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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1589903335855135 3.4414e-08  
a 2.750645971314892 1.2688e-08 au
q 2.313319850759889 9.5949e-08 au
i 13.35677254076206 3.9966e-06 deg
node 179.59564542136 1.4828e-05 deg
peri 164.8533177432815 1.8387e-05 deg
M 127.1569312473511 1.1393e-05 deg
tp 2458411.943703887027
(2018-Oct-20.44370389)
5.207e-05 TDB
period 1666.289556709353
4.56
1.1529e-05
3.156e-08
d
yr
n .2160488845113695 1.4949e-09 deg/d
Q 3.187972091869896 1.4705e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1565  
   data-arc span      17848 days (48.87 yr)  
   first obs. used      1971-03-24  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49464  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:01:29  

Additional Information
 Earth MOID = 1.30936 au 
 Jupiter MOID = 2.26644 au 
 T_jup = 3.288 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456895.5 (2014-Aug-26.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1603940142902723 3.4668e-08  
q 2.307988044349924 9.6755e-08 au
tp 2456739.868912654520
(2014-Mar-23.36891265)
5.0676e-05 TDB
node 179.6611045079848 1.4827e-05 deg
peri 163.6563952655192 1.8265e-05 deg
i 13.35720364670409 3.9984e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1565  
   data-arc span      17848 days (48.87 yr)  
   first obs. used      1971-03-24  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49464  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:01:29  

Additional Information
 Jupiter MOID = 2.26644 au 
 T_jup = 3.288 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.201868218560702E-15 -3.334363898876179E-15 2.306606614000123E-13 4.042028936804403E-16 3.05909760838278E-14 -1.372057264695612E-15
q -3.334363898876179E-15 9.361507924778895E-15 -6.708961705513464E-13 -7.717207538168202E-16 -8.964134518462025E-14 4.180750810582249E-15
tp 2.306606614000123E-13 -6.708961705513464E-13 2.568089545411631E-9 2.710565942515568E-12 5.518696275051322E-10 -2.676201888377231E-12
node 4.042028936804403E-16 -7.717207538168202E-16 2.710565942515568E-12 2.198477064561729E-10 -2.130572215778018E-10 1.698649646436259E-12
peri 3.05909760838278E-14 -8.964134518462025E-14 5.518696275051322E-10 -2.130572215778018E-10 3.336259867938421E-10 -2.246753523077995E-12
i -1.372057264695612E-15 4.180750810582249E-15 -2.676201888377231E-12 1.698649646436259E-12 -2.246753523077995E-12 1.598721107519271E-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 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

[ show close-approach data ]
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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