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305670 (2009 BL90)
Classification: Main-belt Asteroid          SPK-ID: 2305670
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08924240894124143 4.12e-08  
a 2.28424509917635 1.6414e-08 au
q 2.080393563913628 9.3323e-08 au
i 6.7522951622522 5.4028e-06 deg
node 134.0483552288006 3.9413e-05 deg
peri 272.2138719359875 5.0112e-05 deg
M 179.65129594365 3.1797e-05 deg
tp 2458371.225210247975
(2018-Sep-09.72521025)
0.00010946 TDB
period 1260.992430479243
3.45
1.3592e-05
3.721e-08
d
yr
n .2854894219017487 3.0772e-09 deg/d
Q 2.488096634439072 1.7879e-08 au
  Orbit Determination Parameters
   # obs. used (total)      254  
   data-arc span      6684 days (18.30 yr)  
   first obs. used      2002-01-08  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61767  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:00:46  

Additional Information
 Earth MOID = 1.10271 au 
 Jupiter MOID = 2.78967 au 
 T_jup = 3.589 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457334.5 (2015-Nov-08.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08831226210991774 4.1066e-08  
q 2.082985079448081 9.2876e-08 au
tp 2457109.927339325530
(2015-Mar-28.42733933)
0.00010843 TDB
node 134.0852705008612 3.9383e-05 deg
peri 272.2668281856023 5.0344e-05 deg
i 6.753913914115471 5.4047e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      254  
   data-arc span      6684 days (18.30 yr)  
   first obs. used      2002-01-08  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61767  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:00:46  

Additional Information
 Jupiter MOID = 2.78967 au 
 T_jup = 3.589 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.686427422265243E-15 -3.764821086170294E-15 -9.881911635487476E-13 -3.465579538395797E-15 -2.903950173897422E-13 1.308090342889967E-15
q -3.764821086170294E-15 8.626028667100367E-15 2.45925792188226E-12 8.924744503478025E-15 7.280537964931723E-13 -2.446891443048359E-15
tp -9.881911635487476E-13 2.45925792188226E-12 1.175666730742818E-8 -3.020089179573415E-11 3.41865965793403E-9 -3.606046463620995E-12
node -3.465579538395797E-15 8.924744503478025E-15 -3.020089179573415E-11 1.55102240329805E-9 -1.548283740835185E-9 5.564676313750089E-11
peri -2.903950173897422E-13 7.280537964931723E-13 3.41865965793403E-9 -1.548283740835185E-9 2.5345457260636E-9 -5.620986766961458E-11
i 1.308090342889967E-15 -2.446891443048359E-15 -3.606046463620995E-12 5.564676313750089E-11 -5.620986766961458E-11 2.921131013416682E-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 17.1   n/a MPO471209  

305670 (2009 BL90)          Discovered 2009-Jan-25 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

Alternate Designations
 2009 BL90 = 2002 CP280 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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