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91165 (1998 QF84)
Classification: Main-belt Asteroid          SPK-ID: 2091165
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1426246801227538 8.4227e-08  
a 3.137484501130997 3.7505e-08 au
q 2.690001777767091 2.6524e-07 au
i 14.14199539156662 7.6443e-06 deg
node 299.5190316136787 3.1444e-05 deg
peri 1.645669020490394 4.6351e-05 deg
M 1.602497351439149 4.013e-05 deg
tp 2458991.464220377413
(2020-May-21.96422038)
0.0002262 TDB
period 2029.882084491435
5.56
3.6398e-05
9.965e-08
d
yr
n .1773502031228548 3.1801e-09 deg/d
Q 3.584967224494903 4.2855e-08 au
  Orbit Determination Parameters
   # obs. used (total)      576  
   data-arc span      7567 days (20.72 yr)  
   first obs. used      1998-08-19  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59781  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:03:34  

Additional Information
 Earth MOID = 1.67449 au 
 Jupiter MOID = 1.66066 au 
 T_jup = 3.149 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456781.5 (2014-May-04.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1419430510821477 8.4432e-08  
q 2.690905950608534 2.6649e-07 au
tp 2456969.733368460288
(2014-Nov-08.23336846)
0.00021312 TDB
node 299.5814866855225 3.1493e-05 deg
peri 2.713560091861333 4.6235e-05 deg
i 14.1305728841793 7.6369e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      576  
   data-arc span      7567 days (20.72 yr)  
   first obs. used      1998-08-19  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59781  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:03:34  

Additional Information
 Jupiter MOID = 1.66066 au 
 T_jup = 3.149 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.128808863745799E-15 -2.234862642277756E-14 1.134905101803188E-11 -1.519453285406515E-14 1.710001005542717E-12 -1.819290827439438E-14
q -2.234862642277756E-14 7.101767942401734E-14 -3.392111955366528E-11 4.833674017535927E-14 -5.110066144430095E-12 5.823676420833077E-14
tp 1.134905101803188E-11 -3.392111955366528E-11 4.541927985103442E-8 -3.860128967181036E-11 7.308585765790172E-9 -5.890161324092804E-11
node -1.519453285406515E-14 4.833674017535927E-14 -3.860128967181036E-11 9.918082251925728E-10 -9.676683681709978E-10 9.801911746514448E-11
peri 1.710001005542717E-12 -5.110066144430095E-12 7.308585765790172E-9 -9.676683681709978E-10 2.137657976226117E-9 -1.043611391170288E-10
i -1.819290827439438E-14 5.823676420833077E-14 -5.890161324092804E-11 9.801911746514448E-11 -1.043611391170288E-10 5.832228262680435E-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 14.0   n/a MPO351484  

91165 (1998 QF84)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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