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20567 McQuarrie (1999 RS129)
Classification: Main-belt Asteroid          SPK-ID: 2020567
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1893955404253807 4.2922e-08  
a 2.293505569018205 7.83e-09 au
q 1.859125842305382 9.9038e-08 au
i 7.138185775991061 5.0889e-06 deg
node 345.8869961897811 2.6691e-05 deg
peri 328.9640282760432 2.8634e-05 deg
M 2.685917142485481 1.2105e-05 deg
tp 2458991.034616040002
(2020-May-21.53461604)
4.2636e-05 TDB
period 1268.668408157204
3.47
6.4968e-06
1.779e-08
d
yr
n .2837620907758834 1.4531e-09 deg/d
Q 2.727885295731028 9.313e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1535  
   data-arc span      15871 days (43.45 yr)  
   first obs. used      1977-02-19  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50561  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 01:36:40  

Additional Information
 Earth MOID = .850026 au 
 Jupiter MOID = 2.57833 au 
 T_jup = 3.562 
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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 14.7   n/a MPO474036  

20567 McQuarrie           Discovered 1999 Sept. 9 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Kerry Ann McQuarrie mentored a finalist in the 2004 Discovery Channel Youth Science Challenge (DCYSC), a middle school science competition. She teaches at the Chapin School, Princeton, New Jersey.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20041028/MPCPages.arcLast Updated: 2004-10-29

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Alternate Designations
 1999 RS129 = 1977 DP5 = 1992 PU6 = 1998 FZ16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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