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JPL Small-Body Database Browser
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11042 Ernstweber (1989 VD1)
Classification: Main-belt Asteroid          SPK-ID: 2011042
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06623046054675899 3.1604e-08  
a 2.344611615850205 1.0304e-08 au
q 2.189326908729165 7.4036e-08 au
i 7.534047932402991 3.6289e-06 deg
node 101.3272049120989 3.4949e-05 deg
peri 350.9920786964042 5.1073e-05 deg
M 30.91460127645552 3.6959e-05 deg
tp 2458487.892855943789
(2019-Jan-04.39285594)
0.00013452 TDB
period 1311.308255206583
3.59
8.6445e-06
2.367e-08
d
yr
n .2745349909684552 1.8098e-09 deg/d
Q 2.499896322971245 1.0987e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1190  
   data-arc span      10771 days (29.49 yr)  
   first obs. used      1989-11-03  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52979  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:09:58  

Additional Information
 Earth MOID = 1.20643 au 
 Jupiter MOID = 2.61132 au 
 T_jup = 3.547 
[ 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 14.9   n/a MPO319224  
diameter diameter 2.690 km 0.824 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.322   0.205 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11042 Ernstweber           Discovered 1989 Nov. 3 by E. W. Elst at the European Southern Observatory.
Ernst Heinrich Weber (1795-1878) was a German physiologist who did fundamental research on the sense of touch. In his De Tactu (1834) he stated what became the Weber-Fechner Law: that there is a threshold of sensation that must be passed before an increase in the intensity of the stimulus can be detected.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000523/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 1989 VD1 = 1998 DK9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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