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305709 (2009 BN178)
Classification: Main-belt Asteroid          SPK-ID: 2305709
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1783793279898547 1.3354e-07  
a 2.529007795961054 2.5957e-08 au
q 2.077885084836418 3.5446e-07 au
i 7.509547709664296 3.2576e-05 deg
node 179.663470022745 6.0379e-05 deg
peri 270.4015359919325 0.00023754 deg
M 359.0377475530863 0.00022757 deg
tp 2459004.426541594845
(2020-Jun-03.92654159)
0.00092867 TDB
period 1469.00637008303
4.02
2.2616e-05
6.192e-08
d
yr
n .2450636071643803 3.7728e-09 deg/d
Q 2.98013050708569 3.0587e-08 au
  Orbit Determination Parameters
   # obs. used (total)      171  
   data-arc span      8804 days (24.10 yr)  
   first obs. used      1995-10-21  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59026  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 21:14:00  

Additional Information
 Earth MOID = 1.11032 au 
 Jupiter MOID = 2.26912 au 
 T_jup = 3.418 
[ 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 17.5   n/a MPO503303  

305709 (2009 BN178)          Discovered 2009-Jan-20 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2009 BN178 = 1995 UQ62 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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