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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1540037378951879 3.4646e-08  
a 2.271672346615782 9.1302e-09 au
q 1.921826313963818 7.7787e-08 au
i 6.519087573973736 3.8807e-06 deg
node 119.5285925402474 3.0755e-05 deg
peri 149.8537429562604 3.3159e-05 deg
M 173.6834715322496 1.2472e-05 deg
tp 2458397.144947062467
4.2322e-05 TDB
period 1250.595794414327
n .2878627943640204 1.7354e-09 deg/d
Q 2.621518379267745 1.0536e-08 au
  Orbit Determination Parameters
   # obs. used (total)      886  
   data-arc span      10722 days (29.36 yr)  
   first obs. used      1991-07-10  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52613  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 20:53:27  

Additional Information
 Earth MOID = .908798 au 
 Jupiter MOID = 2.47894 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 15.7   n/a MPO502364  
diameter diameter 2.675 km 0.820 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 6.401 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.]
geometric albedo albedo 0.142   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2048-Jan-09 13:30 00:02 David 0.0284009223457338 0.0283968427455344 0.028405002037068 4.68646503968004 4.6864649261776 2469085.062299108 1.56249726675607 218.991498090426 34.4907782219493 22.1022220990507 49677.1917362498 T 28 CATAB v2.0f-lin.ifort 2020-Dec-17 20:53:30 2020-Dec-17 20:53

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