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109236 (2001 QR94)
Classification: Main-belt Asteroid          SPK-ID: 2109236
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .146750006123369 3.1367e-08  
a 2.645663159296574 1.4799e-08 au
q 2.25741207446943 8.1536e-08 au
i 13.2088131285391 4.3306e-06 deg
node 174.1388156210144 1.604e-05 deg
peri 263.8619308105697 2.3246e-05 deg
M 61.35110327697018 1.5354e-05 deg
tp 2458732.632436181596
(2019-Sep-06.13243618)
6.7166e-05 TDB
period 1571.81073890849
4.30
1.3188e-05
3.611e-08
d
yr
n .2290352083037645 1.9217e-09 deg/d
Q 3.033914244123719 1.697e-08 au
  Orbit Determination Parameters
   # obs. used (total)      747  
   data-arc span      7702 days (21.09 yr)  
   first obs. used      1999-03-22  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54932  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:02:28  

Additional Information
 Earth MOID = 1.3171 au 
 Jupiter MOID = 2.32331 au 
 T_jup = 3.340 
[ 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 MPO309937  

109236 (2001 QR94)          Discovered 2001-Aug-23 by Yeung, W. K. Y. at Desert Eagle
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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