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18809 Meileawertz (1999 JP86)
Classification: Main-belt Asteroid          SPK-ID: 2018809
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1241502755620133 3.2962e-08  
a 2.402769335809024 7.6623e-09 au
q 2.104464860656378 8.0487e-08 au
i 2.23352771715359 3.1198e-06 deg
node 111.8059806603405 9.3394e-05 deg
peri 83.0151291320318 9.4252e-05 deg
M 308.8884668642962 1.2721e-05 deg
tp 2459393.644771244633
(2021-Jun-28.14477124)
4.8256e-05 TDB
period 1360.399764637395
3.72
6.5074e-06
1.782e-08
d
yr
n .2646280963566291 1.2658e-09 deg/d
Q 2.70107381096167 8.6136e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1293  
   data-arc span      11026 days (30.19 yr)  
   first obs. used      1991-01-12  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52411  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:47:51  

Additional Information
 Earth MOID = 1.10403 au 
 Jupiter MOID = 2.25339 au 
 T_jup = 3.513 
[ 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 15.31   n/a MPCxxxxx  
diameter diameter 1.907 km 0.343 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.306   0.183 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18809 Meileawertz           Discovered 1999 May 12 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Meilea Elise Wertz (b. 1988) was awarded third place in the 2003 Intel International Science and Engineering Fair for her environmental science team project. She attends the Deming High School, Deming, New Mexico, 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
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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