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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1894766266844115 4.4122e-08  
a 2.292929391927184 9.1767e-09 au
q 1.858472865519282 1.0273e-07 au
i 7.138062074355419 5.1024e-06 deg
node 345.9136104697527 2.7835e-05 deg
peri 329.0851611443526 2.9792e-05 deg
M 249.0432759059602 1.3269e-05 deg
tp 2458991.372911897011
(2020-May-21.87291190)
4.8176e-05 TDB
period 1268.190363692277
3.47
7.6133e-06
2.084e-08
d
yr
n .2838690549200176 1.7041e-09 deg/d
Q 2.727385918335085 1.0915e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1454  
   data-arc span      15421 days (42.22 yr)  
   first obs. used      1977-02-19  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51408  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:53:31  

Additional Information
 Earth MOID = .84852 au 
 Jupiter MOID = 2.57688 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 14.7   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

[ 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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