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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2156081896466687 4.1906e-08  
a 2.407948875408141 6.2458e-09 au
q 1.88877537761966 1.0099e-07 au
i 3.09026612591232 3.7357e-06 deg
node 127.755306813619 6.4027e-05 deg
peri 205.1183291288614 6.4435e-05 deg
M 86.28530969698477 6.0881e-06 deg
tp 2459069.382573253859
(2020-Aug-07.88257325)
2.3357e-05 TDB
period 1364.800961393847
3.74
5.3101e-06
1.454e-08
d
yr
n .2637747262665601 1.0263e-09 deg/d
Q 2.927122373196622 7.5925e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1956  
   data-arc span      11176 days (30.60 yr)  
   first obs. used      1990-07-27  
   last obs. used      2021-03-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49379  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 17:09:40  

Additional Information
 Earth MOID = .878166 au 
 Jupiter MOID = 2.4421 au 
 T_jup = 3.488 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457350.5 (2015-Nov-24.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2155978851701042 4.1819e-08  
q 1.888617438314132 1.0078e-07 au
tp 2457705.666770789270
(2016-Nov-13.16677079)
2.528e-05 TDB
node 127.7760437953959 6.4076e-05 deg
peri 205.3457389080238 6.4486e-05 deg
i 3.089250073797305 3.734e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1956  
   data-arc span      11176 days (30.60 yr)  
   first obs. used      1990-07-27  
   last obs. used      2021-03-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49379  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 17:09:40  

Additional Information
 Jupiter MOID = 2.4421 au 
 T_jup = 3.488 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.748813928469086E-15 -4.209586034495779E-15 3.00028444014246E-13 1.900939199732475E-14 4.986806286724805E-14 -1.934616289499779E-15
q -4.209586034495779E-15 1.015754435546493E-14 -7.793698783396535E-13 -4.584217579098594E-14 -1.375033656183448E-13 4.720866955562389E-15
tp 3.00028444014246E-13 -7.793698783396535E-13 6.390584215513873E-10 4.068001997203986E-12 1.941276874744211E-10 -5.576714264693674E-13
node 1.900939199732475E-14 -4.584217579098594E-14 4.068001997203986E-12 4.105786219982958E-9 -4.098654810908476E-9 1.225325078044949E-10
peri 4.986806286724805E-14 -1.375033656183448E-13 1.941276874744211E-10 -4.098654810908476E-9 4.15848166469825E-9 -1.225263623285371E-10
i -1.934616289499779E-15 4.720866955562389E-15 -5.576714264693674E-13 1.225325078044949E-10 -1.225263623285371E-10 1.394270682076712E-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 14.66   n/a E2021B10  
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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