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15232 (1987 SD13)
Classification: Main-belt Asteroid          SPK-ID: 2015232
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1919606164871654 3.6398e-08  
a 2.363644139913714 6.6321e-09 au
q 1.909917553659601 8.5909e-08 au
i 1.921529654361512 4.0403e-06 deg
node 65.07513224301637 0.00011947 deg
peri 333.9973707975194 0.00011988 deg
M 331.4074242302837 9.6168e-06 deg
tp 2459105.919837926429
(2020-Sep-13.41983793)
3.5524e-05 TDB
period 1327.307548615826
3.63
5.5864e-06
1.529e-08
d
yr
n .2712257610343765 1.1415e-09 deg/d
Q 2.817370726167826 7.9052e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1538  
   data-arc span      25211 days (69.02 yr)  
   first obs. used      1951-11-08  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47834  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:59:20  

Additional Information
 Earth MOID = .91794 au 
 Jupiter MOID = 2.59665 au 
 T_jup = 3.524 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456880.5 (2014-Aug-11.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1936906309865002 3.6603e-08  
q 1.905516589096065 8.6592e-08 au
tp 2456450.269923888485
(2013-Jun-06.76992389)
3.4707e-05 TDB
node 65.09131566237555 0.0001193 deg
peri 333.7736593355035 0.0001197 deg
i 1.92402704515073 4.0439e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1538  
   data-arc span      25211 days (69.02 yr)  
   first obs. used      1951-11-08  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47834  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:59:20  

Additional Information
 Jupiter MOID = 2.59665 au 
 T_jup = 3.524 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.339809469409219E-15 -3.163604441363548E-15 -9.062762706127977E-14 -1.08120425347026E-14 -1.687465994565676E-14 -3.519341298557254E-16
q -3.163604441363548E-15 7.498253224678056E-15 1.857931731888887E-13 2.449881366767474E-14 3.426732288251424E-14 8.362172039971934E-16
tp -9.062762706127977E-14 1.857931731888887E-13 1.204567388177325E-9 -6.754025076544192E-12 3.552124576633021E-10 1.95247118105239E-13
node -1.08120425347026E-14 2.449881366767474E-14 -6.754025076544192E-12 1.423323962555952E-8 -1.422647452246802E-8 -9.245589991466697E-11
peri -1.687465994565676E-14 3.426732288251424E-14 3.552124576633021E-10 -1.422647452246802E-8 1.432913802103019E-8 9.246899205200159E-11
i -3.519341298557254E-16 8.362172039971934E-16 1.95247118105239E-13 -9.245589991466697E-11 9.246899205200159E-11 1.635327822917236E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO337387  
diameter diameter 6.767 km 0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15232 (1987 SD13)          Discovered 1987-Sep-24 by Debehogne, H. at La Silla
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1987 SD13 = 1987 TA1 = 1987 WG3 = 1998 SL70 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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