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JPL Small-Body Database Browser
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19596 Spegorlarson (1999 NX31)
Classification: Main-belt Asteroid          SPK-ID: 2019596
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07081338071266859 2.8683e-08  
a 2.52794816067373 9.4277e-09 au
q 2.348935605150051 7.1526e-08 au
i 1.876674871514767 3.9115e-06 deg
node 148.1736497072959 0.00010042 deg
peri 84.84502890613398 0.00010476 deg
M 128.7458950216206 2.977e-05 deg
tp 2458475.473091104886
(2018-Dec-22.97309110)
0.00012111 TDB
period 1468.083212831759
4.02
8.2125e-06
2.248e-08
d
yr
n .2452177075886609 1.3718e-09 deg/d
Q 2.706960716197409 1.0095e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1987  
   data-arc span      8404 days (23.01 yr)  
   first obs. used      1996-10-19  
   last obs. used      2019-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50149  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:51:32  

Additional Information
 Earth MOID = 1.33866 au 
 Jupiter MOID = 2.27396 au 
 T_jup = 3.448 
[ 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 14.2   n/a MPO395191  
diameter diameter 3.868 km 0.186 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.225   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19596 Spegorlarson           Discovered 1999 July 14 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Spencer Gordon Larson (b. 1991) is a finalist in the 2003 Discovery Channel Young Scientist Challenge, a middle school science competition, for his botany and zoology project. He attends the Springville Middle School, Springville, Utah.
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 NX31 = 1996 UA5 = 1998 FC20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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