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27495 Heatherfennell (2000 GD114)
Classification: Main-belt Asteroid          SPK-ID: 2027495
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03515937732545089 3.569e-08  
a 2.781087086869678 1.5185e-08 au
q 2.683305796607488 1.0255e-07 au
i 3.778048393756563 4.448e-06 deg
node 341.1084002991551 5.9661e-05 deg
peri 300.020921799081 8.6901e-05 deg
M 47.27769494585445 6.3262e-05 deg
tp 2458778.028643429771
(2019-Oct-21.52864343)
0.00029758 TDB
period 1694.026928702983
4.64
1.3874e-05
3.798e-08
d
yr
n .2125113797781426 1.7405e-09 deg/d
Q 2.878868377131868 1.5719e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1296  
   data-arc span      8913 days (24.40 yr)  
   first obs. used      1995-03-02  
   last obs. used      2019-07-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51898  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 02:51:09  

Additional Information
 Earth MOID = 1.66945 au 
 Jupiter MOID = 2.17108 au 
 T_jup = 3.329 
[ 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 14.3   n/a MPO435954  
diameter diameter 8.264 km 0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.916 h n/a LCDB (Rev. 2019-August); 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.]
geometric albedo albedo 0.059   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27495 Heatherfennell           Discovered 2000 Apr. 7 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Heather Fennell mentored a finalist in the 2011 Broadcom MASTERS, a math and science competition for middle-school students. She teaches at the Topsail Middle School, Hampstead, North Carolina.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20111210/MPCPages.arcLast Updated: 2011-12-12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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