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(2021 BH2)
Classification: Apollo [NEO]          SPK-ID: 54106572
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 .3220279686064591 0.0013876  
a 1.183653821477137 0.0019961 au
q .8024841858135825 0.00031075 au
i 20.10029318403243 0.075424 deg
node 300.3546325057891 0.0042232 deg
peri 268.3954706356307 0.075825 deg
M 307.3728116183199 0.21071 deg
tp 2459302.261153146872
(2021-Mar-28.76115315)
0.10137 TDB
period 470.3655257686342
1.29
1.1898
0.003257
d
yr
n .7653622135927509 0.001936 deg/d
Q 1.564823457140692 0.0026389 au
  Orbit Determination Parameters
   # obs. used (total)      19  
   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      .43445  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-20 09:12:02  

Additional Information
 Earth MOID = .0387387 au 
 Jupiter MOID = 3.54627 au 
 T_jup = 5.244 
[ 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 25.80   .33009 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
2017-Jul-22 02:05 7_08:41 Earth 0.0923017306258557 0.0400928399641785 0.269040781380159 15.6541628804186 15.6523187219106 2457956.586638365 10601.2133948031 9125851.06687157 18276.4819953522 25.9763185099114 324.554532173126 T 1 CATAB v2.0f-lin.ifort 2021-Jan-20 09:12:03 2021-Jan-20 09:12
2021-Jan-25 09:36 < 00:01 Earth 0.0493097350968591 0.0487688074601633 0.0498506568506646 14.2587275353116 14.2549373831882 2459239.899970630 0.389456618585595 26960.3517280318 1152.31854326899 0.573237095424163 201.907901775167 T 1 CATAB v2.0f-lin.ifort 2021-Jan-20 09:12:03 2021-Jan-20 09:12
2026-Jul-25 10:31 9_08:12 Earth 0.164075190704198 0.0360731859316188 0.397365935547269 17.4054866035193 17.4045535750185 2461246.938398318 13451.5909486427 11753136.8765281 15566.5571457534 12.7866172409768 333.963082454028 T 1 CATAB v2.0f-lin.ifort 2021-Jan-20 09:12:03 2021-Jan-20 09:12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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