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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2614802742565682 5.7114e-08  
a 2.451380225400448 1.6702e-08 AU
q 1.810392651755611 1.4202e-07 AU
i 3.428406374517426 6.3143e-06 deg
node 131.4461755995945 0.00015417 deg
peri 301.0196203052533 0.00015509 deg
M 266.0339527893462 1.8445e-05 deg
tp 2457366.417265602076
(2015-Dec-09.91726560)
7.3108e-05 JED
period 1401.891635618486
3.84
1.4327e-05
3.923e-08
d
yr
n .2567958826868779 2.6244e-09 deg/d
Q 3.092367799045285 2.1069e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      882  
   data-arc span      10866 days (29.75 yr)  
   first obs. used      1984-09-19  
   last obs. used      2014-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5603  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:26:40  

Additional Information
 Earth MOID = .827667 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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