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15227 (1986 VA)
Classification: Main-belt Asteroid          SPK-ID: 2015227
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1003802031589024 3.9985e-08  
a 3.024731086749448 1.5052e-08 au
q 2.721107965760491 1.2469e-07 au
i 8.848526060425463 3.3976e-06 deg
node 271.9698906112577 2.71e-05 deg
peri 61.2380008532861 3.1682e-05 deg
M 261.5308833251302 1.8668e-05 deg
tp 2459922.064621489995
(2022-Dec-08.56462149)
0.00010108 TDB
period 1921.447760734147
5.26
1.4343e-05
3.927e-08
d
yr
n .1873587236441189 1.3986e-09 deg/d
Q 3.328354207738406 1.6563e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2183  
   data-arc span      12691 days (34.75 yr)  
   first obs. used      1986-11-04  
   last obs. used      2021-08-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48908  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 13:58:03  

Additional Information
 Earth MOID = 1.72317 au 
 Jupiter MOID = 1.99433 au 
 T_jup = 3.219 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457475.5 (2016-Mar-28.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0988537793375628 3.9983e-08  
q 2.726695058470555 1.2448e-07 au
tp 2457998.136917154466
(2017-Sep-01.63691715)
9.7892e-05 TDB
node 271.9981309865872 2.7097e-05 deg
peri 60.98912108067024 3.181e-05 deg
i 8.847298857299148 3.3973e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2183  
   data-arc span      12691 days (34.75 yr)  
   first obs. used      1986-11-04  
   last obs. used      2021-08-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48908  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 13:58:03  

Additional Information
 Jupiter MOID = 1.99433 au 
 T_jup = 3.219 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.598632018068343E-15 -4.949173245712652E-15 1.487594089333747E-13 1.782357527461441E-15 2.740902377778478E-14 3.953543089075293E-16
q -4.949173245712652E-15 1.549572221807252E-14 -1.125708884451373E-13 -7.607613192135648E-15 -3.234662197561765E-14 -4.18952990607181E-16
tp 1.487594089333747E-13 -1.125708884451373E-13 9.582806674863639E-9 2.003855216738887E-11 1.660757032839329E-9 1.948685402449956E-12
node 1.782357527461441E-15 -7.607613192135648E-15 2.003855216738887E-11 7.342402474269716E-10 -7.218970456637801E-10 2.239612373041782E-11
peri 2.740902377778478E-14 -3.234662197561765E-14 1.660757032839329E-9 -7.218970456637801E-10 1.0118968333752E-9 -2.179008430464563E-11
i 3.953543089075293E-16 -4.18952990607181E-16 1.948685402449956E-12 2.239612373041782E-11 -2.179008430464563E-11 1.154167724516634E-11

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 13.13   n/a MPO614063  
diameter diameter 8.469 km 0.203 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.205   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15227 (1986 VA)          Discovered 1986-Nov-04 by McNaught, R. H. at Siding Spring
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1986 VA = 1997 WJ53 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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