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18880 Toddblumberg (1999 XM166)
Classification: Outer Main-belt Asteroid          SPK-ID: 2018880
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1815883982675347 5.8173e-08  
a 3.212423448315821 2.3988e-08 au
q 2.629084619779081 1.87e-07 au
i 9.637212769742593 6.9355e-06 deg
node 19.72312179315713 2.405e-05 deg
peri 29.26736888033971 2.7488e-05 deg
M 251.6465991599679 1.4078e-05 deg
tp 2459833.476598046487
(2022-Sep-10.97659805)
8.5977e-05 TDB
period 2103.04036172482
5.76
2.3556e-05
6.449e-08
d
yr
n .1711807374465909 1.9174e-09 deg/d
Q 3.795762276852561 2.8344e-08 au
  Orbit Determination Parameters
   # obs. used (total)      838  
   data-arc span      23987 days (65.67 yr)  
   first obs. used      1953-10-31  
   last obs. used      2019-07-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5519  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:41:07  

Additional Information
 Earth MOID = 1.64271 au 
 Jupiter MOID = 1.67666 au 
 T_jup = 3.143 
[ 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 14.1   n/a MPO266055  
diameter diameter 4.283 km 0.438 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.265   0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18880 Toddblumberg           Discovered 1999 Dec. 10 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Todd James Blumberg (b. 1984) was awarded third place in the 2003 Intel International Science and Engineering Fair for his microbiology project. He attends the Plano Senior High School, Plano, Texas, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040830/MPCPages.arcLast Updated: 2004-09-06

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Alternate Designations
 1999 XM166 = 1976 UC20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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