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15577 Gywilliams (2000 GN68)
Classification: Main-belt Asteroid          SPK-ID: 2015577
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1187995202660773 3.2733e-08  
a 2.218361442220995 6.8336e-09 au
q 1.954821167108377 7.1547e-08 au
i 2.16610626014336 3.4723e-06 deg
node 189.3214369417061 0.00010788 deg
peri 36.01706708517606 0.00010931 deg
M 80.70088212941245 1.6684e-05 deg
tp 2458929.965491493348
(2020-Mar-21.46549149)
5.6048e-05 TDB
period 1206.83219925918
3.30
5.5764e-06
1.527e-08
d
yr
n .2983016199111921 1.3784e-09 deg/d
Q 2.481901717333613 7.6454e-09 au
  Orbit Determination Parameters
   # obs. used (total)      783  
   data-arc span      14763 days (40.42 yr)  
   first obs. used      1980-03-16  
   last obs. used      2020-08-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56139  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:03:16  

Additional Information
 Earth MOID = .944822 au 
 Jupiter MOID = 2.49302 au 
 T_jup = 3.641 
[ 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 16.38   n/a E2021B10  
diameter diameter 1.767 km 0.227 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.225   0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15577 Gywilliams           Discovered 2000 Apr. 5 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Named in honor of Genevieve Y. Williams for achievement as a finalist in the 2001 Discovery Young Scientist Challenge (DYSC), a middle school science competition. Genevieve is a student at the Palos Verdes Intermediate School, Palos Verdes, California.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20011002/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 2000 GN68 = 1980 FD1 = 1994 RE13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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