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JPL Small-Body Database Browser
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(2018 BD)
Classification: Apollo [NEO]          SPK-ID: 3797701
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 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2871360554331138 0.00036561  
a 1.055414443092735 0.00030453 au
q .7523669030559509 0.000602 au
i 2.375255080415854 0.051203 deg
node 297.8721693477383 0.26976 deg
peri 274.2482552373914 0.5322 deg
M 6.53418647676639 0.47185 deg
tp 2459389.311769411339
(2021-Jun-23.81176941)
0.52219 TDB
period 396.0344598550063
1.08
0.17141
0.0004693
d
yr
n .9090118070326531 0.00039343 deg/d
Q 1.35846198312952 0.00039197 au
  Orbit Determination Parameters
   # obs. used (total)      30  
   first obs. used      2018-01-18  
   last obs. used      2018-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .25433  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:20:06  

Additional Information
 Earth MOID = .000804771 au 
 Jupiter MOID = 3.60626 au 
 T_jup = 5.792 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458136.5 (2018-Jan-18.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3259893218373957 0.000482  
q .8311452226877692 0.00022 au
tp 2458188.624437346197
(2018-Mar-11.12443735)
0.010629 TDB
node 298.1834851420965 2.3212e-05 deg
peri 248.4874603445135 0.012865 deg
i 2.967350501072821 0.0044753 deg
  Orbit Determination Parameters
   # obs. used (total)      30  
   first obs. used      2018-01-18  
   last obs. used      2018-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .25433  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:20:06  

Additional Information
 Jupiter MOID = 3.60626 au 
 T_jup = 5.792 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.323249642240604E-7 -1.058951770057823E-7 -5.061132769676147E-6 -6.128909311595378E-9 6.038462816662052E-6 2.156577425877311E-6
q -1.058951770057823E-7 4.840185107640873E-8 2.287791296554661E-6 2.994458913768092E-9 -2.786276544045388E-6 -9.822055529780659E-7
tp -5.061132769676147E-6 2.287791296554661E-6 .0001129759187734736 1.049894172409452E-7 -.0001267178106062421 -4.709080791777479E-5
node -6.128909311595378E-9 2.994458913768092E-9 1.049894172409452E-7 5.38810169967495E-10 -2.100585109076353E-7 -5.597551466729625E-8
peri 6.038462816662052E-6 -2.786276544045388E-6 -.0001267178106062421 -2.100585109076353E-7 .0001655177963690439 5.585682807678402E-5
i 2.156577425877311E-6 -9.822055529780659E-7 -4.709080791777479E-5 -5.597551466729625E-8 5.585682807678402E-5 2.002812359787208E-5

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 30.1   n/a MPO431474  

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