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312508 (2009 BL178)
Classification: Main-belt Asteroid          SPK-ID: 2312508
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1745346299096078 6.8724e-08  
a 2.366809222163615 1.9391e-08 au
q 1.953719050506642 1.5881e-07 au
i 1.444354023341369 6.2027e-06 deg
node 270.6240758347194 0.0002319 deg
peri 198.4742912477699 0.00023376 deg
M 77.67753620276372 2.2901e-05 deg
tp 2458713.530165424301
(2019-Aug-18.03016542)
8.3575e-05 TDB
period 1329.974475214829
3.64
1.6344e-05
4.475e-08
d
yr
n .2706818865391005 3.3265e-09 deg/d
Q 2.779899393820588 2.2775e-08 au
  Orbit Determination Parameters
   # obs. used (total)      186  
   data-arc span      5611 days (15.36 yr)  
   first obs. used      2004-12-14  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62013  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:27:12  

Additional Information
 Earth MOID = .970518 au 
 Jupiter MOID = 2.33985 au 
 T_jup = 3.526 
[ 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 MPO455303  

312508 (2009 BL178)          Discovered 2009-Jan-20 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2009 BL178 = 2007 RX224 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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