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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1569347005054214 5.9443e-08  
a 2.465194319020833 1.6351e-08 au
q 2.078319786877632 1.3969e-07 au
i 7.57967551112548 7.4621e-06 deg
node 166.5525049643482 2.8697e-05 deg
peri 137.6200116572103 3.9096e-05 deg
M 103.0528975093036 2.68e-05 deg
tp 2458195.800310967737
(2018-Mar-18.30031097)
0.0001027 TDB
period 1413.758288925952
3.87
1.4066e-05
3.851e-08
d
yr
n .2546404168378004 2.5335e-09 deg/d
Q 2.852068851164034 1.8917e-08 au
  Orbit Determination Parameters
   # obs. used (total)      475  
   data-arc span      9310 days (25.49 yr)  
   first obs. used      1994-05-09  
   last obs. used      2019-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55765  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 18:27:01  

Additional Information
 Earth MOID = 1.07004 au 
 Jupiter MOID = 2.41467 au 
 T_jup = 3.458 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456909.5 (2014-Sep-09.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .158367371535421 5.9794e-08  
q 2.074164872790428 1.4079e-07 au
tp 2456782.262587653162
(2014-May-04.76258765)
9.3506e-05 TDB
node 166.5751875783614 2.8677e-05 deg
peri 137.5635619753104 3.8906e-05 deg
i 7.582680797502159 7.4665e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      475  
   data-arc span      9310 days (25.49 yr)  
   first obs. used      1994-05-09  
   last obs. used      2019-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55765  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 18:27:01  

Additional Information
 Jupiter MOID = 2.41467 au 
 T_jup = 3.458 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.57532761462604E-15 -8.389515522916726E-15 3.889704519655812E-12 -2.306747338547969E-14 1.043170325857744E-12 -5.305318215740867E-15
q -8.389515522916726E-15 1.982115720189988E-14 -8.93026839603515E-12 5.40979060401682E-14 -2.391505749231675E-12 1.306049549810357E-14
tp 3.889704519655812E-12 -8.93026839603515E-12 8.743355296200872E-9 -3.182239383990097E-11 2.463089160108928E-9 -6.657113753661337E-12
node -2.306747338547969E-14 5.40979060401682E-14 -3.182239383990097E-11 8.223626124050543E-10 -8.231238768141896E-10 3.531646966855324E-11
peri 1.043170325857744E-12 -2.391505749231675E-12 2.463089160108928E-9 -8.231238768141896E-10 1.513674744480203E-9 -3.675777448076034E-11
i -5.305318215740867E-15 1.306049549810357E-14 -6.657113753661337E-12 3.531646966855324E-11 -3.675777448076034E-11 5.574826394575496E-11

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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