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190744 (2001 QE7)
Classification: Main-belt Asteroid          SPK-ID: 2190744
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1760895175073046 6.1821e-08  
a 2.277068004114518 1.2182e-08 au
q 1.876100197938672 1.4467e-07 au
i 7.215209424510266 7.7189e-06 deg
node 322.317481989539 4.4547e-05 deg
peri 320.1305313755823 5.0353e-05 deg
M 257.2576909105105 1.9548e-05 deg
tp 2459558.686529882958
(2021-Dec-10.18652988)		 6.7973e-05 TDB
period 1255.054046386584
3.44		 1.0072e-05
2.758e-08		 d
yr
n .2868402369096957 2.3019e-09 deg/d
Q 2.678035810290364 1.4328e-08 au
   Orbit Determination Parameters
   # obs. used (total)      292  
   data-arc span      22055 days (60.38 yr)  
   first obs. used      1960-10-26  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .64247  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:08:56  

Additional Information
 Earth MOID = .864445 au 
 Jupiter MOID = 2.49786 au 
 T_jup = 3.577 
[ 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 17.1   n/a MPO454318  

190744 (2001 QE7)          Discovered 2001-Aug-16 by LINEAR at Socorro
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

Alternate Designations
 2001 QE7 = 2000 DM90 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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