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243420 (2009 BA178)
Classification: Main-belt Asteroid          SPK-ID: 2243420
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1571104553937241 5.8051e-08  
a 2.465029269532965 1.6366e-08 au
q 2.077747398437782 1.3619e-07 au
i 7.580632358344693 6.7815e-06 deg
node 166.5388243653905 2.7821e-05 deg
peri 137.6992746340907 3.6236e-05 deg
M 204.8185710618488 2.5167e-05 deg
tp 2459609.852775118922
(2022-Jan-30.35277512)
0.00010322 TDB
period 1413.61631055893
3.87
1.4078e-05
3.854e-08
d
yr
n .2546659919746254 2.5362e-09 deg/d
Q 2.852311140628148 1.8937e-08 au
  Orbit Determination Parameters
   # obs. used (total)      525  
   data-arc span      9477 days (25.95 yr)  
   first obs. used      1994-05-09  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54308  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 16:44:48  

Additional Information
 Earth MOID = 1.07026 au 
 Jupiter MOID = 2.41648 au 
 T_jup = 3.458 
[ 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 16.0   n/a MPO503159  
diameter diameter 1.606 km 0.139 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.299   0.088 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243420 (2009 BA178)          Discovered 2009-Jan-31 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

[ show close-approach data ]
Alternate Designations
 2009 BA178 = 2005 EO48 = 2006 OJ9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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