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JPL Small-Body Database Browser
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15742 Laurabassi (1991 LB4)
Classification: Main-belt Asteroid          SPK-ID: 2015742
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03227365644478388 4.3989e-08  
a 2.688891441917375 1.2188e-08 au
q 2.602111083303614 1.1828e-07 au
i 14.23339329194144 4.9348e-06 deg
node 238.9594363354055 1.4518e-05 deg
peri 15.43615779583727 6.3677e-05 deg
M 204.0025183747055 6.3251e-05 deg
tp 2459698.368212222056
(2022-Apr-28.86821222)
0.00028384 TDB
period 1610.491103974359
4.41
1.095e-05
2.998e-08
d
yr
n .2235342990169858 1.5198e-09 deg/d
Q 2.775671800531136 1.2581e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1550  
   data-arc span      11438 days (31.32 yr)  
   first obs. used      1988-10-08  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49752  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:26:45  

Additional Information
 Earth MOID = 1.59023 au 
 Jupiter MOID = 2.24337 au 
 T_jup = 3.328 
[ 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 13.8   n/a MPO319281  
diameter diameter 4.869 km 0.291 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.247   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

15742 Laurabassi           Discovered 1991 June 6 by E. W. Elst at the European Southern Observatory.
Laura Bassi (1711-1778) was the first woman to receive a philosophical degree in physics at a European university (Bologna). Not allowed to teach, she gave lectures on physics and performed experimental demonstrations, based on Newton's Principia, at her home. Name suggested by K. Leterme.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2017-10-05Last Updated: 2017-10-09

Alternate Designations
 1991 LB4 = 1988 TE5 = 1997 WY33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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