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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06577725644697345 5.1088e-08  
a 3.231460503516042 3.0894e-08 au
q 3.018903897278001 1.6656e-07 au
i 9.427067576979809 5.4448e-06 deg
node 300.9669141433155 3.1434e-05 deg
peri 53.56807429507494 5.107e-05 deg
M 100.0088338812353 3.9058e-05 deg
tp 2458611.069550132569
(2019-May-07.56955013)
0.00023049 TDB
period 2121.762185571181
5.81
3.0428e-05
8.331e-08
d
yr
n .1696702874846869 2.4332e-09 deg/d
Q 3.444017109754082 3.2927e-08 au
  Orbit Determination Parameters
   # obs. used (total)      482  
   data-arc span      8391 days (22.97 yr)  
   first obs. used      1998-01-29  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50379  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:52:12  

Additional Information
 Earth MOID = 2.02229 au 
 Jupiter MOID = 1.91755 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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