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212972 (2009 BQ123)
Classification: Main-belt Asteroid          SPK-ID: 2212972
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09234710834896938 4.8596e-08  
a 3.098715154679558 3.9683e-08 au
q 2.812557770547771 1.6557e-07 au
i 5.361987521423135 6.1031e-06 deg
node 167.8042051675222 6.083e-05 deg
peri 311.7718254657046 7.0614e-05 deg
M 337.8480538258815 3.5196e-05 deg
tp 2458723.097128389382
(2019-Aug-27.59712839)
0.00019502 TDB
period 1992.374208264514
5.45
3.8273e-05
1.048e-07
d
yr
n .180688948143724 3.471e-09 deg/d
Q 3.384872538811344 4.3348e-08 au
  Orbit Determination Parameters
   # obs. used (total)      223  
   data-arc span      5392 days (14.76 yr)  
   first obs. used      2004-03-29  
   last obs. used      2019-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66508  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:48:05  

Additional Information
 Earth MOID = 1.83232 au 
 Jupiter MOID = 1.68886 au 
 T_jup = 3.209 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456831.5 (2014-Jun-23.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .093925421879697 4.8538e-08  
q 2.808130621598376 1.6607e-07 au
tp 2456734.597826387003
(2014-Mar-18.09782639)
0.00019128 TDB
node 167.822690156204 6.0856e-05 deg
peri 312.3140845680886 7.0332e-05 deg
i 5.360509627409303 6.102e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      223  
   data-arc span      5392 days (14.76 yr)  
   first obs. used      2004-03-29  
   last obs. used      2019-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66508  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:48:05  

Additional Information
 Jupiter MOID = 1.68886 au 
 T_jup = 3.209 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.3559328877183E-15 -7.889227815758339E-15 6.723423036663473E-13 -2.66358266910531E-15 1.362245766438511E-13 -2.656122870663958E-15
q -7.889227815758339E-15 2.757853812509452E-14 -2.648198431599736E-12 8.292744057561868E-15 -5.221117132924163E-13 9.914495439668302E-15
tp 6.723423036663473E-13 -2.648198431599736E-12 3.658618913073818E-8 3.141014372115182E-11 6.788969168893273E-9 8.111558312779518E-12
node -2.66358266910531E-15 8.292744057561868E-15 3.141014372115182E-11 3.703465272088576E-9 -3.680666816110471E-9 6.526395571821512E-11
peri 1.362245766438511E-13 -5.221117132924163E-13 6.788969168893273E-9 -3.680666816110471E-9 4.946589168855583E-9 -6.343897253948328E-11
i -2.656122870663958E-15 9.914495439668302E-15 8.111558312779518E-12 6.526395571821512E-11 -6.343897253948328E-11 3.72347461846097E-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 MPO418140  

212972 (2009 BQ123)          Discovered 2009-Jan-31 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

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