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109358 (2001 QR155)
Classification: Main-belt Asteroid          SPK-ID: 2109358
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1478882599670333 4.1033e-08  
a 2.767391849086978 1.687e-08 au
q 2.358127083878554 1.1268e-07 au
i 11.80501151941674 6.0823e-06 deg
node 171.1433536460128 1.9702e-05 deg
peri 143.2532821739617 2.8323e-05 deg
M 43.66791813050268 2.0145e-05 deg
tp 2458796.530890560027
(2019-Nov-09.03089056)
9.3418e-05 TDB
period 1681.529199055153
4.60
1.5376e-05
4.21e-08
d
yr
n .2140908407670132 1.9576e-09 deg/d
Q 3.176656614295402 1.9364e-08 au
  Orbit Determination Parameters
   # obs. used (total)      588  
   data-arc span      7143 days (19.56 yr)  
   first obs. used      2000-04-27  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54949  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 09:05:23  

Additional Information
 Earth MOID = 1.35676 au 
 Jupiter MOID = 2.21837 au 
 T_jup = 3.292 
[ 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 MPO436525  

109358 (2001 QR155)          Discovered 2001-Aug-23 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 QR155 = 2001 MH9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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