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379157 (2009 QB11)
Classification: Main-belt Asteroid          SPK-ID: 2379157
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2112188898441946 6.3704e-08  
a 2.406884117247456 2.4798e-08 au
q 1.898504726018824 1.5694e-07 au
i 7.435356061043098 5.5232e-06 deg
node 169.863289048664 6.1196e-05 deg
peri 113.14257288681 6.3549e-05 deg
M 359.8237419674509 1.8664e-05 deg
tp 2459001.167771094138
(2020-May-31.66777109)
7.0717e-05 TDB
period 1363.895820308502
3.73
2.1078e-05
5.771e-08
d
yr
n .2639497787437833 4.0792e-09 deg/d
Q 2.915263508476087 3.0036e-08 au
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      8031 days (21.99 yr)  
   first obs. used      1997-03-02  
   last obs. used      2019-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54685  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:09:03  

Additional Information
 Earth MOID = .897194 au 
 Jupiter MOID = 2.28708 au 
 T_jup = 3.480 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457340.5 (2015-Nov-14.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2103756882218846 6.3819e-08  
q 1.900767791732996 1.5703e-07 au
tp 2457637.281107621341
(2016-Sep-05.78110762)
6.4891e-05 TDB
node 169.8916548441464 6.1191e-05 deg
peri 113.0263571398881 6.3563e-05 deg
i 7.434559451894724 5.5235e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      8031 days (21.99 yr)  
   first obs. used      1997-03-02  
   last obs. used      2019-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54685  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:09:03  

Additional Information
 Jupiter MOID = 2.28708 au 
 T_jup = 3.480 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.072852967039922E-15 -9.94425436483361E-15 -2.61172874380398E-12 1.422244467651994E-14 -6.450507614553725E-13 -1.775503979066542E-14
q -9.94425436483361E-15 2.465958314487138E-14 6.463605757902652E-12 -2.675408328747809E-14 1.559707162221665E-12 4.467515317332087E-14
tp -2.61172874380398E-12 6.463605757902652E-12 4.210830292823844E-9 -1.349923929845328E-11 1.183116212029297E-9 1.876713958333899E-11
node 1.422244467651994E-14 -2.675408328747809E-14 -1.349923929845328E-11 3.744398649312246E-9 -3.718375700025546E-9 1.672619388113029E-10
peri -6.450507614553725E-13 1.559707162221665E-12 1.183116212029297E-9 -3.718375700025546E-9 4.040280769759858E-9 -1.610823167720359E-10
i -1.775503979066542E-14 4.467515317332087E-14 1.876713958333899E-11 1.672619388113029E-10 -1.610823167720359E-10 3.050959974267418E-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 17.0   n/a MPO434345  

379157 (2009 QB11)          Discovered 2009-Aug-16 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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