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(2021 BK1)
Classification: Apollo [NEO]          SPK-ID: 54106344
[ 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 2459232.5 (2021-Jan-18.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7212270675618285 0.00076874  
a 1.103968971419173 0.0017198 au
q .3077566674832749 0.00036924 au
i 25.58506583994226 0.053379 deg
node 300.3267674850411 0.00035253 deg
peri 309.7575640927998 0.0089516 deg
M 317.2936048266771 0.13992 deg
tp 2459282.760191750021
(2021-Mar-09.26019175)		 0.04722 TDB
period 423.6758676674731
1.16		 0.99005
0.002711		 d
yr
n .8497061727446561 0.0019856 deg/d
Q 1.900181275355072 0.0029602 au
   Orbit Determination Parameters
   # obs. used (total)      37  
   data-arc span      3 days  
   first obs. used      2021-01-17  
   last obs. used      2021-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .38065  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-20 05:20:00  

Additional Information
 Earth MOID = .000330476 au 
 Jupiter MOID = 3.34287 au 
 T_jup = 5.289 
[ 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 26.35   .56658 E2021B84 autocmod 2.8

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