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JPL Small-Body Database Browser
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49459 (1999 AJ2)
Classification: Main-belt Asteroid          SPK-ID: 2049459
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04671871920261312 4.7897e-08  
a 3.052230886927369 2.1472e-08 au
q 2.909634569179466 1.4804e-07 au
i 9.997713593465441 4.9506e-06 deg
node 78.42648520046026 2.7522e-05 deg
peri 162.044861680639 5.7734e-05 deg
M 175.776917269519 5.1717e-05 deg
tp 2457649.492714389458
(2016-Sep-17.99271439)
0.00027835 TDB
period 1947.710928931868
5.33
2.0552e-05
5.627e-08
d
yr
n .1848323561019527 1.9504e-09 deg/d
Q 3.194827204675271 2.2475e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1050  
   data-arc span      7637 days (20.91 yr)  
   first obs. used      1999-01-09  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55488  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:20:00  

Additional Information
 Earth MOID = 1.89766 au 
 Jupiter MOID = 1.82738 au 
 T_jup = 3.212 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9   n/a MPO337653  

49459 (1999 AJ2)          Discovered 1999-Jan-09 by Kobayashi, T. at Oizumi
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 AJ2 = 2000 GO90 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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