   n/a MPO545073  

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