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212973 (2009 BN146)
Classification: Main-belt Asteroid          SPK-ID: 2212973
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1132788177972875 5.1566e-08  
a 2.345593083071341 1.2735e-08 au
q 2.079887071587525 1.1792e-07 au
i 1.647247288148934 6.9764e-06 deg
node 212.5146175407429 0.00015103 deg
peri 304.8906727390205 0.00015469 deg
M 51.54159881989145 3.0343e-05 deg
tp 2458812.640647658333
(2019-Nov-25.14064766)
0.00011053 TDB
period 1312.131722559216
3.59
1.0686e-05
2.926e-08
d
yr
n .2743626983561122 2.2344e-09 deg/d
Q 2.611299094555158 1.4177e-08 au
  Orbit Determination Parameters
   # obs. used (total)      204  
   data-arc span      6599 days (18.07 yr)  
   first obs. used      2002-04-04  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61643  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:51:58  

Additional Information
 Earth MOID = 1.08958 au 
 Jupiter MOID = 2.37302 au 
 T_jup = 3.552 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457513.5 (2016-May-05.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1140097345166096 5.1635e-08  
q 2.078716205107386 1.1833e-07 au
tp 2457501.069881567440
(2016-Apr-22.56988157)
0.00010967 TDB
node 212.5324053389015 0.00015114 deg
peri 305.1011638352699 0.00015473 deg
i 1.646244081655125 6.9757e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      204  
   data-arc span      6599 days (18.07 yr)  
   first obs. used      2002-04-04  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61643  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:51:58  

Additional Information
 Jupiter MOID = 2.37302 au 
 T_jup = 3.552 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.666174378608463E-15 -6.084458202757525E-15 1.636353675498194E-12 6.729372478943689E-15 4.207510709003111E-13 -2.248571675788115E-15
q -6.084458202757525E-15 1.400132239895138E-14 -3.937111735699053E-12 -1.572375971053735E-14 -1.019388589056162E-12 5.107318538432135E-15
tp 1.636353675498194E-12 -3.937111735699053E-12 1.202792766374055E-8 9.831402577599941E-12 3.642579801335297E-9 1.044110466240667E-12
node 6.729372478943689E-15 -1.572375971053735E-14 9.831402577599941E-12 2.284198688442312E-8 -2.282935392153964E-8 -1.2433695056017E-10
peri 4.207510709003111E-13 -1.019388589056162E-12 3.642579801335297E-9 -2.282935392153964E-8 2.394163481554361E-8 1.246923593813062E-10
i -2.248571675788115E-15 5.107318538432135E-15 1.044110466240667E-12 -1.2433695056017E-10 1.246923593813062E-10 4.865988340424295E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.8   n/a MPO459952  

212973 (2009 BN146)          Discovered 2009-Jan-30 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

Alternate Designations
 2009 BN146 = 2004 XO138 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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