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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 
[ 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 27.92   .35491 E2021-BA4 autocmod 2.8

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2021-Jan-20 12:20 < 00:01 Earth 0.00828209332329625 0.00822443268434056 0.00833975159708256 14.6719326117803 14.6499889143982 2459235.013950237 0.128312400955364 2866.74811974955 7.40860259519203 0.0116998497292655 315.377642831497 T 1 CATAB v2.0f-lin.ifort 2021-Jan-20 09:42:03 2021-Jan-20 09:42
2074-Jun-05 11:07 5_18:07 Earth 0.0312983629318386 0.0239790236548508 0.088151660514682 13.8659290375063 13.8597880538338 2478728.963072685 8286.96374876844 3227356.63205132 117.175567185932 -50.0210680029396 37614.5143784897 T 1 CATAB v2.0f-lin.ifort 2021-Jan-20 09:42:03 2021-Jan-20 09:42
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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