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74949 (1999 TK187)
Classification: Main-belt Asteroid          SPK-ID: 2074949
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1174307614574198 4.1874e-08  
a 2.233271779307947 1.0019e-08 au
q 1.971016973722448 9.338e-08 au
i 6.922171253162776 5.0066e-06 deg
node 341.055066762762 4.0691e-05 deg
peri 336.3479794080058 4.6589e-05 deg
M 121.2817086687544 2.335e-05 deg
tp 2458589.819955913607
(2019-Apr-16.31995591)
7.8056e-05 TDB
period 1219.019895859948
3.34
8.2029e-06
2.246e-08
d
yr
n .2953192160543374 1.9872e-09 deg/d
Q 2.495526584893446 1.1195e-08 au
  Orbit Determination Parameters
   # obs. used (total)      451  
   data-arc span      7893 days (21.61 yr)  
   first obs. used      1998-04-19  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56407  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 06:50:13  

Additional Information
 Earth MOID = .960259 au 
 Jupiter MOID = 2.77363 au 
 T_jup = 3.622 
[ 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 16.3   n/a MPO449472  

74949 (1999 TK187)          Discovered 1999-Oct-12 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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