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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05381005772817155 5.4604e-08  
a 2.617316892271306 2.0075e-08 AU
q 2.476478919205269 1.4712e-07 AU
i 5.238262049961557 6.9265e-06 deg
node 60.0525918255191 6.1255e-05 deg
peri 40.80139042288444 9.0057e-05 deg
M 309.9485553449879 6.4888e-05 deg
tp 2457215.528985291177
(2015-Jul-12.02898529)
0.00027888 JED
period 1546.617390135046
4.23
1.7794e-05
4.872e-08
d
yr
n .2327660365751906 2.678e-09 deg/d
Q 2.758154865337343 2.1155e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      758  
   data-arc span      10092 days (27.63 yr)  
   first obs. used      1987-06-02  
   last obs. used      2015-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54943  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 14:17:39  

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 14.5 mag n/a MPO313639  

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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