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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05381003239160403 6.0235e-08  
a 2.61731687796038 2.4593e-08 AU
q 2.47647897197824 1.5642e-07 AU
i 5.238261884441044 7.0864e-06 deg
node 60.05256297925906 7.0606e-05 deg
peri 40.80140803169265 9.7572e-05 deg
M 309.9485723815476 6.7093e-05 deg
tp 2457215.528910335802
(2015-Jul-12.02891034)
0.0002888 JED
period 1546.617377450189
4.23
2.1798e-05
5.968e-08
d
yr
n .2327660384842626 3.2807e-09 deg/d
Q 2.75815478394252 2.5916e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      639  
   data-arc span      9954 days (27.25 yr)  
   first obs. used      1987-06-02  
   last obs. used      2014-09-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57119  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 14:23:58  

Additional Information
 Earth MOID = 1.49584 AU 
 T_jup = 3.399 
[ 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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