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28241 (1999 AC22)
Classification: Main-belt Asteroid          SPK-ID: 2028241
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05477584144032459 4.3331e-08  
a 2.618719888072885 1.6993e-08 au
q 2.475277302707181 1.1177e-07 au
i 5.238726494951681 5.3522e-06 deg
node 60.00024820908619 5.9351e-05 deg
peri 40.8305103490409 8.6147e-05 deg
M 89.52290165685321 5.9679e-05 deg
tp 2457215.586054306802
(2015-Jul-12.08605431)
0.00025726 JED
period 1547.861138155406
4.24
1.5066e-05
4.125e-08
d
yr
n .2325790028096537 2.2638e-09 deg/d
Q 2.76216247343859 1.7924e-08 au
  Orbit Determination Parameters
   # obs. used (total)      967  
   data-arc span      10533 days (28.84 yr)  
   first obs. used      1987-06-02  
   last obs. used      2016-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54097  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:51:13  

Additional Information
 Earth MOID = 1.49325 au 
 Jupiter MOID = 2.32328 au 
 T_jup = 3.398 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6 mag n/a MPO358893  

28241 (1999 AC22)          Discovered 1999-Jan-10 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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