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JPL Small-Body Database Browser
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74960 (1999 TR198)
Classification: Main-belt Asteroid          SPK-ID: 2074960
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 .2317009302978618 4.9464e-08  
a 2.77281254838995 1.7228e-08 au
q 2.130349301386413 1.3925e-07 au
i 13.75209633823251 6.1024e-06 deg
node 29.03088045754248 1.8884e-05 deg
peri 298.4628272571799 2.1592e-05 deg
M 140.2848659498048 1.0716e-05 deg
tp 2457943.315194448781
(2017-Jul-08.81519445)
4.9849e-05 TDB
period 1686.472224901948
4.62
1.5718e-05
4.303e-08
d
yr
n .2134633435904528 1.9895e-09 deg/d
Q 3.415275795393486 2.122e-08 au
  Orbit Determination Parameters
   # obs. used (total)      990  
   data-arc span      7066 days (19.35 yr)  
   first obs. used      1999-10-05  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5203  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:24:08  

Additional Information
 Earth MOID = 1.15855 au 
 Jupiter MOID = 2.13017 au 
 T_jup = 3.256 
[ 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 14.4   n/a MPO436308  

74960 (1999 TR198)          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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