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JPL Small-Body Database Browser
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(2021 BC)
Classification: Aten [NEO]          SPK-ID: 54106085
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4346408937577065 0.00016863  
a .7061582727605196 6.762e-05 au
q .3992330099534891 0.00015731 au
i 21.24888486921397 0.016246 deg
node 300.5063524195737 7.5291e-05 deg
peri 345.9724955640589 0.00084967 deg
M 119.3238577246526 0.050245 deg
tp 2459324.658351591894
(2021-Apr-20.15835159)
0.019932 TDB
period 216.7462058308461
0.59
0.031133
8.524e-05
d
yr
n 1.660928728233206 0.00023857 deg/d
Q 1.01308353556755 9.701e-05 au
  Orbit Determination Parameters
   # obs. used (total)      59  
   data-arc span      16 days  
   first obs. used      2021-01-06  
   last obs. used      2021-01-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .41437  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:24:00  

Additional Information
 Earth MOID = .00603624 au 
 Jupiter MOID = 4.16126 au 
 T_jup = 7.987 
[ hide covariance matrix ]
Orbital Elements at Epoch 2459231.5 (2021-Jan-17.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4355237141712398 0.00016725  
q .3981344271979503 0.00015545 au
tp 2459324.759691201865
(2021-Apr-20.25969120)
0.020092 TDB
node 300.5175071568783 9.4756e-05 deg
peri 346.1871478769967 0.0012102 deg
i 21.28575547921262 0.016225 deg
  Orbit Determination Parameters
   # obs. used (total)      59  
   data-arc span      16 days  
   first obs. used      2021-01-06  
   last obs. used      2021-01-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .41437  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:24:00  

Additional Information
 Jupiter MOID = 4.16126 au 
 T_jup = 7.987 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.797125750261435E-8 -2.599887893689009E-8 -3.360218687672598E-6 -1.583191332262194E-8 -2.021963564915188E-7 2.713594149370644E-6
q -2.599887893689009E-8 2.416558580246797E-8 3.123271625447782E-6 1.471567895550338E-8 1.87935131525593E-7 -2.522244941505491E-6
tp -3.360218687672598E-6 3.123271625447782E-6 .0004036690771764338 1.901793970113932E-6 2.429260672678865E-5 -.0003259880707469378
node -1.583191332262194E-8 1.471567895550338E-8 1.901793970113932E-6 8.978752714301054E-9 1.143099627001861E-7 -1.53589462547835E-6
peri -2.021963564915188E-7 1.87935131525593E-7 2.429260672678865E-5 1.143099627001861E-7 1.464520642442138E-6 -1.961694052642082E-5
i 2.713594149370644E-6 -2.522244941505491E-6 -.0003259880707469378 -1.53589462547835E-6 -1.961694052642082E-5 .0002632581307909072

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 24.3   .38976 MPO624182 autocmod 2.8

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