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JPL Small-Body Database Browser
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46509 (4149 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2046509
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1938078964822486 3.5645e-08  
a 2.356168882524501 1.0075e-08 au
q 1.899524747645497 8.6585e-08 au
i 2.938367278220488 4.5902e-06 deg
node 134.3158463173569 9.8867e-05 deg
peri 151.3459567221393 0.00010003 deg
M 245.3311059438201 1.7576e-05 deg
tp 2459021.276206642873
(2020-Jun-20.77620664)
6.5951e-05 TDB
period 1321.015918381665
3.62
8.4726e-06
2.32e-08
d
yr
n .2725175336577509 1.7479e-09 deg/d
Q 2.812813017403505 1.2027e-08 au
  Orbit Determination Parameters
   # obs. used (total)      694  
   data-arc span      15153 days (41.49 yr)  
   first obs. used      1977-10-07  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61274  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:37:59  

Additional Information
 Earth MOID = .883131 au 
 Jupiter MOID = 2.34762 au 
 T_jup = 3.527 
[ 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 15.8   n/a MPO436107  

46509 (4149 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 4149 T-3 = 1998 KR22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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