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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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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .189207521930934 3.9756e-08  
a 2.293040909982554 5.3773e-09 au
q 1.859180321718501 8.9912e-08 au
i 7.138646709947857 4.4498e-06 deg
node 345.88641936 2.1876e-05 deg
peri 328.9582135353629 2.4017e-05 deg
M 59.46366785007351 1.0492e-05 deg
tp 2458991.009021849521
(2020-May-21.50902185)
3.6766e-05 TDB
period 1268.282883664721
3.47
4.4613e-06
1.221e-08
d
yr
n .2838483469553535 9.9847e-10 deg/d
Q 2.726901498246607 6.3948e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1989  
   data-arc span      16038 days (43.91 yr)  
   first obs. used      1977-02-19  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46919  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:48:27  

Additional Information
 Earth MOID = .848114 au 
 Jupiter MOID = 2.57897 au 
 T_jup = 3.563 
[ 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 14.71   n/a E2021B10  

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

[ show close-approach data ]
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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