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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07064868165585231 2.8578e-08  
a 2.528275248509159 8.4683e-09 au
q 2.349655935338864 7.0854e-08 au
i 1.876618932572753 3.0483e-06 deg
node 148.171485054038 9.791e-05 deg
peri 84.83102672553419 0.00010108 deg
M 177.8115611932957 2.6617e-05 deg
tp 2458475.242129110624
(2018-Dec-22.74212911)
0.00010717 TDB
period 1468.368152036786
4.02
7.3773e-06
2.02e-08
d
yr
n .2451701226975271 1.2318e-09 deg/d
Q 2.706894561679453 9.0665e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2410  
   data-arc span      8905 days (24.38 yr)  
   first obs. used      1996-10-19  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47618  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:59:07  

Additional Information
 Earth MOID = 1.33803 au 
 Jupiter MOID = 2.27283 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 14.17   n/a E2021B10  
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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