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(2021 BH2)
Classification: Apollo [NEO]          SPK-ID: 54106572
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 2459233.5 (2021-Jan-19.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3220279686064591 0.0013876  
a 1.183653821477137 0.0019961 au
q .8024841858135825 0.00031075 au
i 20.10029318403243 0.075424 deg
node 300.3546325057891 0.0042232 deg
peri 268.3954706356307 0.075825 deg
M 307.3728116183199 0.21071 deg
tp 2459302.261153146872
(2021-Mar-28.76115315)
0.10137 TDB
period 470.3655257686342
1.29
1.1898
0.003257
d
yr
n .7653622135927509 0.001936 deg/d
Q 1.564823457140692 0.0026389 au
  Orbit Determination Parameters
   # obs. used (total)      19  
   data-arc span      2 days  
   first obs. used      2021-01-18  
   last obs. used      2021-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .43445  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-20 09:12:02  

Additional Information
 Earth MOID = .0387387 au 
 Jupiter MOID = 3.54627 au 
 T_jup = 5.244 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 1.925421778428278E-6 -4.067016826614567E-7 -.0001401983605296575 5.843020720237352E-6 -.0001016249310558519 .000104387405154205
q -4.067016826614567E-7 9.65668651729489E-8 2.876817878954019E-5 -1.201031159229292E-6 1.943863049967705E-5 -2.149291239095749E-5
tp -.0001401983605296575 2.876817878954019E-5 .01027563120612955 -.0004280775078225921 .007560657838934818 -.007644884283256418
node 5.843020720237352E-6 -1.201031159229292E-6 -.0004280775078225921 1.783583455905743E-5 -.0003146984166608123 .0003185264604521922
peri -.0001016249310558519 1.943863049967705E-5 .007560657838934818 -.0003146984166608123 .005749466465332208 -.005615324021366756
i .000104387405154205 -2.149291239095749E-5 -.007644884283256418 .0003185264604521922 -.005615324021366756 .005688776927285429

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 25.80   .33009 E2021-BA4 autocmod 2.8

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