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19104 (1981 EY13)
Classification: Main-belt Asteroid          SPK-ID: 2019104
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09759797675869328 4.4914e-08  
a 3.0632934422339 2.1015e-08 au
q 2.764322200053698 1.4425e-07 au
i 8.363961862044604 4.2463e-06 deg
node 209.5063198602641 2.7202e-05 deg
peri 144.2267735148015 3.3364e-05 deg
M 339.5453134114922 1.9743e-05 deg
tp 2459311.768352428988
(2021-Apr-07.26835243)		 0.0001078 TDB
period 1958.3094906446
5.36		 2.0151e-05
5.517e-08		 d
yr
n .1838320253871118 1.8917e-09 deg/d
Q 3.362264684414101 2.3066e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1084  
   data-arc span      14522 days (39.76 yr)  
   first obs. used      1981-02-12  
   last obs. used      2020-11-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52606  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:45:52  

Additional Information
 Earth MOID = 1.76375 au 
 Jupiter MOID = 2.11655 au 
 T_jup = 3.210 
[ 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 14.25   n/a E2021B10  
diameter diameter 5.131 km 0.239 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.169   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19104 (1981 EY13)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 EY13 = 1992 JD1 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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