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(2021 BM)
Classification: Apollo [NEO]          SPK-ID: 54106296
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .180920805969338 0.0001132  
a 1.191021537655318 0.00015336 au
q .9755409611358775 9.2135e-06 au
i 1.264305413106762 0.00074673 deg
node 181.1577278368117 0.00055478 deg
peri 337.9672916158881 0.0028795 deg
M 305.4621249955369 0.0089785 deg
tp 2459272.423955044401
(2021-Feb-26.92395504)
0.0020538 TDB
period 474.7640756788803
1.30
0.091697
0.0002511
d
yr
n .7582713571687675 0.00014645 deg/d
Q 1.406502114174758 0.0001811 au
  Orbit Determination Parameters
   # obs. used (total)      72  
   data-arc span      26 days  
   first obs. used      2021-01-16  
   last obs. used      2021-02-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .35639  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-11 05:25:35  

Additional Information
 Earth MOID = .00396372 au 
 Jupiter MOID = 3.56912 au 
 T_jup = 5.310 
[ hide covariance matrix ]
Orbital Elements at Epoch 2459234.5 (2021-Jan-20.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1813949793645085 0.00011263  
q .975430039443924 9.0583e-06 au
tp 2459272.394822755951
(2021-Feb-26.89482276)
0.002092 TDB
node 180.8876436735445 0.00078664 deg
peri 338.2218864522636 0.0024013 deg
i 1.266062204841477 0.00074433 deg
  Orbit Determination Parameters
   # obs. used (total)      72  
   data-arc span      26 days  
   first obs. used      2021-01-16  
   last obs. used      2021-02-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .35639  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-11 05:25:35  

Additional Information
 Jupiter MOID = 3.56912 au 
 T_jup = 5.310 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.268538315860217E-8 -1.020154165569024E-9 2.353550819930416E-7 6.310010148748586E-8 2.655160382267671E-7 8.383296774099532E-8
q -1.020154165569024E-9 8.205257554023553E-11 -1.893802647317217E-8 -5.128822778841158E-9 -2.130971448170129E-8 -6.741624134060444E-9
tp 2.353550819930416E-7 -1.893802647317217E-8 4.37658785908898E-6 1.222207716212235E-6 4.885091407375811E-6 1.555189939947096E-6
node 6.310010148748586E-8 -5.128822778841158E-9 1.222207716212235E-6 6.188054581073027E-7 1.069199385493571E-6 4.1566209953176E-7
peri 2.655160382267671E-7 -2.130971448170129E-8 4.885091407375811E-6 1.069199385493571E-6 5.766470080139476E-6 1.755848700372833E-6
i 8.383296774099532E-8 -6.741624134060444E-9 1.555189939947096E-6 4.1566209953176E-7 1.755848700372833E-6 5.540295180132684E-7

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 25.2   .34159 E2021D54 autocmod 2.8

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