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43965 (1997 EO32)
Classification: Main-belt Asteroid          SPK-ID: 2043965
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1671571764143301 3.3143e-08  
a 2.608348410771462 9.1641e-09 au
q 2.172344255322099 8.5573e-08 au
i .9128644051510409 4.8675e-06 deg
node 161.4630014233827 0.00019122 deg
peri 129.1870295553113 0.00019186 deg
M 185.7921379458436 1.3577e-05 deg
tp 2460141.081223091283
(2023-Jul-15.58122309)
5.7986e-05 TDB
period 1538.674759865504
4.21
8.1089e-06
2.22e-08
d
yr
n .2339675735185698 1.233e-09 deg/d
Q 3.044352566220825 1.0696e-08 au
  Orbit Determination Parameters
   # obs. used (total)      943  
   data-arc span      9605 days (26.30 yr)  
   first obs. used      1994-10-02  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52008  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:24:40  

Additional Information
 Earth MOID = 1.15587 au 
 Jupiter MOID = 2.12908 au 
 T_jup = 3.391 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457093.5 (2015-Mar-12.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1677265154786818 3.307e-08  
q 2.170320095155 8.547e-08 au
tp 2457066.081722278139
(2015-Feb-12.58172228)
5.9851e-05 TDB
node 161.478538653914 0.00019133 deg
peri 129.4832590243132 0.00019197 deg
i .9124908387071267 4.8688e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      943  
   data-arc span      9605 days (26.30 yr)  
   first obs. used      1994-10-02  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52008  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:24:40  

Additional Information
 Jupiter MOID = 2.12908 au 
 T_jup = 3.391 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.093654549179327E-15 -2.815309245327205E-15 5.866244400282775E-13 -4.84120375950846E-15 1.212767684904816E-13 -5.741361284035478E-17
q -2.815309245327205E-15 7.305069956531955E-15 -1.655390464120061E-12 1.252811559921065E-14 -3.488794697905968E-13 1.917419545659146E-16
tp 5.866244400282775E-13 -1.655390464120061E-12 3.582082376136699E-9 -9.598428953246012E-12 9.428948322347089E-10 -2.678805357028683E-13
node -4.84120375950846E-15 1.252811559921065E-14 -9.598428953246012E-12 3.660627167073946E-8 -3.66036179694579E-8 1.358281665302383E-10
peri 1.212767684904816E-13 -3.488794697905968E-13 9.428948322347089E-10 -3.66036179694579E-8 3.685242989058E-8 -1.358757438338258E-10
i -5.741361284035478E-17 1.917419545659146E-16 -2.678805357028683E-13 1.358281665302383E-10 -1.358757438338258E-10 2.370545007133586E-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 15.93   n/a MPCxxxxx  
diameter diameter 4.017 km 0.064 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43965 (1997 EO32)          Discovered 1997-Mar-11 by Spacewatch at Kitt Peak
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1997 EO32 = 1994 TK4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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