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JPL Small-Body Database Browser
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5519 Lellouch (1990 QB4)
Classification: Main-belt Asteroid          SPK-ID: 2005519
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04003446786182452 3.2582e-08  
a 3.167663557557232 1.6507e-08 au
q 3.040847832665134 1.0835e-07 au
i 6.720824806999811 4.344e-06 deg
node 157.3964580008142 3.2601e-05 deg
peri 288.7184388505654 6.6032e-05 deg
M 354.7379051483908 5.7387e-05 deg
tp 2459030.599769559269
(2020-Jun-30.09976956)
0.00032827 TDB
period 2059.240159462945
5.64
1.6096e-05
4.407e-08
d
yr
n .1748217653709167 1.3665e-09 deg/d
Q 3.294479282449329 1.7167e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2456  
   data-arc span      18731 days (51.28 yr)  
   first obs. used      1968-10-23  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46883  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:40:09  

Additional Information
 Earth MOID = 2.06608 au 
 Jupiter MOID = 1.79345 au 
 T_jup = 3.191 
[ 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 12.4   n/a MPO365314  
diameter diameter 19.917 km 0.106 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5519 Lellouch           Discovered 1990 Aug. 23 by H. E. Holt at Palomar.
Named in honor of Emmanuel Lellouch (b. 1963), planetary scientist at Observatoire de Paris. Lellouch works mainly on planetary and satellite atmospheres using infrared and millimeter spectroscopy. He made important contributions to the first observations of Io's global atmosphere, wind measurements in Venus and Mars, and detection of water in outer planets. He also studies planetary surfaces and comets, and has been or is coinvestigator or associate on many spacecraft experiments (Phobos, Galileo, ISO, Cassini, Mars Express, Rosetta, FIRST). Name suggested and citation prepared by M. A. Barucci and M. Fulchignoni.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990728/MPCPages.arcLast Updated: 2010-06-11

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Alternate Designations
 1990 QB4 = 1968 UR2 = 1979 SF4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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