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259221 (2003 BA21)
Classification: Apollo [NEO]          SPK-ID: 2259221
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8332243249636382 9.8278e-08  
a 1.100221001649251 7.7729e-09 au
q .183490100239236 1.0841e-07 au
i 23.71274106554995 2.1084e-05 deg
node 308.878029734467 1.296e-05 deg
peri 18.13525251102621 1.4541e-05 deg
M 263.2019551464907 3.1806e-05 deg
tp 2459313.839791052837
(2021-Apr-09.33979105)
3.8282e-05 TDB
period 421.520133394949
1.15
4.467e-06
1.223e-08
d
yr
n .8540517320027823 9.0506e-09 deg/d
Q 2.016951903059266 1.4249e-08 au
  Orbit Determination Parameters
   # obs. used (total)      161  
   data-arc span      6200 days (16.97 yr)  
   first obs. used      2002-02-06  
   last obs. used      2019-01-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49601  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 02:47:25  

Additional Information
 Earth MOID = .131429 au 
 Jupiter MOID = 3.37615 au 
 T_jup = 5.195 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 19.1   n/a MPO437204  
rotation period rot_per 9.09 h n/a LCDB (Rev. 2020-October); 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:
[Warner, Brian D. (2014) Minor Planet Bull. 41, 213-224.]

259221 (2003 BA21)          Discovered 2003-Jan-27 by LINEAR at Socorro
Reference: 20110119/Numbers.arcLast Updated: 2011-01-25

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