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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1496811728111347 3.5979e-08  
a 2.379593926217487 9.7792e-09 au
q 2.023413516527 8.4037e-08 au
i 5.055739163303567 4.2602e-06 deg
node 200.2736166741747 4.4612e-05 deg
peri 81.15505808106546 4.768e-05 deg
M 160.6155362869306 1.449e-05 deg
tp 2458602.311918367088
(2019-Apr-28.81191837)		 5.4264e-05 TDB
period 1340.765123762011
3.67		 8.265e-06
2.263e-08		 d
yr
n .2685034042277945 1.6552e-09 deg/d
Q 2.735774335907973 1.1243e-08 au
   Orbit Determination Parameters
   # obs. used (total)      468  
   data-arc span      8542 days (23.39 yr)  
   first obs. used      1997-08-30  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56862  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:19:14  

Additional Information
 Earth MOID = 1.01279 au 
 Jupiter MOID = 2.39912 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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