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JPL Small-Body Database Browser
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(2021 BO1)
Classification: Apollo [NEO]          SPK-ID: 54106347
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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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 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5672428853046979 0.00041919  
a 2.133001246603491 0.0019819 au
q .9230714651216091 3.645e-05 au
i .4420152933157613 0.00075281 deg
node 133.1618903279231 0.031643 deg
peri 20.79823646088822 0.02959 deg
M 43.15325169953377 0.059346 deg
tp 2459260.105732934872
(2021-Feb-14.60573294)
0.0025279 TDB
period 1137.850201540584
3.12
1.5859
0.004342
d
yr
n .3163861108541182 0.00044097 deg/d
Q 3.342931028085372 0.0031062 au
  Orbit Determination Parameters
   # obs. used (total)      21  
   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      7  
   norm. resid. RMS      .32049  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:24:08  

Additional Information
 Earth MOID = .00167841 au 
 Jupiter MOID = 1.66005 au 
 T_jup = 3.494 
[ 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 29.2   .33623 E2021B69 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-19 21:40 < 00:01 Moon 0.0028931841188935 0.00289137364691345 0.00289499739174153 11.1011130682448 11.1000926078856 2459234.402466274 0.595686528916974 168.411852826628 4.36423573731105 -57.6041505575382 58028.56293888 T 2 CATAB v2.0g-lin.ifort 2021-Apr-15 23:24:09 2021-Apr-15 23:24
2021-Jan-20 02:17 < 00:01 Earth 0.00167766509823197 0.00167416701771319 0.00168116277370543 10.2421534754526 10.0858957931996 2459234.595123215 0.460329675662584 169.433887128431 3.87374207529288 -0.648318678340758 938.495004735315 T 2 CATAB v2.0g-lin.ifort 2021-Apr-15 23:24:09 2021-Apr-15 23:24
2024-May-06 22:25 4_09:14 Earth 0.453377254641539 0.373017446541116 0.533750759299213 23.6216301043442 23.6213813073948 2460437.434282612 6314.0785064102 4009486.29529815 893.307212240104 -1.77021027667163 2117.09723998836 T 2 CATAB v2.0g-lin.ifort 2021-Apr-15 23:24:09 2021-Apr-15 23:24
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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