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15058 Billcooke (1998 YL16)
Classification: Main-belt Asteroid          SPK-ID: 2015058
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1767119754864654 3.7526e-08  
a 3.082861401423389 1.4984e-08 au
q 2.538082873026889 1.1619e-07 au
i 5.828419755294705 3.8448e-06 deg
node 123.82330036 4.2769e-05 deg
peri 283.6058217165712 4.4434e-05 deg
M 71.42915806128254 1.0955e-05 deg
tp 2458808.214317597503
(2019-Nov-20.71431760)
6.0254e-05 TDB
period 1977.103601637541
5.41
1.4414e-05
3.946e-08
d
yr
n .1820845400826892 1.3275e-09 deg/d
Q 3.627639929819889 1.7632e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1703  
   data-arc span      10339 days (28.31 yr)  
   first obs. used      1992-11-18  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49072  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:46:20  

Additional Information
 Earth MOID = 1.55514 au 
 Jupiter MOID = 1.79275 au 
 T_jup = 3.195 
[ 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 13.7   n/a MPO452383  
diameter diameter 9.284 km 0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.118   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15058 Billcooke           Discovered 1998 Dec. 22 by Spacewatch at Kitt Peak.
William Joe Cooke, Jr., (b. 1958) studied at Valdosta State University and the University of Florida. Cooke generates custom meteor activity forecasts. The name was suggested by R. Jedicke and P. Jedicke.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050523/MPCPages.arcLast Updated: 2005-07-21

[ show close-approach data ]
Alternate Designations
 1998 YL16 = 1992 WV9 = 1994 CA13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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