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15947 Milligan (1998 AL10)
Classification: Main-belt Asteroid          SPK-ID: 2015947
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .157299012316457 2.9488e-08  
a 2.524738018375755 9.7455e-09 au
q 2.12759922172744 7.7066e-08 au
i 4.93748129412892 4.2533e-06 deg
node 141.5025464996111 3.8969e-05 deg
peri 265.0809281326854 4.1963e-05 deg
M 262.381039294334 1.6689e-05 deg
tp 2459397.832953513935
(2021-Jul-02.33295351)
6.867e-05 TDB
period 1465.28770877105
4.01
8.484e-06
2.323e-08
d
yr
n .2456855386454687 1.4225e-09 deg/d
Q 2.92187681502407 1.1278e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1639  
   data-arc span      13606 days (37.25 yr)  
   first obs. used      1983-05-07  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52427  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 01:02:47  

Additional Information
 Earth MOID = 1.14394 au 
 Jupiter MOID = 2.47013 au 
 T_jup = 3.432 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO337394  
diameter diameter 4.482 km 0.205 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.184   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15947 Milligan           Discovered 1998 Jan. 2 by J. Broughton at Reedy Creek Observatory.
Spike Milligan (b. 1918) is best known for his off-the-planet sense of humor in the groundbreaking BBC radio comedy series The Goon Show, which he wrote and starred in with Sellers, Secombe and Bentine in the 1950s. He later moved to film, television and writing novels, poetry and memoirs.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010509/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1998 AL10 = 1990 DE5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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