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JPL Small-Body Database Browser
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154416 (2003 BF21)
Classification: Main-belt Asteroid          SPK-ID: 2154416
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1802119782384926 6.6865e-08  
a 2.321856988158685 9.3766e-09 au
q 1.903430547135741 1.5784e-07 au
i 5.315974437571906 4.4357e-06 deg
node 130.3470546499968 6.4303e-05 deg
peri 239.6796730173893 6.5644e-05 deg
M 64.13336397575419 1.0668e-05 deg
tp 2458770.285249734887
(2019-Oct-13.78524973)
3.8406e-05 TDB
period 1292.265132494416
3.54
7.8281e-06
2.143e-08
d
yr
n .2785806031190396 1.6875e-09 deg/d
Q 2.74028342918163 1.1066e-08 au
  Orbit Determination Parameters
   # obs. used (total)      551  
   data-arc span      7750 days (21.22 yr)  
   first obs. used      1998-10-19  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50907  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 20:03:43  

Additional Information
 Earth MOID = .909079 au 
 Jupiter MOID = 2.72995 au 
 T_jup = 3.550 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO396261  
rotation period rot_per 5.243 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

154416 (2003 BF21)          Discovered 2003-Jan-27 by LONEOS at Anderson Mesa
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

Alternate Designations
 2003 BF21 = 2005 SW164 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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