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43642 (2002 EA41)
Classification: Outer Main-belt Asteroid          SPK-ID: 2043642
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .006448354912993291 5.3217e-08  
a 3.244761215042634 3.1681e-08 au
q 3.223837843120124 1.6866e-07 au
i 21.8562625760086 8.076e-06 deg
node 15.61107687840644 1.3422e-05 deg
peri 240.8664196968246 0.00058883 deg
M 47.19929725691139 0.00058743 deg
tp 2459116.598276974191
(2020-Sep-24.09827697)
0.0034846 TDB
period 2134.875435556114
5.84
3.1267e-05
8.56e-08
d
yr
n .1686281054174121 2.4697e-09 deg/d
Q 3.265684586965144 3.1886e-08 au
  Orbit Determination Parameters
   # obs. used (total)      451  
   data-arc span      9248 days (25.32 yr)  
   first obs. used      1996-03-22  
   last obs. used      2021-07-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62185  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 16:42:59  

Additional Information
 Earth MOID = 2.2317 au 
 Jupiter MOID = 1.69884 au 
 T_jup = 3.069 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457290.5 (2015-Sep-25.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .004158860040385502 6.0919e-08  
q 3.228996105133089 1.9211e-07 au
tp 2456890.267440825400
(2014-Aug-20.76744083)
0.0048335 TDB
node 15.69405891361898 1.3427e-05 deg
peri 224.7977594340087 0.00081578 deg
i 21.85723946364428 8.0754e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      451  
   data-arc span      9248 days (25.32 yr)  
   first obs. used      1996-03-22  
   last obs. used      2021-07-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62185  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 16:42:59  

Additional Information
 Jupiter MOID = 1.69884 au 
 T_jup = 3.069 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.711123937134315E-15 -1.154898711200503E-14 -1.336700663857064E-10 2.016494834604686E-15 -2.257772880587985E-11 -1.289331084616674E-15
q -1.154898711200503E-14 3.690753445255082E-14 4.04121605391995E-10 -1.193719059900823E-14 6.829263582959968E-11 6.698582465743544E-15
tp -1.336700663857064E-10 4.04121605391995E-10 2.336263063170528E-5 4.455631383382526E-10 3.942533768166354E-6 4.109432253759181E-10
node 2.016494834604686E-15 -1.193719059900823E-14 4.455631383382526E-10 1.802790161840495E-10 -9.203552688182855E-11 -1.09306263129381E-12
peri -2.257772880587985E-11 6.829263582959968E-11 3.942533768166354E-6 -9.203552688182855E-11 6.654918274378024E-7 7.053675368646453E-11
i -1.289331084616674E-15 6.698582465743544E-15 4.109432253759181E-10 -1.09306263129381E-12 7.053675368646453E-11 6.521252742837738E-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 14.30   n/a E2021B10  
diameter diameter 6.201 km 0.205 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.115   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43642 (2002 EA41)          Discovered 2002-Mar-09 by LINEAR at Socorro
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 2002 EA41 = 1996 FG12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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