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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1426246307641817 6.5514e-08  
a 3.137484475996998 3.3794e-08 au
q 2.690001911079574 2.1512e-07 au
i 14.14199440692574 6.8109e-06 deg
node 299.5190414973155 2.9402e-05 deg
peri 1.645641254876838 4.0083e-05 deg
M 1.602526924297831 2.9844e-05 deg
tp 2458991.464053737614
(2020-May-21.96405374)
0.00016824 TDB
period 2029.882060099735
5.56
3.2796e-05
8.979e-08
d
yr
n .1773502052539506 2.8654e-09 deg/d
Q 3.584967040914421 3.8614e-08 au
  Orbit Determination Parameters
   # obs. used (total)      666  
   data-arc span      7962 days (21.80 yr)  
   first obs. used      1998-08-19  
   last obs. used      2020-06-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5758  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:38:06  

Additional Information
 Earth MOID = 1.67449 au 
 Jupiter MOID = 1.66066 au 
 T_jup = 3.149 
[ 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 14.0   n/a MPO351484  

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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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