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JPL Small-Body Database Browser
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359094 (2009 AC21)
Classification: Main-belt Asteroid          SPK-ID: 2359094
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2609709311151925 1.7313e-07  
a 2.55250707873013 4.9071e-08 au
q 1.886376929715808 4.7103e-07 au
i 10.67473870096068 2.4865e-05 deg
node 329.9293751543374 4.7514e-05 deg
peri 264.8094233793218 9.4732e-05 deg
M 239.1545970756909 8.9531e-05 deg
tp 2459500.507470324098
(2021-Oct-13.00747032)
0.00038313 TDB
period 1489.528645366998
4.08
4.2953e-05
1.176e-07
d
yr
n .2416871948852661 6.9695e-09 deg/d
Q 3.218637227744452 6.1877e-08 au
  Orbit Determination Parameters
   # obs. used (total)      147  
   data-arc span      4950 days (13.55 yr)  
   first obs. used      2005-03-18  
   last obs. used      2018-10-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56576  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:46:52  

Additional Information
 Earth MOID = .911888 au 
 Jupiter MOID = 1.955 au 
 T_jup = 3.367 
[ 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 MPO455591  

359094 (2009 AC21)          Discovered 2009-Jan-02 by Spacewatch at Kitt Peak
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

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