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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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1406416285854651 3.8565e-08  
a 2.527835562625055 9.2017e-09 au
q 2.172316652301212 9.7997e-08 au
i 11.94525205176129 5.5529e-06 deg
node 157.6567894551644 1.4065e-05 deg
peri 243.9931171833925 2.4802e-05 deg
M 115.7419135800799 1.9098e-05 deg
tp 2458528.534978123477
(2019-Feb-14.03497812)
7.7395e-05 TDB
period 1467.985128464222
4.02
8.0156e-06
2.195e-08
d
yr
n .2452340919670114 1.339e-09 deg/d
Q 2.883354472948898 1.0496e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1484  
   data-arc span      10329 days (28.28 yr)  
   first obs. used      1992-02-29  
   last obs. used      2020-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52062  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:46:35  

Additional Information
 Earth MOID = 1.20785 au 
 Jupiter MOID = 2.6085 au 
 T_jup = 3.409 
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Orbital Elements at Epoch 2456909.5 (2014-Sep-09.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1388863037100876 3.8521e-08  
q 2.177313919902491 9.7781e-08 au
tp 2457058.094429165458
(2015-Feb-04.59442917)
7.8025e-05 TDB
node 157.7052384430906 1.4047e-05 deg
peri 243.5935969108106 2.5064e-05 deg
i 11.94951113461051 5.5549e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1484  
   data-arc span      10329 days (28.28 yr)  
   first obs. used      1992-02-29  
   last obs. used      2020-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52062  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:46:35  

Additional Information
 Jupiter MOID = 2.6085 au 
 T_jup = 3.409 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.483838271498212E-15 -3.754239769641264E-15 -2.074567125887144E-12 1.903339231926449E-14 -5.567345065535321E-13 -1.569861020167732E-15
q -3.754239769641264E-15 9.561052919714565E-15 5.285871742182063E-12 -4.884972026056661E-14 1.416797737190047E-12 4.14459641448688E-15
tp -2.074567125887144E-12 5.285871742182063E-12 6.087845370909382E-9 -3.872122108330331E-11 1.62537790296858E-9 7.999511109762669E-12
node 1.903339231926449E-14 -4.884972026056661E-14 -3.872122108330331E-11 1.973318109705508E-10 -2.027230052482849E-10 2.226195520503515E-11
peri -5.567345065535321E-13 1.416797737190047E-12 1.62537790296858E-9 -2.027230052482849E-10 6.281937003839671E-10 -1.972731455604492E-11
i -1.569861020167732E-15 4.14459641448688E-15 7.999511109762669E-12 2.226195520503515E-11 -1.972731455604492E-11 3.085654661757463E-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 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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