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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 ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .173250311467265 3.4524e-08  
a 2.630097090333596 1.3465e-08 au
q 2.174431950244153 8.9174e-08 au
i 13.80627987146943 5.309e-06 deg
node 119.8509869730859 1.8633e-05 deg
peri 115.1047669760502 2.5896e-05 deg
M 129.3226619625706 1.7039e-05 deg
tp 2458440.834890821528
(2018-Nov-18.33489082)
7.2901e-05 TDB
period 1557.959264421602
4.27
1.1964e-05
3.276e-08
d
yr
n .2310715101615004 1.7745e-09 deg/d
Q 3.085762230423039 1.5798e-08 au
  Orbit Determination Parameters
   # obs. used (total)      866  
   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      .49891  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:14:00  

Additional Information
 Earth MOID = 1.2019 au 
 Jupiter MOID = 2.08478 au 
 T_jup = 3.338 
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Orbital Elements at Epoch 2456995.5 (2014-Dec-04.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1725019162610252 3.4532e-08  
q 2.177358086370091 8.9185e-08 au
tp 2456882.709041487155
(2014-Aug-13.20904149)
7.248e-05 TDB
node 119.8937534097941 1.8641e-05 deg
peri 115.2829625058948 2.5963e-05 deg
i 13.8006323446995 5.3071e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      866  
   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      .49891  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:14:00  

Additional Information
 Jupiter MOID = 2.08478 au 
 T_jup = 3.338 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.192429725957491E-15 -3.056334015437804E-15 -3.401740771751391E-13 -1.817895804413923E-15 -9.097692783369514E-14 -2.466420862144934E-15
q -3.056334015437804E-15 7.953881769408516E-15 8.840497522618628E-13 4.856398411486537E-15 2.374755613319127E-13 7.033517617102976E-15
tp -3.401740771751391E-13 8.840497522618628E-13 5.25331960377143E-9 -1.445368029504753E-11 1.329860795239777E-9 3.094882791284335E-12
node -1.817895804413923E-15 4.856398411486537E-15 -1.445368029504753E-11 3.474999192462424E-10 -3.404025315103266E-10 2.977296946307887E-11
peri -9.097692783369514E-14 2.374755613319127E-13 1.329860795239777E-9 -3.404025315103266E-10 6.740592694802274E-10 -2.819168005106022E-11
i -2.466420862144934E-15 7.033517617102976E-15 3.094882791284335E-12 2.977296946307887E-11 -2.819168005106022E-11 2.816575095423408E-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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