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18679 Heatherenae (1998 FW102)
Classification: Main-belt Asteroid          SPK-ID: 2018679
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09128562931082204 1.3444e-08  
a 2.266364250796616 6.2202e-09 au
q 2.059477763915097 3.0717e-08 au
i 5.118398486752165 1.545e-07 deg
node 254.2493566834576 5.8706e-06 deg
peri 307.269982126908 1.0791e-05 deg
M 281.3569081002059 9.4224e-06 deg
tp 2459668.739458616625
(2022-Mar-30.23945862)
3.3099e-05 TDB
period 1246.215055059927
3.41
5.1305e-06
1.405e-08
d
yr
n .2888746998668609 1.1892e-09 deg/d
Q 2.473250737678135 6.788e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2174  
   data-arc span      10113 days (27.69 yr)  
   first obs. used      1993-08-17  
   last obs. used      2021-04-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48235  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:03:05  

Additional Information
 Earth MOID = 1.06088 au 
 Jupiter MOID = 2.5033 au 
 T_jup = 3.605 
[ 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 MPCxxxxx  
rotation period rot_per 6.248 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

18679 Heatherenae           Discovered 1998 Mar. 31 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Heather Renae Messick (b. 1986) was awarded third place in the 2003 Intel International Science and Engineering Fair for her botany project. She attends the Sargent High School, Monte Vista, Colorado, 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

Alternate Designations
 1998 FW102 = 1999 RU162 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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