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(2021 BM)
Classification: Apollo [NEO]          SPK-ID: 54106296
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1809208060675339 0.0001132  
a 1.191021537771788 0.00015336 au
q .975540961114322 9.2135e-06 au
i 1.264305386563618 0.00074673 deg
node 181.1577279467419 0.00055478 deg
peri 337.9672914797054 0.0028795 deg
M 305.4621249739842 0.0089785 deg
tp 2459272.423955083374
(2021-Feb-26.92395508)
0.0020538 TDB
period 474.7640757485209
1.30
0.091697
0.0002511
d
yr
n .7582713570575407 0.00014645 deg/d
Q 1.406502114429253 0.0001811 au
  Orbit Determination Parameters
   # obs. used (total)      72  
   data-arc span      26 days  
   first obs. used      2021-01-16  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .35639  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:24:02  

Additional Information
 Earth MOID = .00396372 au 
 Jupiter MOID = 3.56912 au 
 T_jup = 5.310 
[ hide covariance matrix ]
Orbital Elements at Epoch 2459234.5 (2021-Jan-20.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1813949794454078 0.00011263  
q .975430039426833 9.0583e-06 au
tp 2459272.394822795841
(2021-Feb-26.89482280)
0.002092 TDB
node 180.8876437774011 0.00078664 deg
peri 338.221886322623 0.0024013 deg
i 1.266062178281482 0.00074433 deg
  Orbit Determination Parameters
   # obs. used (total)      72  
   data-arc span      26 days  
   first obs. used      2021-01-16  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .35639  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:24:02  

Additional Information
 Jupiter MOID = 3.56912 au 
 T_jup = 5.310 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.268537813940297E-8 -1.020153800770404E-9 2.353550110129311E-7 6.310006170192044E-8 2.655159725299702E-7 8.383293516232362E-8
q -1.020153800770404E-9 8.205254932734737E-11 -1.893802148589094E-8 -5.128819774574292E-9 -2.130971000961293E-8 -6.741621770800669E-9
tp 2.353550110129311E-7 -1.893802148589094E-8 4.376586953175749E-6 1.222207089949888E-6 4.885090650393465E-6 1.555189481840463E-6
node 6.310006170192044E-8 -5.128819774574292E-9 1.222207089949888E-6 6.188052013733431E-7 1.069198735476825E-6 4.156618395397451E-7
peri 2.655159725299702E-7 -2.130971000961293E-8 4.885090650393465E-6 1.069198735476825E-6 5.766469540306733E-6 1.755848278593243E-6
i 8.383293516232362E-8 -6.741621770800669E-9 1.555189481840463E-6 4.156618395397451E-7 1.755848278593243E-6 5.540293066207275E-7

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 25.28   .34159 E2021-BA4 autocmod 2.8

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