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109446 (2001 QS204)
Classification: Outer Main-belt Asteroid          SPK-ID: 2109446
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06566381913943166 5.6441e-08  
a 3.230712363369823 3.4305e-08 au
q 3.018571451049981 1.8998e-07 au
i 9.427129540912823 5.5921e-06 deg
node 300.9667994704927 3.5978e-05 deg
peri 53.38276001506286 5.5516e-05 deg
M 66.26632235048058 4.041e-05 deg
tp 2458610.076243845862
(2019-May-06.57624385)
0.00023901 TDB
period 2121.025390123679
5.81
3.3783e-05
9.249e-08
d
yr
n .169729227040987 2.7034e-09 deg/d
Q 3.442853275689664 3.6558e-08 au
  Orbit Determination Parameters
   # obs. used (total)      438  
   data-arc span      8292 days (22.70 yr)  
   first obs. used      1998-01-29  
   last obs. used      2020-10-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5207  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:12:02  

Additional Information
 Earth MOID = 2.02361 au 
 Jupiter MOID = 1.91813 au 
 T_jup = 3.162 
[ 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 14.8   n/a MPO453554  

109446 (2001 QS204)          Discovered 2001-Aug-23 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 QS204 = 1998 BV37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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