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(2021 BB1)
Classification: Apollo [NEO]          SPK-ID: 54106337
[ 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 2459232.5 (2021-Jan-18.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .746919455503652 0.00070481  
a 1.163070278853299 0.0015158 au
q .2943504594597123 0.00043614 au
i 4.914294038625588 0.0087778 deg
node 302.1739185396513 0.0029864 deg
peri 306.437002794257 0.012797 deg
M 322.1068401730403 0.10625 deg
tp 2459280.724272486515
(2021-Mar-07.22427249)		 0.040946 TDB
period 458.1496548301523
1.25		 0.89566
0.002452		 d
yr
n .7857694449938223 0.0015361 deg/d
Q 2.031790098246887 0.002648 au
   Orbit Determination Parameters
   # obs. used (total)      65  
   data-arc span      3 days  
   first obs. used      2021-01-16  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .51848  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-21 05:19:42  

Additional Information
 Earth MOID = .00485861 au 
 Jupiter MOID = 3.02861 au 
 T_jup = 5.100 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 4.967603220257184E-7 -3.073876166926549E-7 -2.885927672921052E-5 -2.102866761276161E-6 9.014643394925557E-6 6.186011499467618E-6
q -3.073876166926549E-7 1.902139353373234E-7 1.785759646734815E-5 1.301027518019268E-6 -5.579203010015345E-6 -3.827631432312798E-6
tp -2.885927672921052E-5 1.785759646734815E-5 .001676579755104885 .0001221682165442469 -.0005236938354698352 -.0003593781159625175
node -2.102866761276161E-6 1.301027518019268E-6 .0001221682165442469 8.91829174752863E-6 -3.814264491692148E-5 -2.620275799254097E-5
peri 9.014643394925557E-6 -5.579203010015345E-6 -.0005236938354698352 -3.814264491692148E-5 .0001637603879975598 .0001122418210252144
i 6.186011499467618E-6 -3.827631432312798E-6 -.0003593781159625175 -2.620275799254097E-5 .0001122418210252144 7.704922277102493E-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 25.83   .46448 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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