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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05379435845284428 6.172e-08  
a 2.617680340201123 2.5699e-08 AU
q 2.47686390566538 1.5898e-07 AU
i 5.238055943441212 7.149e-06 deg
node 60.05456361459957 7.1484e-05 deg
peri 40.64275137904245 9.8382e-05 deg
M 263.5513713100871 6.7374e-05 deg
tp 2457214.944995908506
(2015-Jul-11.44499591)
0.00029074 JED
period 1546.939552730689
4.24
2.2781e-05
6.237e-08
d
yr
n .2327175611771777 3.427e-09 deg/d
Q 2.758496774736865 2.7081e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      636  
   data-arc span      9544 days (26.13 yr)  
   first obs. used      1987-06-02  
   last obs. used      2013-07-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57144  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 01:59:57  

Additional Information
 Earth MOID = 1.4959 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 14.4 mag n/a MPO267809  

28241 (1999 AC22)          Discovered 1999-Jan-10 by Beijing Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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