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JPL Small-Body Database Browser
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(2021 BO1)
Classification: Apollo [NEO]          SPK-ID: 54106347
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5672428853046979 0.00041919  
a 2.133001246603491 0.0019819 au
q .9230714651216091 3.645e-05 au
i .4420152933157613 0.00075281 deg
node 133.1618903279231 0.031643 deg
peri 20.79823646088822 0.02959 deg
M 43.15325169953377 0.059346 deg
tp 2459260.105732934872
(2021-Feb-14.60573294)
0.0025279 TDB
period 1137.850201540584
3.12
1.5859
0.004342
d
yr
n .3163861108541182 0.00044097 deg/d
Q 3.342931028085372 0.0031062 au
  Orbit Determination Parameters
   # obs. used (total)      21  
   data-arc span      1 day  
   first obs. used      2021-01-18  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .32049  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:24:08  

Additional Information
 Earth MOID = .00167841 au 
 Jupiter MOID = 1.66005 au 
 T_jup = 3.494 
[ hide covariance matrix ]
Orbital Elements at Epoch 2459233.5 (2021-Jan-19.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5709119413617946 0.00041443  
q .9231411006184791 3.6538e-05 au
tp 2459260.036637490258
(2021-Feb-14.53663749)
0.0023866 TDB
node 236.5351818069873 0.11923 deg
peri 277.355456573907 0.11938 deg
i .1126753055125883 0.00015113 deg
  Orbit Determination Parameters
   # obs. used (total)      21  
   data-arc span      1 day  
   first obs. used      2021-01-18  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .32049  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:24:08  

Additional Information
 Jupiter MOID = 1.66005 au 
 T_jup = 3.494 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.717515829048408E-7 -1.513868852327195E-8 -9.879694506171302E-7 -1.794518879107542E-6 2.789529797173308E-6 2.806553008756073E-8
q -1.513868852327195E-8 1.335035837528469E-9 8.701938300432456E-8 2.230346486588836E-7 -3.108607183300652E-7 -2.400127608790036E-9
tp -9.879694506171302E-7 8.701938300432456E-8 5.695668494349529E-6 1.111276383718234E-5 -1.68180461978826E-5 -1.605209121456614E-7
node -1.794518879107542E-6 2.230346486588836E-7 1.111276383718234E-5 .01421461492675358 -.0142298924445165 1.580259010697832E-5
peri 2.789529797173308E-6 -3.108607183300652E-7 -1.68180461978826E-5 -.0142298924445165 .01425096383904098 -1.564551644284548E-5
i 2.806553008756073E-8 -2.400127608790036E-9 -1.605209121456614E-7 1.580259010697832E-5 -1.564551644284548E-5 2.284046641495632E-8

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 29.2   .33623 E2021B69 autocmod 2.8

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