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19103 (1981 ER11)
Classification: Main-belt Asteroid          SPK-ID: 2019103
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06442877600609424 4.2393e-08  
a 2.611781210710145 1.2993e-08 au
q 2.443507344108376 1.0906e-07 au
i 2.406201084525996 4.1844e-06 deg
node 289.8408779736002 0.00012377 deg
peri 213.2392184083443 0.00012951 deg
M 137.702195515625 3.865e-05 deg
tp 2458410.785263476240
(2018-Oct-19.28526348)
0.00016459 TDB
period 1541.713291887669
4.22
1.1505e-05
3.15e-08
d
yr
n .2335064514876284 1.7425e-09 deg/d
Q 2.780055077311915 1.3831e-08 au
  Orbit Determination Parameters
   # obs. used (total)      750  
   data-arc span      14401 days (39.43 yr)  
   first obs. used      1979-11-22  
   last obs. used      2019-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57159  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 22:53:32  

Additional Information
 Earth MOID = 1.45638 au 
 Jupiter MOID = 2.22298 au 
 T_jup = 3.405 
[ 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 15.5   n/a MPO337419  
diameter diameter 2.496 km 0.655 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.179   0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19103 (1981 ER11)          Discovered 1981-Mar-07 by Bus, S. J. at Siding Spring
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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