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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457365.5 (2015-Dec-09.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06473400445912805 5.6668e-08  
q 3.025029566682094 1.8959e-07 au
tp 2456464.901089338993
(2013-Jun-21.40108934)
0.00025005 TDB
node 301.3404381923604 3.5805e-05 deg
peri 49.48185205706605 5.5956e-05 deg
i 9.449229802042826 5.6057e-06 deg
  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
 Jupiter MOID = 1.91813 au 
 T_jup = 3.162 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.211206208595722E-15 -1.059305552568594E-14 -2.793379203602271E-14 -9.847218337116183E-15 -5.140889575406158E-14 -5.418560816311058E-15
q -1.059305552568594E-14 3.594592680372534E-14 -1.832010848367209E-12 4.121023731728115E-14 -8.951824615200479E-14 2.089728393771932E-14
tp -2.793379203602271E-14 -1.832010848367209E-12 6.252352722734306E-8 -1.596324794649499E-11 1.079503220473306E-8 -1.481532357747209E-11
node -9.847218337116183E-15 4.121023731728115E-14 -1.596324794649499E-11 1.282007278389661E-9 -1.26540360054676E-9 4.259669372591701E-11
peri -5.140889575406158E-14 -8.951824615200479E-14 1.079503220473306E-8 -1.26540360054676E-9 3.13106370677176E-9 -4.441604483522546E-11
i -5.418560816311058E-15 2.089728393771932E-14 -1.481532357747209E-11 4.259669372591701E-11 -4.441604483522546E-11 3.142422113350585E-11

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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