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160621 (1999 TK120)
Classification: Main-belt Asteroid          SPK-ID: 2160621
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2128551799973917 8.3126e-08  
a 2.570456811945643 2.4639e-08 au
q 2.023321764563432 2.2396e-07 au
i 2.695952458341561 7.264e-06 deg
node 287.3111501748536 0.0001542 deg
peri 66.99064111023843 0.00015617 deg
M 17.36952098506523 3.4138e-05 deg
tp 2458927.872811080282
(2020-Mar-19.37281108)
0.00014179 TDB
period 1505.268224355723
4.12
2.1643e-05
5.926e-08
d
yr
n .239160034188648 3.4387e-09 deg/d
Q 3.117591859327855 2.9884e-08 au
  Orbit Determination Parameters
   # obs. used (total)      328  
   data-arc span      6790 days (18.59 yr)  
   first obs. used      1999-09-18  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56466  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 05:48:16  

Additional Information
 Earth MOID = 1.02023 au 
 Jupiter MOID = 2.33597 au 
 T_jup = 3.396 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455380.5 (2010-Jul-03.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2138092251321075 8.2605e-08  
q 2.021370259058692 2.2236e-07 au
tp 2455919.758224234712
(2011-Dec-24.25822423)
0.00010314 TDB
node 287.4971994072205 0.00015471 deg
peri 67.27374275782505 0.00015665 deg
i 2.690340900196114 7.2558e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      328  
   data-arc span      6790 days (18.59 yr)  
   first obs. used      1999-09-18  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56466  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 05:48:16  

Additional Information
 Jupiter MOID = 2.33597 au 
 T_jup = 3.396 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.823611667814472E-15 -1.831618911930913E-14 -4.976007162229578E-12 7.767053793131722E-14 -1.209427911987422E-12 -8.720016910832482E-15
q -1.831618911930913E-14 4.944187167574447E-14 1.439533607310728E-11 -2.137731094230752E-13 3.468730824607006E-12 2.373919195102095E-14
tp -4.976007162229578E-12 1.439533607310728E-11 1.063878483457146E-8 -9.111690543304914E-11 2.586494182383063E-9 8.070835917626095E-12
node 7.767053793131722E-14 -2.137731094230752E-13 -9.111690543304914E-11 2.393403826208261E-8 -2.392799537550889E-8 4.143969471328519E-10
peri -1.209427911987422E-12 3.468730824607006E-12 2.586494182383063E-9 -2.392799537550889E-8 2.453796427798183E-8 -4.121480491204031E-10
i -8.720016910832482E-15 2.373919195102095E-14 8.070835917626095E-12 4.143969471328519E-10 -4.121480491204031E-10 5.26467365435279E-11

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 16.2   n/a MPO439951  

160621 (1999 TK120)          Discovered 1999-Oct-04 by LINEAR at Socorro
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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