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15219 (1981 EY42)
Classification: Main-belt Asteroid          SPK-ID: 2015219
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1355541304335451 4.7382e-08  
a 2.411818950377346 9.4165e-09 au
q 2.084886929795799 1.1273e-07 au
i .6328499468129247 5.0467e-06 deg
node 211.7806879208511 0.00033633 deg
peri 10.48031533906063 0.00033662 deg
M 135.2605337791585 1.5747e-05 deg
tp 2458486.475193958693
(2019-Jan-02.97519396)
5.8344e-05 TDB
period 1368.0925618481
3.75
8.0122e-06
2.194e-08
d
yr
n .2631400901074199 1.5411e-09 deg/d
Q 2.738750970958893 1.0693e-08 au
  Orbit Determination Parameters
   # obs. used (total)      771  
   data-arc span      15960 days (43.70 yr)  
   first obs. used      1977-02-12  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52598  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:35:02  

Additional Information
 Earth MOID = 1.0763 au 
 Jupiter MOID = 2.23655 au 
 T_jup = 3.506 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO337387  

15219 (1981 EY42)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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