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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2129523085688183 6.4874e-08  
a 2.571007750859497 1.7175e-08 au
q 2.023505714965642 1.6888e-07 au
i 2.695892875160791 6.9552e-06 deg
node 287.3129171460995 0.00014084 deg
peri 67.03218830089079 0.00014232 deg
M 65.15260848952207 2.5288e-05 deg
tp 2458927.989768256989
(2020-Mar-19.48976826)
0.00010349 TDB
period 1505.752197830437
4.12
1.5088e-05
4.131e-08
d
yr
n .2390831642276239 2.3957e-09 deg/d
Q 3.118509786753352 2.0833e-08 au
  Orbit Determination Parameters
   # obs. used (total)      381  
   data-arc span      7793 days (21.34 yr)  
   first obs. used      1999-09-18  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53815  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:02:06  

Additional Information
 Earth MOID = 1.01873 au 
 Jupiter MOID = 2.33592 au 
 T_jup = 3.396 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455645.5 (2011-Mar-25.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2138966369724223 6.4641e-08  
q 2.020546886999347 1.6804e-07 au
tp 2455919.923120683448
(2011-Dec-24.42312068)
7.9589e-05 TDB
node 287.4822940337481 0.0001413 deg
peri 67.36721759500489 0.00014276 deg
i 2.690812074547603 6.947e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      381  
   data-arc span      7793 days (21.34 yr)  
   first obs. used      1999-09-18  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53815  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:02:06  

Additional Information
 Jupiter MOID = 2.33592 au 
 T_jup = 3.396 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.178475827524757E-15 -1.082842282480628E-14 -1.647986772056378E-12 4.240081087101917E-14 -4.828644568178083E-13 -4.98393889902156E-15
q -1.082842282480628E-14 2.823667011353032E-14 4.945792205852394E-12 -1.140948722448369E-13 1.407350245023582E-12 1.316522796124821E-14
tp -1.647986772056378E-12 4.945792205852394E-12 6.334331391547885E-9 -5.064025067306865E-11 1.656708795777201E-9 3.06643532246234E-12
node 4.240081087101917E-14 -1.140948722448369E-13 -5.064025067306865E-11 1.996637617550919E-8 -1.995664352139099E-8 2.908014001999079E-10
peri -4.828644568178083E-13 1.407350245023582E-12 1.656708795777201E-9 -1.995664352139099E-8 2.037912474927866E-8 -2.897389767202326E-10
i -4.98393889902156E-15 1.316522796124821E-14 3.06643532246234E-12 2.908014001999079E-10 -2.897389767202326E-10 4.826116004469789E-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 16.22   n/a MPCxxxxx  

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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