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11643 (1997 AM22)
Classification: Main-belt Asteroid          SPK-ID: 2011643
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2614778445207666 4.8777e-08  
a 2.451574887874025 1.3074e-08 au
q 1.810542370511485 1.1725e-07 au
i 3.428220970906111 4.3617e-06 deg
node 131.4445748039741 0.00010324 deg
peri 301.0957829472555 0.0001042 deg
M 60.05395027499524 1.0477e-05 deg
tp 2457366.613447556235
(2015-Dec-10.11344756)
4.1398e-05 JED
period 1402.058623857311
3.84
1.1215e-05
3.07e-08
d
yr
n .2567652977373915 2.0539e-09 deg/d
Q 3.092607405236565 1.6492e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1160  
   data-arc span      11523 days (31.55 yr)  
   first obs. used      1984-09-19  
   last obs. used      2016-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50929  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:12:23  

Additional Information
 Earth MOID = .826546 au 
 Jupiter MOID = 2.21336 au 
 T_jup = 3.445 
[ 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 MPO358743  

11643 (1997 AM22)          Discovered 1997-Jan-08 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 AM22 = 1984 ST4 = 1988 VD12 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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