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109549 (2001 QM257)
Classification: Jupiter Trojan          SPK-ID: 2109549
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .07852629758829274 6.7653e-08  
a 5.189627784040635 1.2253e-07 au
q 4.782105528298588 3.8238e-07 au
i 22.327429190985 7.6474e-06 deg
node 16.89677562934538 1.2472e-05 deg
peri 317.5055415091412 4.9596e-05 deg
M 234.949200142855 5.2946e-05 deg
tp 2460500.484305798150
(2024-Jul-08.98430580)
0.00066559 TDB
period 4318.199889198712
11.82
0.00015293
4.187e-07
d
yr
n .08336807216833166 2.9526e-09 deg/d
Q 5.597150039782682 1.3215e-07 au
  Orbit Determination Parameters
   # obs. used (total)      667  
   data-arc span      7151 days (19.58 yr)  
   first obs. used      2000-09-28  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5374  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:05:53  

Additional Information
 Earth MOID = 3.80731 au 
 Jupiter MOID = .0292161 au 
 T_jup = 2.845 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.2   n/a MPO280508  

109549 (2001 QM257)          Discovered 2001-Aug-25 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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