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145713 (1991 TQ15)
Classification: Main-belt Asteroid          SPK-ID: 2145713
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2584926780171314 4.3808e-08  
a 2.342844893359668 1.0402e-08 au
q 1.737236642696367 1.0366e-07 au
i 3.81581444072602 5.3033e-06 deg
node 172.1230750874908 6.2797e-05 deg
peri 166.2056940921081 6.3472e-05 deg
M 26.39203763337444 9.1566e-06 deg
tp 2458904.475035798289
(2020-Feb-24.97503580)
3.3122e-05 TDB
period 1309.826379941999
3.59
8.7237e-06
2.388e-08
d
yr
n .274845586799024 1.8305e-09 deg/d
Q 2.948453144022969 1.3091e-08 au
  Orbit Determination Parameters
   # obs. used (total)      458  
   data-arc span      10108 days (27.67 yr)  
   first obs. used      1991-10-06  
   last obs. used      2019-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53781  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 08:32:15  

Additional Information
 Earth MOID = .728615 au 
 Jupiter MOID = 2.45429 au 
 T_jup = 3.514 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO436731  

145713 (1991 TQ15)          Discovered 1991-Oct-06 by Lowe, A. at Palomar
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

Alternate Designations
 1991 TQ15 = 2005 NY87 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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