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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09203596852016988 4.4103e-08  
a 3.097530660318299 3.1354e-08 au
q 2.812446425974983 1.4182e-07 au
i 5.362953730694295 5.9816e-06 deg
node 167.7972380856839 5.1998e-05 deg
peri 311.6368680454565 6.2949e-05 deg
M 50.27196197538952 3.2959e-05 deg
tp 2458722.435733730367
(2019-Aug-26.93573373)
0.00018289 TDB
period 1991.231929759835
5.45
3.0234e-05
8.278e-08
d
yr
n .1807926011127292 2.7451e-09 deg/d
Q 3.382614894661616 3.424e-08 au
  Orbit Determination Parameters
   # obs. used (total)      263  
   data-arc span      5864 days (16.05 yr)  
   first obs. used      2004-03-29  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63854  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:51:58  

Additional Information
 Earth MOID = 1.83191 au 
 Jupiter MOID = 1.68978 au 
 T_jup = 3.210 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457163.5 (2015-May-21.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09334578546342535 4.4167e-08  
q 2.807590225303759 1.4222e-07 au
tp 2456732.970213257588
(2014-Mar-16.47021326)
0.00018662 TDB
node 167.8193845667572 5.2005e-05 deg
peri 311.9744937973506 6.264e-05 deg
i 5.36300587253447 5.9823e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      263  
   data-arc span      5864 days (16.05 yr)  
   first obs. used      2004-03-29  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63854  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:51:58  

Additional Information
 Jupiter MOID = 1.68978 au 
 T_jup = 3.210 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.950751620626411E-15 -6.157196350016041E-15 1.611940021239071E-12 -7.734715313200326E-16 2.887065148856999E-13 -1.691458996934255E-15
q -6.157196350016041E-15 2.022714523942168E-14 -6.625190234474579E-12 3.274642314320877E-15 -1.169470414622033E-12 5.919657655237864E-15
tp 1.611940021239071E-12 -6.625190234474579E-12 3.482806728535671E-8 7.052174812547664E-12 6.540555799599695E-9 4.280123766344319E-12
node -7.734715313200326E-16 3.274642314320877E-15 7.052174812547664E-12 2.704566378049482E-9 -2.69058368280012E-9 3.057438224740044E-11
peri 2.887065148856999E-13 -1.169470414622033E-12 6.540555799599695E-9 -2.69058368280012E-9 3.923718296085226E-9 -2.955930995444427E-11
i -1.691458996934255E-15 5.919657655237864E-15 4.280123766344319E-12 3.057438224740044E-11 -2.955930995444427E-11 3.578736269648131E-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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