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JPL Small-Body Database Browser
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109144 (2001 QN57)
Classification: Main-belt Asteroid          SPK-ID: 2109144
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1897672785093737 3.4655e-08  
a 2.470769186806124 1.5035e-08 au
q 2.001898042401107 8.8296e-08 au
i 2.657182001120923 5.9245e-06 deg
node 25.19721091412721 8.5824e-05 deg
peri 272.747129857535 8.8086e-05 deg
M 221.9699343509812 2.3709e-05 deg
tp 2459144.398530572738
(2020-Oct-21.89853057)
9.6865e-05 TDB
period 1418.556675210692
3.88
1.2948e-05
3.545e-08
d
yr
n .253779074386669 2.3165e-09 deg/d
Q 2.939640331211141 1.7888e-08 au
  Orbit Determination Parameters
   # obs. used (total)      549  
   data-arc span      6943 days (19.01 yr)  
   first obs. used      2000-03-03  
   last obs. used      2019-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53639  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:28:25  

Additional Information
 Earth MOID = .987588 au 
 Jupiter MOID = 2.27661 au 
 T_jup = 3.458 
[ 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 16.3   n/a MPO432615  

109144 (2001 QN57)          Discovered 2001-Aug-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 QN57 = 2000 EN191 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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