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JPL Small-Body Database Browser
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4133 Heureka (1942 DB)
Classification: Main-belt Asteroid          SPK-ID: 2004133
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1206360599396326 4.1932e-08  
a 2.582001334433852 1.2831e-08 au
q 2.270518866688878 1.0766e-07 au
i 12.05408070026523 4.2095e-06 deg
node 324.5827050166415 1.9815e-05 deg
peri 247.2087498130589 2.5455e-05 deg
M 255.4032222173217 1.7214e-05 deg
tp 2459440.800243361509
(2021-Aug-14.30024336)
7.3091e-05 TDB
period 1515.420369253411
4.15
1.1297e-05
3.093e-08
d
yr
n .2375578468549674 1.7708e-09 deg/d
Q 2.893483802178825 1.4379e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2220  
   data-arc span      28560 days (78.19 yr)  
   first obs. used      1942-02-17  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38958  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:03:50  

Additional Information
 Earth MOID = 1.29814 au 
 Jupiter MOID = 2.18739 au 
 T_jup = 3.383 
[ show covariance matrix ]

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 12.5   n/a MPO502193  

4133 Heureka (1942 DB)          Discovered 1942-Feb-17 by Oterma, L. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1942 DB = 1985 QY 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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