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JPL Small-Body Database Browser
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212947 (2009 AC28)
Classification: Main-belt Asteroid          SPK-ID: 2212947
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06975770592361624 5.9749e-08  
a 2.709023685363831 3.0461e-08 au
q 2.520048407780109 1.5817e-07 au
i 9.67939994603887 5.6938e-06 deg
node 158.5341212384663 3.9079e-05 deg
peri 24.90281567300581 6.1215e-05 deg
M 97.30106329401535 4.7865e-05 deg
tp 2458160.317557888344
(2018-Feb-10.81755789)
0.00021511 TDB
period 1628.611998631085
4.46
2.7469e-05
7.521e-08
d
yr
n .2210471249767255 3.7283e-09 deg/d
Q 2.897998962947552 3.2586e-08 au
  Orbit Determination Parameters
   # obs. used (total)      235  
   data-arc span      8088 days (22.14 yr)  
   first obs. used      1996-04-21  
   last obs. used      2018-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58936  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:46:20  

Additional Information
 Earth MOID = 1.52743 au 
 Jupiter MOID = 2.06924 au 
 T_jup = 3.340 
[ 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 16.3   n/a MPO446191  

212947 (2009 AC28)          Discovered 2009-Jan-03 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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