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(2021 BR1)
Classification: Apollo [NEO]          SPK-ID: 54106532
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02424165358729098 0.00072295  
a 1.039192526367583 0.00012762 au
q 1.014000781132878 0.00082698 au
i 8.303034174898542 0.01492 deg
node 296.3082762307408 0.001257 deg
peri 283.0291181057669 0.05533 deg
M 231.8502536957146 0.062336 deg
tp 2459338.239245262781
(2021-May-03.73924526)
0.073106 TDB
period 386.9389501315222
1.06
0.071279
0.0001952
d
yr
n .9303793269652344 0.00017139 deg/d
Q 1.064384271602288 0.00013072 au
  Orbit Determination Parameters
   # obs. used (total)      22  
   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      6  
   norm. resid. RMS      .44508  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:24:08  

Additional Information
 Earth MOID = .0148014 au 
 Jupiter MOID = 3.90997 au 
 T_jup = 5.891 
[ 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 .0245319600715565 0.00072169  
q 1.013540233622891 0.00082453 au
tp 2459338.356361481387
(2021-May-03.85636148)
0.078125 TDB
node 296.3003800762221 0.0012452 deg
peri 283.2000523613114 0.051306 deg
i 8.307421314831883 0.014902 deg
  Orbit Determination Parameters
   # obs. used (total)      22  
   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      6  
   norm. resid. RMS      .44508  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:24:08  

Additional Information
 Jupiter MOID = 3.90997 au 
 T_jup = 5.891 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.208334253612642E-7 -5.903049617309867E-7 -4.847686167417446E-5 -4.955347794062201E-7 2.155270795869341E-5 2.06623145662475E-6
q -5.903049617309867E-7 6.798466844076842E-7 5.437952938499091E-5 6.670233397375037E-7 -2.65453786886132E-5 -8.428535161957677E-7
tp -4.847686167417446E-5 5.437952938499091E-5 .006103559769279425 4.735648607238435E-5 -.0004567206995048293 -.000176569497964389
node -4.955347794062201E-7 6.670233397375037E-7 4.735648607238435E-5 1.550478056925197E-6 -3.498803248035375E-5 1.313467328553942E-5
peri 2.155270795869341E-5 -2.65453786886132E-5 -.0004567206995048293 -3.498803248035375E-5 .00263234935192885 -.0001219080144733186
i 2.06623145662475E-6 -8.428535161957677E-7 -.000176569497964389 1.313467328553942E-5 -.0001219080144733186 .0002220703726679528

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 26.5   .29367 E2021B84 autocmod 2.8

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