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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07786523206025064 9.4485e-08  
a 5.192564016606853 1.3463e-07 au
q 4.788243814466053 4.8122e-07 au
i 22.31986158718893 7.727e-06 deg
node 16.8999620289573 1.5558e-05 deg
peri 317.4097786552261 5.1763e-05 deg
M 201.6752340554307 5.541e-05 deg
tp 2460501.217485289050
(2024-Jul-09.71748529)
0.00071028 TDB
period 4321.865190336818
11.83
0.00016809
4.602e-07
d
yr
n .08329736910927199 3.2396e-09 deg/d
Q 5.596884218747652 1.4512e-07 au
  Orbit Determination Parameters
   # obs. used (total)      594  
   data-arc span      6782 days (18.57 yr)  
   first obs. used      2000-09-28  
   last obs. used      2019-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54743  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:28:04  

Additional Information
 Earth MOID = 3.81262 au 
 Jupiter MOID = .0326512 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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