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JPL Small-Body Database Browser
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74859 (1999 TW89)
Classification: Main-belt Asteroid          SPK-ID: 2074859
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1535123406287734 4.6364e-08  
a 2.272602404343512 9.461e-09 au
q 1.923729889934161 1.0892e-07 au
i 5.1100840850055 4.4508e-06 deg
node 46.21918090314961 5.2422e-05 deg
peri 345.910231794224 5.4833e-05 deg
M 237.9704817044519 1.7135e-05 deg
tp 2459024.675925159923
(2020-Jun-24.17592516)
6.1132e-05 TDB
period 1251.363892855286
3.43
7.8143e-06
2.139e-08
d
yr
n .2876861015851864 1.7965e-09 deg/d
Q 2.621474918752862 1.0913e-08 au
  Orbit Determination Parameters
   # obs. used (total)      749  
   data-arc span      6855 days (18.77 yr)  
   first obs. used      1999-09-05  
   last obs. used      2018-06-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55003  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:23:16  

Additional Information
 Earth MOID = .929598 au 
 Jupiter MOID = 2.80388 au 
 T_jup = 3.590 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO385288  

74859 (1999 TW89)          Discovered 1999-Oct-02 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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