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305644 (2009 BA44)
Classification: Main-belt Asteroid          SPK-ID: 2305644
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09198923394209638 5.3299e-08  
a 2.521095863808369 2.3311e-08 au
q 2.28918218660205 1.291e-07 au
i 3.774249130632556 5.2408e-06 deg
node 159.027953597988 9.5997e-05 deg
peri 132.6486356455893 0.00010565 deg
M 157.7385360924347 5.0506e-05 deg
tp 2458359.854511804975
(2018-Aug-29.35451180)
0.00020211 TDB
period 1462.118144770017
4.00
2.0279e-05
5.552e-08
d
yr
n .2462181331157927 3.4149e-09 deg/d
Q 2.753009541014689 2.5455e-08 au
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      8818 days (24.14 yr)  
   first obs. used      1995-10-28  
   last obs. used      2019-12-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57848  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:11:15  

Additional Information
 Earth MOID = 1.27512 au 
 Jupiter MOID = 2.38191 au 
 T_jup = 3.447 
[ 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 16.8   n/a MPO503303  

305644 (2009 BA44)          Discovered 2009-Jan-16 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2009 BA44 = 2007 VN138 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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