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JPL Small-Body Database Browser
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27618 Ceilierin (2001 KL55)
Classification: Main-belt Asteroid          SPK-ID: 2027618
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1541458498611378 3.5385e-08  
a 2.27112311399158 9.3503e-09 au
q 1.921038911446075 7.952e-08 au
i 6.518953240290145 4.0416e-06 deg
node 119.5329769425873 3.1231e-05 deg
peri 149.7563829739422 3.3783e-05 deg
M 58.614028537389 1.247e-05 deg
tp 2458396.955902268733
(2018-Oct-05.45590227)
4.3049e-05 TDB
period 1250.142278422556
3.42
7.7204e-06
2.114e-08
d
yr
n .2879672227822358 1.7784e-09 deg/d
Q 2.621207316537086 1.0792e-08 au
  Orbit Determination Parameters
   # obs. used (total)      848  
   data-arc span      10365 days (28.38 yr)  
   first obs. used      1991-07-10  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53045  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 01:06:40  

Additional Information
 Earth MOID = .907557 au 
 Jupiter MOID = 2.4785 au 
 T_jup = 3.588 
[ 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 15.6   n/a MPO435955  
diameter diameter 2.675 km 0.820 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.401 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.142   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27618 Ceilierin           Discovered 2001 May 22 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Ceili Erin Masterson (b. 1998) is a finalist in the 2012 Broadcom MASTERS, a math and science competition for middle-school students, for her animal and plant sciences project. She attends the Stone Middle School, Melbourne, Florida.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20121029/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 2001 KL55 = 1991 NS4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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