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15819 Alisterling (1994 SN9)
Classification: Main-belt Asteroid          SPK-ID: 2015819
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .113508777105514 2.3937e-08  
a 2.185335956463947 5.4167e-09 au
q 1.937281144481015 5.2157e-08 au
i 6.834091794776555 3.9555e-06 deg
node 181.901789694375 2.7992e-05 deg
peri 119.4865066128942 3.5127e-05 deg
M 35.10272544342531 2.1631e-05 deg
tp 2458885.442725923878
(2020-Feb-05.94272592)
7.0808e-05 TDB
period 1179.98298263652
3.23
4.3872e-06
1.201e-08
d
yr
n .3050891456041395 1.1343e-09 deg/d
Q 2.433390768446878 6.0316e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2414  
   data-arc span      14278 days (39.09 yr)  
   first obs. used      1981-09-25  
   last obs. used      2020-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45729  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:31:11  

Additional Information
 Earth MOID = .933126 au 
 Jupiter MOID = 2.7564 au 
 T_jup = 3.660 
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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 14.3   n/a MPO473979  
diameter diameter 3.067 km 0.123 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.392   0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15819 Alisterling           Discovered 1994 Sept. 28 by Spacewatch at Kitt Peak.
Alister Ling (b. 1962) is a meteorologist with Environment Canada. An amateur astronomer who is a skilled observer and writer, he contributes a regular feature to Astronomy magazine and won the Simon Newcomb Award in 2003. 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

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Alternate Designations
 1994 SN9 = 1981 SE4 
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