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186990 (2004 TD7)
Classification: Main-belt Asteroid          SPK-ID: 2186990
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1656382574485332 5.6503e-08  
a 3.105285722887196 3.3235e-08 au
q 2.590931606868352 1.8984e-07 au
i 16.16103700805022 6.5449e-06 deg
node 70.91120459305425 2.3895e-05 deg
peri 245.2754894845041 3.5132e-05 deg
M 65.15892259298653 2.3196e-05 deg
tp 2459034.738645939007
(2020-Jul-04.23864594)
0.00013003 TDB
period 1998.71456247767
5.47
3.2088e-05
8.785e-08
d
yr
n .1801157637805633 2.8916e-09 deg/d
Q 3.61963983890604 3.874e-08 au
  Orbit Determination Parameters
   # obs. used (total)      573  
   data-arc span      7702 days (21.09 yr)  
   first obs. used      1999-10-10  
   last obs. used      2020-11-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53181  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:53:33  

Additional Information
 Earth MOID = 1.62459 au 
 Jupiter MOID = 1.76817 au 
 T_jup = 3.139 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457563.5 (2016-Jun-24.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1666718417689471 5.6795e-08  
q 2.587700843642318 1.917e-07 au
tp 2457040.610617574991
(2015-Jan-18.11061757)
0.00014102 TDB
node 70.94335063592834 2.3873e-05 deg
peri 246.1501393515226 3.4941e-05 deg
i 16.17154340843519 6.5526e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      573  
   data-arc span      7702 days (21.09 yr)  
   first obs. used      1999-10-10  
   last obs. used      2020-11-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53181  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:53:33  

Additional Information
 Jupiter MOID = 1.76817 au 
 T_jup = 3.139 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.225699333456149E-15 -1.079660683155828E-14 4.408922882008582E-12 2.561000261070763E-14 7.969905756218941E-13 -1.240463771455583E-14
q -1.079660683155828E-14 3.674867822440344E-14 -1.557946498023172E-11 -8.502967822587723E-14 -2.785104259449111E-12 4.360287151570894E-14
tp 4.408922882008582E-12 -1.557946498023172E-11 1.988721605095828E-8 6.081060677096187E-11 3.663711404224353E-9 -2.783259288450992E-11
node 2.561000261070763E-14 -8.502967822587723E-14 6.081060677096187E-11 5.699071401230308E-10 -5.357179349340698E-10 -6.609116812402135E-11
peri 7.969905756218941E-13 -2.785104259449111E-12 3.663711404224353E-9 -5.357179349340698E-10 1.220862150886067E-9 5.851420231384057E-11
i -1.240463771455583E-14 4.360287151570894E-14 -2.783259288450992E-11 -6.609116812402135E-11 5.851420231384057E-11 4.293694183965566E-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 14.70   n/a MPCxxxxx  

186990 (2004 TD7)          Discovered 2004-Oct-05 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

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