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JPL Small-Body Database Browser
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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09847113119854707 4.5851e-08  
a 3.065440467735349 2.2182e-08 au
q 2.763583077255646 1.4597e-07 au
i 8.362619074723932 4.6384e-06 deg
node 209.5999637787315 2.7433e-05 deg
peri 144.1487989287636 3.3758e-05 deg
M 302.8508642809736 2.0482e-05 deg
tp 2459311.703822278185
(2021-Apr-07.20382228)		 0.00011294 TDB
period 1960.3686846807
5.37		 2.1279e-05
5.826e-08		 d
yr
n .1836389260924334 1.9933e-09 deg/d
Q 3.367297858215052 2.4367e-08 au
   Orbit Determination Parameters
   # obs. used (total)      973  
   data-arc span      13996 days (38.32 yr)  
   first obs. used      1981-02-12  
   last obs. used      2019-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53823  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:41:43  

Additional Information
 Earth MOID = 1.7647 au 
 Jupiter MOID = 2.11655 au 
 T_jup = 3.209 
[ 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 14.2   n/a MPO435876  
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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