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JPL Small-Body Database Browser
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13946 (1990 OK3)
Classification: Main-belt Asteroid          SPK-ID: 2013946
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.


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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 .2158874969227992 4.3158e-08  
a 2.408420826203465 1.2525e-08 au
q 1.888472882497659 1.0526e-07 au
i 3.090100372457116 4.482e-06 deg
node 127.7548163862076 8.1292e-05 deg
peri 205.0814903875508 8.2021e-05 deg
M 341.8555059993031 1.657e-05 deg
tp 2459069.308065575479
(2020-Aug-07.80806558)
6.3243e-05 TDB
period 1365.202226428634
3.74
1.065e-05
2.916e-08
d
yr
n .2636971966722903 2.057e-09 deg/d
Q 2.928368769909271 1.5229e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1374  
   data-arc span      10867 days (29.75 yr)  
   first obs. used      1990-07-27  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55108  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:56:59  

Additional Information
 Earth MOID = .878615 au 
 Jupiter MOID = 2.44092 au 
 T_jup = 3.487 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456135.5 (2012-Jul-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2142687204145884 4.2789e-08  
q 1.892611559409503 1.0419e-07 au
tp 2456337.878350327857
(2013-Feb-14.37835033)
5.0303e-05 TDB
node 127.7929759876054 8.1405e-05 deg
peri 204.8189173656715 8.2155e-05 deg
i 3.086521064219895 4.4763e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1374  
   data-arc span      10867 days (29.75 yr)  
   first obs. used      1990-07-27  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55108  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:56:59  

Additional Information
 Jupiter MOID = 2.44092 au 
 T_jup = 3.487 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.830859348535197E-15 -4.438721158436046E-15 1.358258791149483E-13 -2.651986976679352E-15 4.170634231636295E-14 7.706005166854175E-16
q -4.438721158436046E-15 1.085514129209951E-14 -6.12123795149553E-14 5.329810160568596E-15 -4.675342308836699E-14 -1.722634076987594E-15
tp 1.358258791149483E-13 -6.12123795149553E-14 2.530402929080544E-9 -1.196452031787905E-11 5.783636215621572E-10 6.85310673758505E-13
node -2.651986976679352E-15 5.329810160568596E-15 -1.196452031787905E-11 6.626767151386514E-9 -6.619426186682303E-9 7.38917713015376E-11
peri 4.170634231636295E-14 -4.675342308836699E-14 5.783636215621572E-10 -6.619426186682303E-9 6.749430047812426E-9 -7.364886057974752E-11
i 7.706005166854175E-16 -1.722634076987594E-15 6.85310673758505E-13 7.38917713015376E-11 -7.364886057974752E-11 2.003723702242871E-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 14.6   n/a MPO473956  
diameter diameter 3.297 km 0.227 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.282   0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13946 (1990 OK3)          Discovered 1990-Jul-27 by Holt, H. E. at Palomar
Reference: 20000320/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 OK3 = 1994 TM1 = 2000 CR34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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