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118175 (1991 TL16)
Classification: Main-belt Asteroid          SPK-ID: 2118175
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1493961537056886 4.4036e-08  
a 2.298260745368224 9.0889e-09 au
q 1.954909429797443 1.0139e-07 au
i 7.179711933249483 5.6508e-06 deg
node 63.20848583229512 3.6396e-05 deg
peri 308.422924666817 4.1353e-05 deg
M 96.35770549604484 2.0594e-05 deg
tp 2458659.871231079805
(2019-Jun-25.37123108)
7.1935e-05 TDB
period 1272.615990387024
3.48
7.5492e-06
2.067e-08
d
yr
n .2828818769521494 1.6781e-09 deg/d
Q 2.641612060939007 1.0447e-08 au
  Orbit Determination Parameters
   # obs. used (total)      413  
   data-arc span      10329 days (28.28 yr)  
   first obs. used      1991-10-06  
   last obs. used      2020-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55145  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 05:54:51  

Additional Information
 Earth MOID = .965219 au 
 Jupiter MOID = 2.83406 au 
 T_jup = 3.568 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457031.5 (2015-Jan-09.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1502079764911296 4.415e-08  
q 1.952639695979291 1.0173e-07 au
tp 2457385.745939761981
(2015-Dec-29.24593976)
6.8351e-05 TDB
node 63.24073436793984 3.6429e-05 deg
peri 308.0277270286275 4.1294e-05 deg
i 7.178240422997263 5.6476e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      413  
   data-arc span      10329 days (28.28 yr)  
   first obs. used      1991-10-06  
   last obs. used      2020-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55145  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 05:54:51  

Additional Information
 Jupiter MOID = 2.83406 au 
 T_jup = 3.568 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.949217451038258E-15 -4.478491252824418E-15 6.391440467856435E-13 -7.022467514077995E-16 1.27263132773754E-13 1.644086631906341E-16
q -4.478491252824418E-15 1.03495971542513E-14 -1.289502727498364E-12 1.412752717778231E-15 -2.481411070622632E-13 -3.945935521006436E-16
tp 6.391440467856435E-13 -1.289502727498364E-12 4.671868638907544E-9 -1.595227254881099E-11 1.339503411457053E-9 -3.727836877175642E-12
node -7.022467514077995E-16 1.412752717778231E-15 -1.595227254881099E-11 1.327081679664699E-9 -1.320761477555228E-9 2.205558880113098E-11
peri 1.27263132773754E-13 -2.481411070622632E-13 1.339503411457053E-9 -1.320761477555228E-9 1.705165527137843E-9 -2.289922665547589E-11
i 1.644086631906341E-16 -3.945935521006436E-16 -3.727836877175642E-12 2.205558880113098E-11 -2.289922665547589E-11 3.189526381107793E-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 16.6   n/a MPO449690  

118175 (1991 TL16)          Discovered 1991-Oct-06 by Lowe, A. at Palomar
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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Alternate Designations
 1991 TL16 = 1998 VZ39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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