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JPL Small-Body Database Browser
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442870 (2013 BL9)
Classification: Main-belt Asteroid          SPK-ID: 2442870
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1985798804906143 1.4009e-07  
a 3.143914780646473 1.2206e-07 au
q 2.519596559233021 4.8394e-07 au
i 15.67848512090703 1.7672e-05 deg
node 308.1550702111344 2.3544e-05 deg
peri 323.6922983430408 3.9609e-05 deg
M 331.9597105526248 2.9741e-05 deg
tp 2459159.093201657318
(2020-Nov-05.59320166)
0.00017191 TDB
period 2036.125650692199
5.57
0.00011858
3.247e-07
d
yr
n .1768063772869886 1.0297e-08 deg/d
Q 3.768233002059925 1.463e-07 au
  Orbit Determination Parameters
   # obs. used (total)      89  
   data-arc span      3076 days (8.42 yr)  
   first obs. used      2010-09-10  
   last obs. used      2019-02-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52495  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:35:27  

Additional Information
 Earth MOID = 1.52114 au 
 Jupiter MOID = 1.53308 au 
 T_jup = 3.122 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457231.5 (2015-Jul-28.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1973041183362699 1.3998e-07  
q 2.525598538101236 4.8353e-07 au
tp 2457120.854540188022
(2015-Apr-08.35454019)
0.00016386 TDB
node 308.1860864826534 2.355e-05 deg
peri 323.5541909319467 3.9823e-05 deg
i 15.67136943335481 1.7664e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      89  
   data-arc span      3076 days (8.42 yr)  
   first obs. used      2010-09-10  
   last obs. used      2019-02-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52495  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:35:27  

Additional Information
 Jupiter MOID = 1.53308 au 
 T_jup = 3.122 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.959543787551503E-14 -6.643529324825347E-14 1.797800575227691E-11 -2.601800222175002E-14 3.432548686567912E-12 -7.616539044668754E-14
q -6.643529324825347E-14 2.33806053941414E-13 -6.115151844279161E-11 9.115864068875883E-14 -1.157249743126342E-11 2.901878332478617E-13
tp 1.797800575227691E-11 -6.115151844279161E-11 2.684930031523685E-8 -3.152511819134354E-11 5.272762784159801E-9 -8.826394945715896E-11
node -2.601800222175002E-14 9.115864068875883E-14 -3.152511819134354E-11 5.545834112449851E-10 -5.3888561088931E-10 -5.129224616167207E-11
peri 3.432548686567912E-12 -1.157249743126342E-11 5.272762784159801E-9 -5.3888561088931E-10 1.585843045108409E-9 3.299323203994589E-11
i -7.616539044668754E-14 2.901878332478617E-13 -8.826394945715896E-11 -5.129224616167207E-11 3.299323203994589E-11 3.120227057195908E-10

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 15.9   n/a MPO472464  

442870 (2013 BL9)          Discovered 2010-Sep-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 2013 BL9 = 2010 RQ135 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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