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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2615602793736342 5.7633e-08  
a 2.451381058717394 1.6068e-08 AU
q 1.810197144148037 1.4335e-07 AU
i 3.428233838797997 6.9488e-06 deg
node 131.4472468633387 0.00015869 deg
peri 301.0093072749514 0.00015972 deg
M 214.696002224882 1.9293e-05 deg
tp 2457366.334897142002
(2015-Dec-09.83489714)
7.6988e-05 JED
period 1401.892350452609
3.84
1.3784e-05
3.774e-08
d
yr
n .2567957517449695 2.5248e-09 deg/d
Q 3.092564973286751 2.0271e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      879  
   data-arc span      10469 days (28.66 yr)  
   first obs. used      1984-09-19  
   last obs. used      2013-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56993  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 16:54:50  

Additional Information
 Earth MOID = .82696 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 14.3 mag n/a PDS3 (MPC 35869)  

11643 (1997 AM22)          Discovered 1997-Jan-08 by Beijing Schmidt CCD Asteroid Program at Xinglong (327)
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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