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91391 (1999 KQ5)
Classification: Main-belt Asteroid          SPK-ID: 2091391
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .230958885919602 6.8077e-08  
a 2.536651065001868 1.2657e-08 au
q 1.950788961062265 1.7405e-07 au
i 17.64477097402917 5.447e-06 deg
node 82.51252073129398 1.9076e-05 deg
peri 309.0256604413068 2.0682e-05 deg
M 309.5570757554999 1.0754e-05 deg
tp 2459207.269880982737
(2020-Dec-23.76988098)
4.4967e-05 TDB
period 1475.670934400703
4.04
1.1045e-05
3.024e-08
d
yr
n .2439568277775984 1.8259e-09 deg/d
Q 3.122513168941471 1.558e-08 au
  Orbit Determination Parameters
   # obs. used (total)      513  
   data-arc span      7747 days (21.21 yr)  
   first obs. used      1999-05-16  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59495  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:17:20  

Additional Information
 Earth MOID = 1.00443 au 
 Jupiter MOID = 2.39049 au 
 T_jup = 3.346 
[ 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 15.4   n/a MPO341246  

91391 (1999 KQ5)          Discovered 1999-May-16 by Bickel, W. at Bergisch Gladbach
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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