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109491 (2001 QF227)
Classification: Main-belt Asteroid          SPK-ID: 2109491
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2152477357985748 5.6192e-08  
a 3.131590316510553 3.1374e-08 au
q 2.457522591432914 1.7158e-07 au
i 7.447269938620988 6.0842e-06 deg
node 249.6900061079761 6.3972e-05 deg
peri 43.74161282491426 6.7635e-05 deg
M 176.2002867549929 2.7618e-05 deg
tp 2458009.782238230398
(2017-Sep-13.28223823)
0.00014689 TDB
period 2024.164664005295
5.54
3.0419e-05
8.328e-08
d
yr
n .1778511434379324 2.6727e-09 deg/d
Q 3.805658041588192 3.8127e-08 au
  Orbit Determination Parameters
   # obs. used (total)      375  
   data-arc span      7214 days (19.75 yr)  
   first obs. used      2000-05-01  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53987  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:26:38  

Additional Information
 Earth MOID = 1.448 au 
 Jupiter MOID = 1.42509 au 
 T_jup = 3.164 
[ 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 15.0   n/a MPO469119  

109491 (2001 QF227)          Discovered 2001-Aug-24 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 QF227 = 2000 JR 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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