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JPL Small-Body Database Browser
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17318 (2091 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2017318
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1589903395911909 3.5941e-08  
a 2.750645969337731 1.3124e-08 au
q 2.313319832577585 1.0093e-07 au
i 13.35677323243302 4.2234e-06 deg
node 179.5956460142986 1.4869e-05 deg
peri 164.8533183952104 1.8515e-05 deg
M 127.1569307838907 1.1416e-05 deg
tp 2458411.943706666772
(2018-Oct-20.44370667)
5.2253e-05 TDB
period 1666.289554912763
4.56
1.1925e-05
3.265e-08
d
yr
n .2160488847443129 1.5462e-09 deg/d
Q 3.187972106097878 1.521e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1510  
   data-arc span      17818 days (48.78 yr)  
   first obs. used      1971-03-24  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49734  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 00:26:59  

Additional Information
 Earth MOID = 1.30936 au 
 Jupiter MOID = 2.26644 au 
 T_jup = 3.288 
[ show covariance matrix ]

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 13.8   n/a PDS3 (MPO 3086)  

17318 (2091 T-1)          Discovered 1971-Mar-25 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 2091 T-1 = 1999 JD94 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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