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118243 (1997 QL1)
Classification: Main-belt Asteroid          SPK-ID: 2118243
[ 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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1498256045283503 3.6056e-08  
a 2.379125535465892 9.9427e-09 au
q 2.02267161386588 8.4128e-08 au
i 5.056287835327993 4.3244e-06 deg
node 200.2795682015538 4.4783e-05 deg
peri 81.08940976425485 4.8076e-05 deg
M 106.9700758705508 1.489e-05 deg
tp 2458602.223880104872
(2019-Apr-28.72388010)		 5.575e-05 TDB
period 1340.369276130605
3.67		 8.4024e-06
2.3e-08		 d
yr
n .2685827006116199 1.6837e-09 deg/d
Q 2.735579457065905 1.1432e-08 au
   Orbit Determination Parameters
   # obs. used (total)      452  
   data-arc span      8123 days (22.24 yr)  
   first obs. used      1997-08-30  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56866  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 09:51:40  

Additional Information
 Earth MOID = 1.01391 au 
 Jupiter MOID = 2.40008 au 
 T_jup = 3.519 
[ 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 16.7   n/a MPO436568  

118243 (1997 QL1)          Discovered 1997-Aug-30 by Moravec, Z. at Klet
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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Alternate Designations
 1997 QL1 = 2000 GK21 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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