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305628 (2009 BQ2)
Classification: Main-belt Asteroid          SPK-ID: 2305628
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2115452013198462 5.3375e-08  
a 2.363452391939334 1.0179e-08 au
q 1.863475379876655 1.2756e-07 au
i 5.12832558470714 5.6456e-06 deg
node 284.7048689403576 5.2039e-05 deg
peri 220.3879465511072 5.656e-05 deg
M 28.55069445979199 1.5049e-05 deg
tp 2458895.247386063617
(2020-Feb-15.74738606)
5.5645e-05 TDB
period 1327.146037391835
3.63
8.5735e-06
2.347e-08
d
yr
n .271258768709047 1.7524e-09 deg/d
Q 2.863429404002012 1.2332e-08 au
  Orbit Determination Parameters
   # obs. used (total)      317  
   data-arc span      6631 days (18.15 yr)  
   first obs. used      2002-02-26  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55175  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:00:46  

Additional Information
 Earth MOID = .87938 au 
 Jupiter MOID = 2.17509 au 
 T_jup = 3.514 
[ show covariance matrix ]

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 17.3   n/a MPO455251  

305628 (2009 BQ2)          Discovered 2009-Jan-19 by Lowe, A. at Mayhill
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1962-Nov-22 12:15 < 00:01 Thisb 0.0335729064541602 0.0335666286294605 0.0335791862417554 6.35570047856643 6.35570044661264 2437991.010279141 0.83068591061968 519.617187169303 68.465030722614 -53.6303720552982 59331.035465417 T 15 CATAB v2.0f-lin.ifort 2020-May-21 20:00:48 2020-May-21 20:00
2000-Dec-06 19:10 < 00:01 Thisb 0.0324057512784841 0.0324016551215022 0.0324098474366583 6.26511712441591 6.2651170908326 2451885.298431028 0.790013661445706 204.471035954396 68.7107979897324 3.0751343967623 23969.6424029106 T 15 CATAB v2.0f-lin.ifort 2020-May-21 20:00:48 2020-May-21 20:00
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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