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18656 Mergler (1998 FW29)
Classification: Main-belt Asteroid          SPK-ID: 2018656
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08671015396325212 2.5065e-08  
a 2.366471015477003 7.1606e-09 au
q 2.161273949375419 5.9733e-08 au
i 6.497938047600936 3.7895e-06 deg
node 327.6615483067672 2.5482e-05 deg
peri 97.05942168104465 3.4616e-05 deg
M 243.5309070224462 2.346e-05 deg
tp 2459826.688111115319
(2022-Sep-04.18811112)
8.7183e-05 TDB
period 1329.689414095131
3.64
6.0352e-06
1.652e-08
d
yr
n .2707399157907746 1.2288e-09 deg/d
Q 2.571668081578588 7.7815e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1940  
   data-arc span      15623 days (42.77 yr)  
   first obs. used      1978-10-26  
   last obs. used      2021-08-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4871  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 14:35:52  

Additional Information
 Earth MOID = 1.18588 au 
 Jupiter MOID = 2.64048 au 
 T_jup = 3.534 
[ 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 14.22   n/a MPO636345  
diameter diameter 4.312 km 0.213 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.165   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18656 Mergler           Discovered 1998 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Natalie Rose Mergler (b. 1984) was awarded third place in the 2003 Intel International Science and Engineering Fair for her behavioral and social sciences project. She attends the Chaminade-Julienne High School, Dayton, Ohio, 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: 20040614/MPCPages.arcLast Updated: 2009-12-11

Alternate Designations
 1998 FW29 = 1978 UJ3 = 1983 CH6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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