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46026 (2001 DJ20)
Classification: Main-belt Asteroid          SPK-ID: 2046026
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1732502885655621 3.451e-08  
a 2.630097101195882 1.346e-08 au
q 2.174432019458247 8.9127e-08 au
i 13.80628150226863 5.3067e-06 deg
node 119.8509830513583 1.8613e-05 deg
peri 115.1047604464259 2.5881e-05 deg
M 129.3226719481009 1.703e-05 deg
tp 2458440.834844140381
(2018-Nov-18.33484414)
7.2862e-05 TDB
period 1557.959274073147
4.27
1.1959e-05
3.274e-08
d
yr
n .2310715087300144 1.7738e-09 deg/d
Q 3.085762182933516 1.5792e-08 au
  Orbit Determination Parameters
   # obs. used (total)      868  
   data-arc span      23477 days (64.28 yr)  
   first obs. used      1955-07-24  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4975  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:20:20  

Additional Information
 Earth MOID = 1.2019 au 
 Jupiter MOID = 2.08478 au 
 T_jup = 3.338 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456999.5 (2014-Dec-08.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1725042065283036 3.4517e-08  
q 2.177358250900324 8.9137e-08 au
tp 2456882.709858902871
(2014-Aug-13.20985890)
7.245e-05 TDB
node 119.8937549894984 1.8621e-05 deg
peri 115.2831993121272 2.5947e-05 deg
i 13.80063144023548 5.3049e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      868  
   data-arc span      23477 days (64.28 yr)  
   first obs. used      1955-07-24  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4975  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:20:20  

Additional Information
 Jupiter MOID = 2.08478 au 
 T_jup = 3.338 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.191444114111572E-15 -3.053454638163517E-15 -3.381372065757883E-13 -1.820185949433852E-15 -9.05531061214884E-14 -2.459699513552599E-15
q -3.053454638163517E-15 7.945459963787946E-15 8.780893842635873E-13 4.847567083356785E-15 2.362505714370875E-13 7.010968284673329E-15
tp -3.381372065757883E-13 8.780893842635873E-13 5.248972186893871E-9 -1.464904466060555E-11 1.329143044147004E-9 3.045251470233555E-12
node -1.820185949433852E-15 4.847567083356785E-15 -1.464904466060555E-11 3.467484080638325E-10 -3.397197827212543E-10 2.963928805862708E-11
peri -9.05531061214884E-14 2.362505714370875E-13 1.329143044147004E-9 -3.397197827212543E-10 6.732518995913559E-10 -2.807331239016523E-11
i -2.459699513552599E-15 7.010968284673329E-15 3.045251470233555E-12 2.963928805862708E-11 -2.807331239016523E-11 2.814187459754773E-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 14.9   n/a MPO347844  
diameter diameter 3.072 km 0.249 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.247   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46026 (2001 DJ20)          Discovered 2001-Feb-16 by LINEAR at Socorro
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

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