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(2021 BP2)
Classification: Apollo [NEO]          SPK-ID: 54106578
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 .5695581951460627 0.0014314  
a 1.81163191565075 0.0052281 au
q .7798021115037048 0.0003428 au
i 2.01561840903828 0.0041785 deg
node 301.0756093743047 0.0011886 deg
peri 244.6716714193164 0.0029672 deg
M 342.1192918674452 0.090377 deg
tp 2459277.736991647707
(2021-Mar-04.23699165)
0.032103 TDB
period 890.6424105306992
2.44
3.8554
0.01056
d
yr
n .4042026246936635 0.0017497 deg/d
Q 2.843461719797795 0.0082059 au
  Orbit Determination Parameters
   # obs. used (total)      14  
   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      .40705  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-20 09:42:03  

Additional Information
 Earth MOID = 2.95527E-5 au 
 Jupiter MOID = 2.12159 au 
 T_jup = 3.842 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 2.04887017363518E-6 -4.906080933497303E-7 -4.594673761734527E-5 1.70043815659806E-6 3.955304322669397E-6 5.980569672224015E-6
q -4.906080933497303E-7 1.175146397453735E-7 1.099931299350665E-5 -4.070873909506677E-7 -9.536872290033873E-7 -1.432262063699238E-6
tp -4.594673761734527E-5 1.099931299350665E-5 .001030581265756993 -3.813948536217792E-5 -8.820755353975227E-5 -.0001341019716052456
node 1.70043815659806E-6 -4.070873909506677E-7 -3.813948536217792E-5 1.412684516776468E-6 3.265991520962822E-6 4.962018296819268E-6
peri 3.955304322669397E-6 -9.536872290033873E-7 -8.820755353975227E-5 3.265991520962822E-6 8.804124926769458E-6 1.158131889753828E-5
i 5.980569672224015E-6 -1.432262063699238E-6 -.0001341019716052456 4.962018296819268E-6 1.158131889753828E-5 1.74595049351709E-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 27.92   .35491 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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