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74905 (1999 TQ125)
Classification: Main-belt Asteroid          SPK-ID: 2074905
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2242921991088472 3.188e-08  
a 2.295426419298559 9.0449e-09 au
q 1.780580179821538 7.2515e-08 au
i 5.325192302953893 4.2364e-06 deg
node 229.4500870949176 4.0762e-05 deg
peri 37.79614852210057 4.2011e-05 deg
M 56.85047216638684 1.1966e-05 deg
tp 2458799.902707980287
(2019-Nov-12.40270798)
4.1675e-05 TDB
period 1270.262539170155
3.48
7.508e-06
2.056e-08
d
yr
n .2834059801804302 1.6751e-09 deg/d
Q 2.810272658775579 1.1074e-08 au
  Orbit Determination Parameters
   # obs. used (total)      931  
   data-arc span      14415 days (39.47 yr)  
   first obs. used      1981-05-08  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5214  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:41:53  

Additional Information
 Earth MOID = .768409 au 
 Jupiter MOID = 2.28585 au 
 T_jup = 3.556 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457521.5 (2016-May-13.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2236949233653176 3.1887e-08  
q 1.782202426450866 7.2487e-08 au
tp 2457529.304390795383
(2016-May-20.80439080)
3.9038e-05 TDB
node 229.4674900093008 4.0751e-05 deg
peri 37.81253871553617 4.2006e-05 deg
i 5.325109431940965 4.2369e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      931  
   data-arc span      14415 days (39.47 yr)  
   first obs. used      1981-05-08  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5214  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:41:53  

Additional Information
 Jupiter MOID = 2.28585 au 
 T_jup = 3.556 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.016764968924339E-15 -2.300809561367327E-15 -4.725917628370288E-14 1.314343994121681E-14 -3.837109167070186E-14 2.695078186443669E-16
q -2.300809561367327E-15 5.254327518915443E-15 1.861254657955072E-13 -3.059674030529432E-14 1.068262501323221E-13 -5.758678594648531E-16
tp -4.725917628370288E-14 1.861254657955072E-13 1.523982280791746E-9 -8.969451613287265E-12 4.106144260317915E-10 6.207917441540209E-13
node 1.314343994121681E-14 -3.059674030529432E-14 -8.969451613287265E-12 1.66064137656597E-9 -1.655533797205897E-9 -4.126048671201438E-11
peri -3.837109167070186E-14 1.068262501323221E-13 4.106144260317915E-10 -1.655533797205897E-9 1.764484228874537E-9 4.124734566634624E-11
i 2.695078186443669E-16 -5.758678594648531E-16 6.207917441540209E-13 -4.126048671201438E-11 4.124734566634624E-11 1.795140427515468E-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 15.7   n/a MPO474635  

74905 (1999 TQ125)          Discovered 1999-Oct-04 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 TQ125 = 1981 JV4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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