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90751 (1993 QE9)
Classification: Main-belt Asteroid          SPK-ID: 2090751
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .148069461682811 3.064e-08  
a 2.326509883035564 8.1404e-09 au
q 1.982024817054749 7.107e-08 au
i 4.171685164705131 3.8356e-06 deg
node 145.2128133943827 4.3452e-05 deg
peri 241.1738982046493 4.5025e-05 deg
M 271.718705977591 1.2157e-05 deg
tp 2459714.349819502876
(2022-May-14.84981950)
4.4172e-05 TDB
period 1296.15153796896
3.55
6.8028e-06
1.863e-08
d
yr
n .2777453017292343 1.4577e-09 deg/d
Q 2.67099494901638 9.3457e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1094  
   data-arc span      10188 days (27.89 yr)  
   first obs. used      1993-08-15  
   last obs. used      2021-07-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51945  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:16:42  

Additional Information
 Earth MOID = .989186 au 
 Jupiter MOID = 2.78074 au 
 T_jup = 3.556 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.65   n/a E2021B10  

90751 (1993 QE9)          Discovered 1993-Aug-20 by Elst, E. W. at La Silla
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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