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46404 (2002 EV20)
Classification: Main-belt Asteroid          SPK-ID: 2046404
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08832381137332107 3.1219e-08  
a 2.687960573628283 1.4155e-08 au
q 2.450549650944215 8.1826e-08 au
i 21.46607803285828 4.7157e-06 deg
node 195.0062073941026 1.0098e-05 deg
peri 279.6933222244767 3.1912e-05 deg
M 202.9129621518594 3.2021e-05 deg
tp 2460098.877543725047
(2023-Jun-03.37754373)
0.00014582 TDB
period 1609.65487162256
4.41
1.2715e-05
3.481e-08
d
yr
n .2236504273969698 1.7666e-09 deg/d
Q 2.925371496312352 1.5405e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1313  
   data-arc span      8479 days (23.21 yr)  
   first obs. used      1998-05-23  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49376  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 00:52:38  

Additional Information
 Earth MOID = 1.55412 au 
 Jupiter MOID = 2.22844 au 
 T_jup = 3.268 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457355.5 (2015-Nov-29.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09038317228031287 3.1291e-08  
q 2.442331068504962 8.2172e-08 au
tp 2456882.311706781781
(2014-Aug-12.81170678)
0.00013172 TDB
node 195.0969501520946 1.01e-05 deg
peri 279.4954585915066 3.1201e-05 deg
i 21.46710335870645 4.7177e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1313  
   data-arc span      8479 days (23.21 yr)  
   first obs. used      1998-05-23  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49376  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 00:52:38  

Additional Information
 Jupiter MOID = 2.22844 au 
 T_jup = 3.268 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.791551268876655E-16 -2.54133879773662E-15 -2.163791217596026E-13 -2.723274795530143E-15 -6.010844809231538E-14 2.376846796922432E-15
q -2.54133879773662E-15 6.752231815613579E-15 1.14770730002044E-12 7.033868073498677E-15 2.933595897765037E-13 -5.711480343945683E-15
tp -2.163791217596026E-13 1.14770730002044E-12 1.735127847373225E-8 -3.416743898176045E-11 3.902656550696336E-9 -1.40073545446956E-11
node -2.723274795530143E-15 7.033868073498677E-15 -3.416743898176045E-11 1.020052907223803E-10 -1.02012518913582E-10 1.414012171394324E-11
peri -6.010844809231538E-14 2.933595897765037E-13 3.902656550696336E-9 -1.02012518913582E-10 9.735224260978675E-10 -1.627322581323372E-11
i 2.376846796922432E-15 -5.711480343945683E-15 -1.40073545446956E-11 1.414012171394324E-11 -1.627322581323372E-11 2.225700832706731E-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 14.42   n/a MPO636721  
diameter diameter 4.175 km 0.147 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.232   0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46404 (2002 EV20)          Discovered 2002-Mar-09 by LINEAR at Socorro
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2002 EV20 = 1999 TM106 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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