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46577 (1992 EK12)
Classification: Main-belt Asteroid          SPK-ID: 2046577
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .140641628569091 3.8598e-08  
a 2.527835562702816 9.2221e-09 au
q 2.172316652409427 9.8105e-08 au
i 11.94525201809447 5.5539e-06 deg
node 157.6567897606026 1.4101e-05 deg
peri 243.9931167714209 2.4838e-05 deg
M 115.7419136510663 1.91e-05 deg
tp 2458528.534977812235
(2019-Feb-14.03497781)
7.7406e-05 TDB
period 1467.985128531958
4.02
8.0333e-06
2.199e-08
d
yr
n .2452340919556957 1.342e-09 deg/d
Q 2.883354472996205 1.0519e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1481  
   data-arc span      10286 days (28.16 yr)  
   first obs. used      1992-02-29  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52075  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 09:33:51  

Additional Information
 Earth MOID = 1.20785 au 
 Jupiter MOID = 2.6085 au 
 T_jup = 3.409 
[ show covariance matrix ]

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 15.0   n/a MPO452807  
diameter diameter 2.580 km 0.656 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.291   0.166 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46577 (1992 EK12)          Discovered 1992-Mar-06 by UESAC at La Silla
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1992 EK12 = 1996 EE11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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