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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1900428477069522 3.4092e-08  
a 2.471011045629536 1.0333e-08 au
q 2.001413069802765 8.7908e-08 au
i 2.657165323972405 5.2549e-06 deg
node 25.19228983308371 7.8828e-05 deg
peri 272.7369358693425 8.0227e-05 deg
M 323.5205632412577 1.5152e-05 deg
tp 2459144.265963881788
(2020-Oct-21.76596388)
6.0008e-05 TDB
period 1418.764969967373
3.88
8.8996e-06
2.437e-08
d
yr
n .2537418160305148 1.5917e-09 deg/d
Q 2.940609021456307 1.2297e-08 au
  Orbit Determination Parameters
   # obs. used (total)      626  
   data-arc span      7411 days (20.29 yr)  
   first obs. used      2000-03-03  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52413  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:32:56  

Additional Information
 Earth MOID = .987826 au 
 Jupiter MOID = 2.27741 au 
 T_jup = 3.457 
[ 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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