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249635 (1999 TQ120)
Classification: Main-belt Asteroid          SPK-ID: 2249635
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2773240443050688 4.8629e-08  
a 2.385878611258526 1.5882e-08 au
q 1.724217105563351 1.1859e-07 au
i 1.942345942241951 4.9899e-06 deg
node 269.9590677383126 0.00017769 deg
peri 58.79449659665283 0.00017805 deg
M 243.8458920733449 1.5752e-05 deg
tp 2459434.813186641218
(2021-Aug-08.31318664)
6.2308e-05 TDB
period 1346.080220335958
3.69
1.3441e-05
3.68e-08
d
yr
n .2674431988237301 2.6705e-09 deg/d
Q 3.047540116953702 2.0287e-08 au
  Orbit Determination Parameters
   # obs. used (total)      245  
   data-arc span      7523 days (20.60 yr)  
   first obs. used      1999-09-18  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60359  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:46:14  

Additional Information
 Earth MOID = .714014 au 
 Jupiter MOID = 2.32111 au 
 T_jup = 3.481 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456823.5 (2014-Jun-15.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2782239361246081 4.8835e-08  
q 1.721836723293785 1.1926e-07 au
tp 2456739.711502835498
(2014-Mar-23.21150284)
4.3187e-05 TDB
node 270.3207975772201 0.00017735 deg
peri 58.04702561694703 0.00017771 deg
i 1.945282615316172 4.9912e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      245  
   data-arc span      7523 days (20.60 yr)  
   first obs. used      1999-09-18  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60359  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:46:14  

Additional Information
 Jupiter MOID = 2.32111 au 
 T_jup = 3.481 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.38489071761176E-15 -5.797878611964975E-15 3.836744406470516E-13 -6.389459786426637E-15 7.504859902065297E-14 -2.154719671592641E-15
q -5.797878611964975E-15 1.422379857281875E-14 -6.486969505132921E-13 8.691508338404313E-15 -1.088667487894868E-13 5.383948446609273E-15
tp 3.836744406470516E-13 -6.486969505132921E-13 1.865129080854441E-9 -3.094974008870886E-11 5.255213972263178E-10 -9.206564279326095E-13
node -6.389459786426637E-15 8.691508338404313E-15 -3.094974008870886E-11 3.145469053313314E-8 -3.14437704358902E-8 -9.863014988629429E-11
peri 7.504859902065297E-14 -1.088667487894868E-13 5.255213972263178E-10 -3.14437704358902E-8 3.158059714419521E-8 9.831880527846608E-11
i -2.154719671592641E-15 5.383948446609273E-15 -9.206564279326095E-13 -9.863014988629429E-11 9.831880527846608E-11 2.491180523990173E-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 16.9   n/a MPO418333  

249635 (1999 TQ120)          Discovered 1999-Oct-04 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

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