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227811 (2007 BW43)
Classification: Main-belt Asteroid          SPK-ID: 2227811
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1516979556169848 1.0655e-07  
a 2.31134114801724 8.9429e-09 au
q 1.96071542112961 2.4844e-07 au
i 1.513631823327199 5.5229e-06 deg
node 149.4474026675994 0.00016134 deg
peri 343.0813099507108 0.00016645 deg
M 344.4937665080691 2.8145e-05 deg
tp 2459255.783855328868
(2021-Feb-10.28385533)
0.0001003 TDB
period 1283.495952047241
3.51
7.449e-06
2.039e-08
d
yr
n .2804839387500846 1.6278e-09 deg/d
Q 2.66196687490487 1.03e-08 au
  Orbit Determination Parameters
   # obs. used (total)      258  
   data-arc span      7696 days (21.07 yr)  
   first obs. used      2000-02-08  
   last obs. used      2021-03-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51562  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:41:15  

Additional Information
 Earth MOID = .975075 au 
 Jupiter MOID = 2.37439 au 
 T_jup = 3.568 
[ 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 18.0   n/a MPO494250  
rotation period rot_per 7.29 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:
[Chang, C.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) Ap. J. Supp. Ser. 241, A6.]

227811 (2007 BW43)          Discovered 2007-Jan-24 by CSS at Catalina
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2007 BW43 = 2000 DB89 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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