Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1540037364654954 3.5018e-08  
a 2.271672346216436 9.2247e-09 au
q 1.921826316873766 7.8487e-08 au
i 6.519087610325141 3.8807e-06 deg
node 119.5285951255532 3.1099e-05 deg
peri 149.8537407571291 3.3517e-05 deg
M 173.6834714236086 1.2485e-05 deg
tp 2458397.144947598972
(2018-Oct-05.64494760)		 4.2398e-05 TDB
period 1250.595794084556
3.42		 7.6175e-06
2.086e-08		 d
yr
n .2878627944399271 1.7534e-09 deg/d
Q 2.621518375559106 1.0645e-08 au
   Orbit Determination Parameters
   # obs. used (total)      876  
   data-arc span      10428 days (28.55 yr)  
   first obs. used      1991-07-10  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52699  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 01:07:27  

Additional Information
 Earth MOID = .908799 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] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.401 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 0.142   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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-08 23:07 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin