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JPL Small-Body Database Browser
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109471 (2001 QH218)
Classification: Main-belt Asteroid          SPK-ID: 2109471
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2060675955633364 8.2235e-08  
a 2.464156526969366 1.9932e-08 au
q 1.956373716365087 1.9558e-07 au
i 3.444748466435873 5.5842e-06 deg
node 136.0426281390916 0.00012766 deg
peri 233.4945397247986 0.00012863 deg
M 184.2434687813941 2.5746e-05 deg
tp 2459290.278789586981
(2021-Mar-16.77878959)
0.00010867 TDB
period 1412.8656416327
3.87
1.7142e-05
4.693e-08
d
yr
n .2548012984334349 3.0915e-09 deg/d
Q 2.971939337573645 2.4039e-08 au
  Orbit Determination Parameters
   # obs. used (total)      417  
   data-arc span      9445 days (25.86 yr)  
   first obs. used      1993-06-22  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5616  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:31:25  

Additional Information
 Earth MOID = .957161 au 
 Jupiter MOID = 2.48878 au 
 T_jup = 3.456 
[ 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 16.4   n/a MPO233971  

109471 (2001 QH218)          Discovered 2001-Aug-23 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2001 QH218 = 1999 BW28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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