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74958 (1999 TL197)
Classification: Main-belt Asteroid          SPK-ID: 2074958
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1171494763651823 6.9562e-08  
a 2.330791272126701 1.3403e-08 au
q 2.057740295080521 1.6453e-07 au
i 7.331046946297502 7.5368e-06 deg
node 9.940096118130594 3.0542e-05 deg
peri 12.31752870515348 3.6983e-05 deg
M 188.7398186794193 2.3211e-05 deg
tp 2459218.811608638032
(2021-Jan-04.31160864)
8.7282e-05 TDB
period 1299.731072297669
3.56
1.1211e-05
3.069e-08
d
yr
n .2769803751506771 2.389e-09 deg/d
Q 2.603842249172882 1.4973e-08 au
  Orbit Determination Parameters
   # obs. used (total)      472  
   data-arc span      9165 days (25.09 yr)  
   first obs. used      1994-04-06  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64983  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:42:17  

Additional Information
 Earth MOID = 1.06013 au 
 Jupiter MOID = 2.85715 au 
 T_jup = 3.551 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456656.5 (2013-Dec-30.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1161475674357903 6.9333e-08  
q 2.060102892129366 1.6373e-07 au
tp 2456619.821333953800
(2013-Nov-23.32133395)
7.517e-05 TDB
node 9.995808134181486 3.0566e-05 deg
peri 12.46639995687913 3.7141e-05 deg
i 7.328158164740866 7.5327e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      472  
   data-arc span      9165 days (25.09 yr)  
   first obs. used      1994-04-06  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64983  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:42:17  

Additional Information
 Jupiter MOID = 2.85715 au 
 T_jup = 3.551 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.80708687882177E-15 -1.132252544348056E-14 -1.992407174154208E-12 4.227873466770579E-15 -6.274138109989814E-13 4.542854031488066E-15
q -1.132252544348056E-14 2.680613851205596E-14 5.061785260449431E-12 -1.026894792657818E-14 1.575863436619187E-12 -1.086742708566343E-14
tp -1.992407174154208E-12 5.061785260449431E-12 5.65052490737228E-9 -4.619475813992882E-12 1.590886355780695E-9 -7.036111324747523E-12
node 4.227873466770579E-15 -1.026894792657818E-14 -4.619475813992882E-12 9.342640308814534E-10 -9.273705882648863E-10 -1.947610818822035E-11
peri -6.274138109989814E-13 1.575863436619187E-12 1.590886355780695E-9 -9.273705882648863E-10 1.379458587683769E-9 1.736109315614854E-11
i 4.542854031488066E-15 -1.086742708566343E-14 -7.036111324747523E-12 -1.947610818822035E-11 1.736109315614854E-11 5.67419265025803E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO436308  

74958 (1999 TL197)          Discovered 1999-Oct-12 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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