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JPL Small-Body Database Browser
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20483 Sinay (1999 NK41)
Classification: Main-belt Asteroid          SPK-ID: 2020483
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1747608350252434 3.8224e-08  
a 2.30866905468327 8.7701e-09 au
q 1.905204122889882 8.7033e-08 au
i 7.92400376493973 4.4172e-06 deg
node 336.987618865391 2.6933e-05 deg
peri 14.41609318322882 2.9423e-05 deg
M 198.5640819605913 1.3954e-05 deg
tp 2459175.064271427026
(2020-Nov-21.56427143)
5.1551e-05 TDB
period 1281.270861068454
3.51
7.3009e-06
1.999e-08
d
yr
n .280971035039223 1.601e-09 deg/d
Q 2.712133986476658 1.0303e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1373  
   data-arc span      14853 days (40.67 yr)  
   first obs. used      1978-08-31  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53434  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 23:41:53  

Additional Information
 Earth MOID = .899199 au 
 Jupiter MOID = 2.70952 au 
 T_jup = 3.553 
[ 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 MPO337431  

20483 Sinay           Discovered 1999 July 14 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Daniella Sinay (b. 1990) is a finalist in the 2004 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for her environmental sciences project. She attends the Hillel Academy, Fairfield, Connecticut.
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 NK41 = 1978 QW = 1985 QD4 = 1992 PP3 = 1998 HZ126 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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