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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06511025550079011 4.2418e-08  
a 2.610595679558974 1.3118e-08 au
q 2.44061912785363 1.0912e-07 au
i 2.405265326609756 4.1164e-06 deg
node 289.8319441182366 0.00012256 deg
peri 213.6550110739928 0.00012803 deg
M 183.9354767109241 3.7624e-05 deg
tp 2459953.989498159085
(2023-Jan-09.48949816)
0.00016228 TDB
period 1540.663696864712
4.22
1.1613e-05
3.179e-08
d
yr
n .2336655304675568 1.7613e-09 deg/d
Q 2.780572231264317 1.3973e-08 au
  Orbit Determination Parameters
   # obs. used (total)      776  
   data-arc span      14872 days (40.72 yr)  
   first obs. used      1979-11-22  
   last obs. used      2020-08-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57476  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:45:52  

Additional Information
 Earth MOID = 1.45329 au 
 Jupiter MOID = 2.22122 au 
 T_jup = 3.406 
[ 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 15.47   n/a E2021B10  
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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