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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456933.5 (2014-Oct-03.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1348970877540145 4.7505e-08  
q 2.087265483634054 1.1295e-07 au
tp 2457117.612167283367
(2015-Apr-05.11216728)
5.5172e-05 TDB
node 211.8075563564592 0.00033663 deg
peri 10.49157752547548 0.00033693 deg
i .6320630600692622 5.0471e-06 deg
  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
 Jupiter MOID = 2.23655 au 
 T_jup = 3.506 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.256684747009174E-15 -5.352303546931642E-15 2.117857664199212E-13 2.369310660487516E-14 5.310319677130732E-14 -1.544828452544287E-16
q -5.352303546931642E-15 1.275807603629609E-14 -3.45958103445426E-13 -5.676079945178254E-14 -9.010644746244089E-14 4.090803642858671E-16
tp 2.117857664199212E-13 -3.45958103445426E-13 3.043992929349745E-9 3.593798348004469E-12 7.850584489517604E-10 3.746318096759794E-13
node 2.369310660487516E-14 -5.676079945178254E-14 3.593798348004469E-12 1.133220586644274E-7 -1.133132678365421E-7 1.556896747857656E-10
peri 5.310319677130732E-14 -9.010644746244089E-14 7.850584489517604E-10 -1.133132678365421E-7 1.135188601041015E-7 -1.555826061424607E-10
i -1.544828452544287E-16 4.090803642858671E-16 3.746318096759794E-13 1.556896747857656E-10 -1.555826061424607E-10 2.547358354166585E-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 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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