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19595 Lafer-Sousa (1999 NW31)
Classification: Main-belt Asteroid          SPK-ID: 2019595
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05207251442822461 2.6026e-08  
a 2.560283957734322 1.0621e-08 au
q 2.42696353440485 6.4759e-08 au
i 1.792600852408868 3.0755e-06 deg
node 138.9159372855581 0.00011582 deg
peri 155.21976988 0.00012343 deg
M 86.70347159995667 4.2073e-05 deg
tp 2458840.116735016686
(2019-Dec-22.61673502)
0.00017583 TDB
period 1496.341184498289
4.10
9.3107e-06
2.549e-08
d
yr
n .2405868419111281 1.497e-09 deg/d
Q 2.693604381063794 1.1174e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1456  
   data-arc span      8848 days (24.22 yr)  
   first obs. used      1996-12-14  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52177  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:59:07  

Additional Information
 Earth MOID = 1.40906 au 
 Jupiter MOID = 2.3866 au 
 T_jup = 3.433 
[ 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 14.97   n/a E2021B10  
diameter diameter 2.873 km 0.212 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.257   0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19595 Lafer-Sousa           Discovered 1999 July 14 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Luis Lafer-Sousa (b. 1989) is a finalist in the 2003 Discovery Channel Young Scientist Challenge, a middle school science competition, for his biochemistry, medicine, health and microbiology project. He attends the Keystone Junior High School, San Antonio, Texas.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20031010/MPCPages.arcLast Updated: 2003-10-10

Alternate Designations
 1999 NW31 = 1996 XK26 = 1998 FR35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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