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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08832381487249849 3.1645e-08  
a 2.687960574864017 1.4271e-08 au
q 2.450549642665153 8.2739e-08 au
i 21.46607807951099 4.843e-06 deg
node 195.0062074192593 1.0239e-05 deg
peri 279.6933187971183 3.2381e-05 deg
M 202.9129649118696 3.2285e-05 deg
tp 2460098.877531868669
(2023-Jun-03.37753187)
0.00014689 TDB
period 1609.654872732567
4.41
1.2819e-05
3.51e-08
d
yr
n .2236504272427419 1.7811e-09 deg/d
Q 2.925371507062881 1.5532e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1230  
   data-arc span      8425 days (23.07 yr)  
   first obs. used      1998-05-23  
   last obs. used      2021-06-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50637  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:34:54  

Additional Information
 Earth MOID = 1.55412 au 
 Jupiter MOID = 2.22844 au 
 T_jup = 3.268 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457314.5 (2015-Oct-19.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09039276220721276 3.172e-08  
q 2.442332801233101 8.3099e-08 au
tp 2456882.349650157329
(2014-Aug-12.84965016)
0.00013325 TDB
node 195.0970435240756 1.024e-05 deg
peri 279.5040317154154 3.1652e-05 deg
i 21.46715741479177 4.8453e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1230  
   data-arc span      8425 days (23.07 yr)  
   first obs. used      1998-05-23  
   last obs. used      2021-06-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50637  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:34:54  

Additional Information
 Jupiter MOID = 2.22844 au 
 T_jup = 3.268 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.00618027467241E-15 -2.605659845889491E-15 -3.194494114180846E-13 -3.086944839246587E-15 -8.486338087460264E-14 2.287026025981377E-15
q -2.605659845889491E-15 6.905470826173078E-15 1.391257358011216E-12 7.877500577699307E-15 3.518459991222397E-13 -5.470965901744631E-15
tp -3.194494114180846E-13 1.391257358011216E-12 1.775593135116675E-8 -3.903125885105007E-11 4.005401275005723E-9 -1.77329315570219E-11
node -3.086944839246587E-15 7.877500577699307E-15 -3.903125885105007E-11 1.048631346192948E-10 -1.057610427255636E-10 1.60051852182749E-11
peri -8.486338087460264E-14 3.518459991222397E-13 4.005401275005723E-9 -1.057610427255636E-10 1.001864867013296E-9 -1.885210430790806E-11
i 2.287026025981377E-15 -5.470965901744631E-15 -1.77329315570219E-11 1.60051852182749E-11 -1.885210430790806E-11 2.347651091024126E-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 14.44   n/a E2021B10  
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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