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27208 Jennyliu (1999 CF104)
Classification: Main-belt Asteroid          SPK-ID: 2027208
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .142849642761543 3.4825e-08  
a 2.919085185834808 1.4746e-08 au
q 2.502094909847793 1.0413e-07 au
i 1.166407035861492 4.0156e-06 deg
node 279.8434761678531 0.00023301 deg
peri 182.177165114834 0.00023364 deg
M 52.1820984598887 1.7368e-05 deg
tp 2458336.449119884474
(2018-Aug-05.94911988)
8.74e-05 TDB
period 1821.665276927464
4.99
1.3803e-05
3.779e-08
d
yr
n .1976213767477628 1.4974e-09 deg/d
Q 3.336075461821823 1.6852e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1335  
   data-arc span      9186 days (25.15 yr)  
   first obs. used      1994-03-05  
   last obs. used      2019-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54487  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:02:17  

Additional Information
 Earth MOID = 1.51913 au 
 Jupiter MOID = 1.80989 au 
 T_jup = 3.265 
[ 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 14.3   n/a MPO279799  
rotation period rot_per 9.102 h n/a LCDB (Rev. 2019-January); 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

27208 Jennyliu           Discovered 1999 Feb. 12 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Jenny Jiaqi Liu (b. 1993) was a finalist in the 2010 Intel Science Talent Search, a science competition for high-school seniors, for her computer-science project. She attends the Amity Regional High School, Woodbridge, Connecticut, 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: 20110319/MPCPages.arcLast Updated: 2011-03-23

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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